[Botany • 2026] Impatiens arakanensis & I. cirrosa (Balsaminaceae) • Two New Species from the Arakan Mountain Range of Myanmar [Contributions to the Flora of Myanmar X]

Impatiens cirrosa Nob.Tanaka & T.Sugaw.,

 

in Tanaka, Aung et Sugawara, 2026.  

 DOI: doi.org/10.51033/jjapbot.ID0361 

Photographed by T.Sugawara.

 

Abstract

Two new species, Impatiens arakanensis Nob.Tanaka & T.Sugaw. (Balsaminaceae) and I. cirrosa Nob.Tanaka & T.Sugaw., from the Arakan Mountain Range, Magway Region, southwestern Myanmar, are described here. Impatiens arakanensis is similar to I. decipiens Hook.f. in floral morphology and coloration, but differs in having axillary inflorescence (vs. terminal), smooth dorsal petals (vs. with horn-like appendage), and pubescent lower sepal (vs. glabrous). Impatiens cirrosa is similar to I. tripetala Roxb. in floral morphology, but differs in having purple lower sepals (vs. orange to pale orange) with filamentous cirrus at apex, connate lateral united petals (vs. free) and white ovary with red spots (vs. green). Both of the two new species likely belong to Impatiens subgenus Impatiens sect. Uniflorae.

Keywords: Arakan, balsam, Burma, new taxon, sect. Uniflorae, taxonomy

Impatiens arakanensis.
A. Habit. B. A diagonal front view of flower. C. A front view of flower. D. A side view of flower. E. Dissected flower, showing lower sepal, dorsal petal, and lateral united petals. Scale bars: 10 mm.

Photographed by T.Sugawara.

Impatiens arakanensis Nob.Tanaka & T.Sugaw., sp. nov.   

 Impatiens arakanensis is similar to I. decipiens in floral morphology and purplish coloration, but distinguished from it by having an axillary inflorescence (vs. terminal inflorescence), smooth dorsal petals (vs. with horn-like appendage), and pubescent lower sepal (vs. glabrous).

Etymology: The specific epithet “arakanensis” refers to the name of the Arakan Mountain Range in which its type locality is located. 

Impatiens cirrosa.
A. Habit. Arrows showing a filamentous cirrus. B, C. A diagonal front view of flower, showing a filamentous cirrus. D. A front view of flower. E. Dissected flower: a. Lower sepal. b. A young fruit with pedicel. c, d. Lateral united petals. e. Dorsal petal. Scale bars: 10 mm.

Photographed by T.Sugawara.

Impatiens cirrosa Nob.Tanaka & T.Sugaw., sp. nov.  

 Impatiens cirrosa is similar to I. tripetala in floral morphology, but distinguished from it by having purple lower sepals (vs. orange to pale orange) with filamentous cirrus at apex, connate lateral united petals (vs. free) and white ovary with red spots (vs. green).

Etymology: The specific epithet “cirrosa” refers to the most distinctive character of Impatiens cirrosa, which is a very distinct species with long filamentous cirrus at the apex of the lower sepal and lower margin of lamina (Figs. 3B, E, 5).

Nobuyuki Tanaka, Mu Mu Aung and Takashi Sugawara. 2026. Contributions to the Flora of Myanmar X: Two New Species of Impatiens (Balsaminaceae) from the Arakan Mountain Range of Myanmar. J. Jap. Bot. 101(2); 88-96. DOI: doi.org/10.51033/jjapbot.ID0361 [April 20, 2026]

[Botany • 2025] Hoplocryptanthus serrapiresensis (Bromeliaceae: Bromelioideae) • Doomed to Extinction by Mining: A New Species from Congonhas, Minas Gerais, Brazil

 

Hoplocryptanthus serrapiresensis Leme, J.L.Lobo, O.B.C.Ribeiro & A.P.Gelli,

in Castro, Ribeiro, Leme, Almeida et Faria, 2025. 

DOI: doi.org/10.11646/phytotaxa.732.1.5  

 Researchgate.net/publication/398287909

Abstract

A new species of Hoplocryptanthus, a member of the bromelioid “Cryptanthoid complex”, is described based on plants discovered in a ferruginous rupestrian grassland located in the southern Iron Quadrangle region, Minas Gerais state, Brazil. Hoplocryptanthus serrapiresensis is endemic to the Pires Range, a region under strong threat by mining exploitation. The morphological characters of H. serrapiresensis are discussed in comparison with H. knegtianus and H. tiradentesensis. This microendemic species is assessed as Critically Endangered (CR), reinforcing the need for a strategy to protect the biodiversity of the region. Characters related to leaves proved useful in the taxonomic delimitation of this new species. Morphological analyses also validated and reinforced the diagnostic floral and inflorescence characters used in the circumscription of Hoplocryptanthus.

bromeliads, conservation, Espinhaço Range, morphology, Monocots

A–L. Hoplocryptanthus serrapiresensis (Leme 10355).
A. Habit. B. Frontal view of the corolla. C. Lateral view of the corolla.D. Flower. E. Abaxial view of sepals connate at the base. F. Petal, filaments, and style forming a common basal tube which is typical for Hoplocryptanthus. G. Details of the basal portion of the leaf blades with pronounced marginal spines. H. Floral bract. I. Longitudinalsection of the ovary. J. Stigma. K. Frontal view of the anther. L. Dorsal view of the anther.

Photographs by E. Leme. Bars = 5 mm (A–D,F–G). Bars = 1 mm (E, H–L). 

Hoplocryptanthus serrapiresensis Leme, J.L.Lobo, O.B.C.Ribeiro & A.P.Gelli, sp. nov.

A. General view of the ferruginous rupestrian fields of Pires Range, situated in the Congonhas municipality, at the southernend of the Espinhaço Range, Minas Gerais state, Brazil. B. Details of large banded itabirite blocks which occur randomly dispersed throughout the area. C. The saxicolous habit of Hoplocryptanthus serrapiresensis at type locality.
D. Presence of intense mining activityextending to the limits of the Pires Range. Photographs by P. H. Nobre.

A–G. Hoplocryptanthus knegtianus (Leme 9322). A. Habit. B. Frontal view of the corolla. C. Lateral view of the corolla.D. Details of the basal portion of the leaf blades and the marginal spines. E. Stigma. F. Frontal view of the anther. G. Dorsal view of theanther.
H. Habit of Hoplocryptanthus tiradentesensis (Leme 5819).

Photographs by E. Leme. Bars = 5 mm (A–B, D, H). Bars = 2 mm(C), Bars = 1 mm (E–G) 

JOÃO LUÍS L. M. DE CASTRO, OTÁVIO B. C. RIBEIRO, ELTON M. C. LEME, PEDRO S. DE ALMEIDA and ANA PAULA G. DE FARIA. 2025. Doomed to Extinction by Mining: A New Species of Hoplocryptanthus (Bromeliaceae: Bromelioideae) from Congonhas, Minas Gerais, Brazil.  Phytotaxa. 732(1); 57-66. DOI: doi.org/10.11646/phytotaxa.732.1.5 [2025-12-03]

 Researchgate.net/publication/398287909_a_new_species_of_Hoplocryptanthus_from_Congonhas_Minas_Gerais_Brazil

[Herpetology • 2026] Cyrtodactylus nebulicola • A New Species of Cyrtodactylus Gray, 1827 (Reptilia: Gekkonidae) from India with Redescriptions of the holotypes of C. gubernatoris & C. himalayicus

 

Cyrtodactylus nebulicola

Ray, Bhupathi, Chatterjee, Das & Mohapatra, 2026

 

Latpanchar Bent-toed Gecko  ||  DOI: doi.org/10.3897/zookeys.1278.186655  

Abstract

A new species of the genus Cyrtodactylus Gray is described from the eastern Himalayan region of West Bengal state, India. The new species is assigned to the C. peguensis species group and is readily distinguished from its regional congeners by a unique combination of morphological characters. These include dorsal scalation comprising small granules intermixed with enlarged, feebly keeled, weakly pointed tubercles arranged in 15–22 fairly regular longitudinal rows at midbody; 11–14 subdigital lamellae beneath the first digit and 17–23 beneath the fourth digit; nine precloacal pores and 6–9 femoral pores in males; 10–12 supralabials; and nine infralabials. Molecular analyses based on mitochondrial NADH dehydrogenase subunit 2 (ND2) sequence data further support the distinctiveness of the new species, which exhibits 11.8–19.8% uncorrected pairwise sequence divergence from its closest congeners. Specifically, it differs from C. gubernatoris by 11.8–12.0% and from C. bhupathyi by 18.5–19.8%, while showing divergences exceeding 20.5% from other congeners examined. In addition to the description of the new species, detailed redescriptions of the holotypes of two regional congeners, C. himalayicus and C. gubernatoris, are provided based on direct examination. The discovery of this new taxon highlights the underestimated diversity of Cyrtodactylus in the eastern Himalayas and underscores the importance of integrated morphological and molecular approaches in resolving species boundaries within this speciose gecko genus.

Key words: Cyrtodactylus peguensis, Darjeeling, eastern Himalayas, morphology, taxonomy, West Bengal

Live specimens of Cyrtodactylus nebulicola sp. nov.
 (A) uncollected individual, (B) one of the paratypes (ZSI-R-29060).

Cyrtodactylus nebulicola sp. nov.

Suggested common English name. Latpanchar Bent-toed Gecko.

Etymology. The species epithet nebulicola is derived from the Latin words: nebula meaning “mist” or “cloud,” and -cola meaning “dweller” or “inhabitant”, collectively meaning “dweller of the mist”. The name refers to the characteristic mist-laden, cloud-forest habitat of Latpanchar in the Darjeeling Himalaya, where the species was discovered. The epithet is treated as a noun in apposition and does not change with gender.

Sumidh Ray, Bharath Bhupathi, Suvrajyoti Chatterjee, Ritesh Das and Pratyush P. Mohapatra. 2026. Description of A New Species of Cyrtodactylus Gray, 1827 (Reptilia, Gekkonidae) from India with redescriptions of the holotypes of C. gubernatoris (Annandale, 1913) and C. himalayicus (Annandale, 1906). ZooKeys. 1278: 317-338. DOI: doi.org/10.3897/zookeys.1278.186655 [30 Apr 2026]

[Herpetology • 2026] Gekko wuzhengjuni • A New Species of Karst-adapted Gecko (Squamata: Gekkonidae: Gekko) from Guangxi, China

Gekko wuzhengjuni  Yu & Chen, 

in Yu, H.-L. Chen, Y.-B. Li, Y.-H. Li et Z.-Ni. Chen, 2026. 

 DOI: doi.org/10.3897/zse.102.185568

Abstract

The genus Gekko comprises a diverse group of nocturnal lizards that are widely distributed across the plains and plateaus of temperate and tropical Asia, as well as the western islands of the Pacific Ocean. In this study, mitochondrial DNA and morphological data were integrated to diagnose and describe a novel species, Gekko wuzhengjuni sp. nov., from Guilin, Guangxi Zhuang Autonomous Region, China. Phylogenetic analyses indicate that this species forms a monophyletic lineage that is sister to G. fengshanensis within the Japonigekko subgenus, as determined by mitochondrial 16S rRNA (16S) and NADH dehydrogenase subunit 2 gene (ND2) sequences. The uncorrected genetic distances for mitochondrial 16S rRNA sequence divergence range from 9.85% (G. liboensis) to 19.11% (G. subpalmatus), whereas ND2 divergence ranges from 14.62% (G. fengshanensis) to 32.84% (G. liui) relative to other congeners. Morphologically, Gekko wuzhengjuni sp. nov. can be distinguished from its congeners in the region by a specific combination of characteristics: (1) nares that contact the rostral scale, with the absence of an internasal scale; (2) the presence of two enlarged postmental scales; (3) enlarged tubercles extending from the area posterior to the eyes along the neck to the base of the tail, arranged in eight or nine rows at midbody; (4) a total of 140–143 midbody scale rows; (5) precloacal pores continuous, numbering 10 in males and absent in females; and (6) a single postcloacal tubercle present on each side.

Key Words: Gekko wuzhengjuni sp. nov., integrative taxonomy, molecular phylogeny, morphology

Type specimens of Gekko wuzhengjuni sp. nov. in life.
A, B. Holotype GXNU 2025090902, adult male;
C, D. Paratype GXNU 2025090901, adult female. Photos by Shi-Jun He.

Gekko wuzhengjuni Yu & Chen, sp. nov.

Jia-Yi Yu, Hui-Ling Chen, You-Bang Li, Yu-Hui Li and Ze-Ning Chen. 2026. A New Species of Karst-adapted Gecko (Squamata, Gekkonidae, Gekko) from Guangxi, China. Zoosystematics and Evolution. 102(2): 719-729. DOI: doi.org/10.3897/zse.102.185568 [30 Apr 2026]

[Herpetology • 2026] Platymantis guiting • A New miniaturised Platymantis (Anura: Ceratobatrachidae) from Sibuyan and Tablas islands, Romblon Island Group, Philippines

Platymantis guiting

Meneses, Pitogo, Decena, Supsup & Brown, 2026

 lkcnhm.nus.edu.sg 

Abstract

 We describe a new species of miniaturised Platymantis (subgenus Lahatnanguri) from the Romblon Island Group (RIG), Philippines. Previously, the RIG population was treated as Platymantis pygmaeus, a forestdwelling species endemic to Luzon Island due to morphological, ecological, and acoustic similarities. We conducted phylogenetic analyses using 16S mitochondrial DNA sequences and quantified morphological variation across a statistically robust sample size to assess the distinctiveness of the RIG population. Our results recovered the RIG lineage as monophyletic with moderate support (75% bootstrap; 0.83 BPP). Phylogenetic analyses further demonstrate that Platymantis guiting, new species, is not closely related to P. pygmaeus and it is morphologically distinguished by shorter limb proportions and a stereotyped advertisement call characterised by a single-pulsed, repetitive clicking. Named after Mount Guiting-Guiting, the highest peak on Sibuyan Island, this species stands as a powerful reminder of the biogeographic subregion’s fragile and irreplaceable biodiversity. This taxonomic revision highlights the unique herpetological diversity of the RIG and reinforces the need for targeted conservation efforts in this biogeographically significant subregion. 

Key words. Sibuyan Island, elevational relief, Lahatnanguri, Philippine biodiversity, conservation, Platymantis guiting

Observed colour variation in live specimens of Platymantis guiting, new species, collected from Mt. Guiting-Guiting Natural Park.

Photos by Camila G. MENESES.

Platymantis (Lahatnanguri) guiting, new species 

Etymology. The specific epithet guiting is derived from Mount Guiting-Guiting, the highest peak on Sibuyan (and the larger Romblon Island Group), with an elevation of 2,058 m asl. This mountain is a prominent geographical feature of the region and a biodiversity hotspot at the heart of Sibuyan Island, characterised by its unique flora and fauna (Brown & Alcala, 1974; Goodman & Ingle, 1993; Nerz et al., 1997; Lit & Eusebio, 2008; Esselstyn & Goodman, 2010; Brown et al., 2011; Davis et al., 2016; Heaney et al., 2005; Rickart et al., 2005; Siler et al., 2012, 2016; Lucañas, 2021; Tautel & Dupo, 2021; Ermilov & Corpuz-Raros, 2022a, b; Meneses et al., 2022). The name honours the ecological significance of the mountain and its role in conserving locally endemic species of herpetofauna in RIG.

Camila G. MENESES, Kier Mitchel E. PITOGO, Syrus Cesar P. DECENA, Christian E. SUPSUP and Rafe M. BROWN. 2026. A New miniaturised Platymantis (Amphibia: Anura: Ceratobatrachidae) from Sibuyan and Tablas islands, Romblon Island Group, Philippines. RAFFLES BULLETIN OF ZOOLOGY. 74: 197–219. [2026-04-14]

https://lkcnhm.nus.edu.sg/rbz/a-new-miniaturised-platymantis-amphibia-anura-ceratobatrachidae-from-sibuyan-and-tablas-islands-romblon-island-group-philippines/

[Ichthyology • 2026] Hemigrammus serrazul • A New Hemigrammus (Characiformes: Acestrorhamphidae) from the rio Cuiabazinho Drainages, upper rio Paraguai Basin, Mato Grosso, Brazil

   

Hemigrammus serrazul  

Ferreira, Ribeiro & Carvalho, 2026

DOI: doi.org/10.1590/1982-0224-2025-0157

 

Abstract

A new species of Hemigrammus is described from tributaries of the rio Cuiabazinho, upper rio Paraguai basin, Mato Grosso State, Brazil. It can be readily distinguished from all its congeners by a unique combination of characters, including a distinctive body coloration pattern without spots, the number of perforated lateral-line scales (12–15), the number of branched rays on anal fin (21–25), and the presence of small bony hooks at the tips of the lepidotrichia of the second to fourth branched rays of the pelvic fins, which are absent in the anal fin. We also provide a brief discussion on the recent taxonomic reconfiguration of Hemigrammus.

Keywords: Freshwater fish; Rio Cuiabá drainage; Serra Azul; Serrana Province of Mato Grosso; Taxonomy

 Color pattern variations in live specimens of Hemigrammus serrazul: A. Male; B. Female.

Photo by Alexandre C. Ribeiro.  

Hemigrammus serrazul, new species

Diagnosis. Hemigrammus serrazul can be distinguished from most congeners (except of H. apiaka (Esguícero& Castro, 2017), H. erythrozonus Durbin, 1909, H. gracilis (Lütken, 1875), H. mimus Böhlke, 1955, and H. tupebas (Esguícero& Castro, 2017) by flank uniformly colored, without spots, i.e., no humeral and caudal spots, just a tiny and narrow longitudinal stripe (vs. species with spots in humeral and/or caudal peduncle). From H. apiaka, H. erythrozonus, H. gracilis, H. mimus, and H. tupebas, H. serrazul differs by premaxillary teeth in two rows: outer with three to five tricuspid teeth, inner with five ...

Etymology. The specific epithet serrazul refers to the type locality where the new species was collected, the Serra Azul, the local portion of the so-called Serrana Province of Mato Grosso, a range of escarped relief that serves as a watershed divide between the rio Cuiabá, Paraguai, and Arinos basins. A noun in apposition.

Hemigrammus serrazul, live specimen in aquarium, photographed just after capture in córrego Cocal (CPUFMT 8218), upper rio Paraguai basin, municipality of Rosário Oeste, Mato Grosso State, Brazil. Inserir:

Photo by Alexandre C. Ribeiro.

Katiane Mara Ferreira, Alexandre Cunha Ribeiro and Fernando Rogério Carvalho. 2026. A New Hemigrammus (Characiformes: Acestrorhamphidae) from the rio Cuiabazinho Drainages, upper rio Paraguai Basin.  Neotrop. ichthyol. 24 (01); DOI: doi.org/10.1590/1982-0224-2025-0157

[Mollusca • 2026] Landouria tumpeesuwanorum & L. flagellolonga • Molecular Phylogeny of recognised Thai Landouria Species (Gastropoda: Camaenidae), with Descriptions of Two New Species

 

Landouria tumpeesuwanorum & L. flagellolonga  

 Nahok & K. Tanmuangpak, 

in Nahok, Chanlabut et Tanmuangpak, 2026. 

DOI: doi.org/10.3897/zookeys.1278.172545

Abstract

The molecular phylogeny and morphological–anatomical characteristics of the terrestrial snail genus Landouria Godwin-Austen, 1918 from Thailand are investigated, and we describe two new species. Phylogenetic analysis of 11 recognised Thai Landouria species reveal that these species are phylogenetically well separated from each other by mtDNA phylogeny and COI sequence divergences of 0.048–0.192. Landouria tumpeesuwanorum sp. nov. is described from a limestone hill in Nong Bua Lamphu Province, northeastern Thailand; it is characterised by its angulated whorls, a strongly keeled shell, and small flagellum with curved ends. The second new species, Landouria flagellolonga sp. nov. is described from a limestone hill in Sa Kaeo Province, eastern Thailand. It has a conical-lenticular, sharply keeled shell, and a very long, slender flagellum.

Key words: 16S rRNA, Camaenidae, COI, genitalia, integrative systematics, phylogeny, taxonomy, terrestrial snail, Thailand

Systematics

Family Camaenidae Pilsbry, 1895

Subfamily Bradybaeninae Pilsbry, 1934

Tribe Aegistini Kuroda & Habe, 1949

Genus Landouria Godwin-Austen, 1918

 

Living adults of two Landouria new species.
A. Landouria tumpeesuwanorum sp. nov. (paratype: NHLRU027); B. L. flagellolonga sp. nov. (paratype: ZCPRU-0050).

Landouria flagellolonga Nahok & K. Tanmuangpak, sp. nov.

Etymology. Specific epithet derived from Latin word longus, meaning “long” and referring to the elongated flagellum of this species.

Diagnosis. Shell small, light brown-corneous, sharply keeled. Flagellum very long, epiphallus long and slender; penis long, cylindrical, dilated at its middle part; vagina and free oviduct short. Radula with lanceolate central and lateral teeth.

Landouria tumpeesuwanorum Nahok & K. Tanmuangpak, sp. nov.

Diagnosis. Shell large, brownish-corneous, angulated whorls, strongly keeled. Flagellum small with blunt ends; epiphallus cylindrical and abruptly tapering at its distal part; penis swollen at its basal; vagina large and bulged. Radula with triangular central and lateral teeth.

Etymology. In honour of Assoc. Prof. Chanidaporn Tumpeesuwan and Sakboworn Tumpeesuwan, Thai malacologists and our beloved advisor and co-advisor, respectively, who initiated the taxonomic study of Landouria in Thailand and whose inspiration has led to our study of molluscs.

 Benchawan Nahok, Utain Chanlabut and Kitti Tanmuangpak. 2026. Molecular Phylogeny of recognised Thai Landouria Species (Gastropoda, Camaenidae), with Descriptions of Two New Species. ZooKeys. 1278: 181-200. DOI: doi.org/10.3897/zookeys.1278.172545 [28 Apr 2026]

[Arachnida • 2026] Langelurillus sahyadri & L. udaipurensis • Further Notes on Indian Langelurillus Próchniewicz, 1994 (Araneae: Salticidae), with the Description of Two New Species

 

Langelurillus sahyadri Sanap, Tripathi, Thackeray & Caleb, 

in Sanap, Tripathi, Caleb, H. Koli, V.K. Koli, Intodia et Thackeray, 2026.

DOI: doi.org/10.11646/zootaxa.5792.1.11

Abstract

We describe two new species, Langelurillus sahyadri Sanap, Tripathi, Thackeray & Caleb sp. nov. (♂♀) from Maharashtra and Langelurillus udaipurensis Tripathi, Sanap & Caleb sp. nov. (♂) from Rajasthan. Additionally, the previously unknown females of L. lacteus Sanap, Joglekar & Caleb, 2017 and L. onyx Caleb, Sanap, Joglekar & Prajapati, 2017 are described for the first time. Detailed morphological descriptions, illustrations, diagnostic comparisons of the studied species, and a distributional map for all Indian species are provided.

Araneae, Aravalli hills, distribution, jumping spider, taxonomy, Western Ghats

 Langelurillus sahyadri Sanap, Tripathi, Thackeray & Caleb sp. nov. 

Langelurillus udaipurensis Tripathi, Sanap & Caleb sp. nov. 

Langelurillus lacteus Sanap, Joglekar & Caleb, 2017 

L. onyx Caleb, Sanap, Joglekar & Prajapati, 2017

RAJESH V. SANAP, RISHIKESH TRIPATHI, JOHN T.D. CALEB, HEMLATA KOLI, VIJAY KUMAR KOLI, ANJANA INTODIA and TEJAS THACKERAY. 2026. Further Notes on Indian Langelurillus Próchniewicz, 1994 (Araneae: Salticidae), with the Description of Two New Species. Zootaxa. 5792(1); 183-199. DOI: doi.org/10.11646/zootaxa.5792.1.11 [2026-04-10]

[Botany • 2025] Calea breviflora (Asteraceae) • A New Species endemic to White Sand ecosystems of easternmost Amazon, Maranhão, Brazil

Calea breviflora  V.R.Bueno & M.S.Silva, 

in Silva, Bueno, Scatigna et Marinho, 2025. 

DOI: doi.org/10.11646/phytotaxa.682.1.6 

Abstract

During field expeditions on white sand patches in northwestern Maranhão, Brazil, we found specimens of Calea characterized by minute florets and pappuses, common to Calea divaricata clade species. After thorough analysis, we concluded that those specimens represent a new species, which is described here as Calea breviflora. Its description, distribution map, illustrations, taxonomic comments, information on the habitat and a preliminary conservation assessment are provided. Moreover, we present an identification key for the Calea divaricata clade species.

Biodiversity, campinarana, taxonomy, white sand soil, Eudicots

Calea breviflora

MIZALENE SILVA DA SILVA, VINICIUS RESENDE BUENO, ANDRÉ VITO SCATIGNA and LUCAS CARDOSO MARINHO. 2025. Calea breviflora (Asteraceae): A New Species endemic to White Sand ecosystems of easternmost Amazon, Maranhão, Brazil.  Phytotaxa. 682()1); 91-100. DOI: doi.org/10.11646/phytotaxa.682.1.6 [2025-01-16]

[Botany • 2021] Hedysarum sunhangii (Fabaceae: Hedysareae) • A New Species from Pamir-Alay (Babatag Ridge, Uzbekistan)

Hedysarum sunhangii  Juramurodov & Tojibaev, 

in Juramurodov, Tojibaev, Nikitina, Makhmudjanov, Yusupov, Deng et Dehkanov, 2021. 

DOI: 10.11646/phytotaxa.524.1.1

  Researchgate.net/publication/355714611

 

Abstract

Hedysarum sunhangii is a new species described from the Babatag Ridge in the Uzbekistan part of the South-West Pamir-Alay (Central Asia). Morphological and molecular phylogenetic analyses were utilized to determine the taxonomic position of the species in genus Hedysarum. This new species belongs to the subsect. Crinifera of the sect. Multicaulia and it resembles H. criniferum and H. nuratense, but can be distinguished by details of its 3–4 pairs of larger and elliptical or ovate shaped leaflets, standard and keel sizes.

Keywords: Crinifera, Morphology, phylogeny, taxonomy, Eudicots

 Living plant of Hedysarum sunhangii.
A, in its habitat; B, Leaves (1-upper part, 2-lower part); C, Pods (3-front side, 4-lateral side); D, flower; E, raceme; F, entire plant.

Hedysarum sunhangii Juramurodov & Tojibaev, sp. nov.

INOM JURAMURODOV, KOMILJON TOJIBAEV, ELENA NIKITINA, DILMUROD MAKHMUDJANOV, ZIYOVIDDIN YUSUPOV, TAO DENG and DAVRON DEHKANOV. 2021. Hedysarum sunhangii (Fabaceae, Hedysareae), A New Species from Pamir-Alay (Babatag Ridge - Uzbekistan). Phytotaxa. 524(1); 1-13. DOI: 10.11646/phytotaxa.524.1.1

  Researchgate.net/publication/355714611_Hedysarum_sunhangii_a_new_species_from_Pamir-Alay_Babatag_Ridge_Uzbekistan

[Invertebrate • 2025] Alloscopus sago & A. jantapasoae • Two New Species of the Genus Alloscopus Börner, 1906 (Collembola: Orchesellidae: Heteromurinae) from southern Thailand

Alloscopus sago Jantarit & Manee, sp. nov.  
   A. jantapasoae Jantarit, Nilsai & Manee, sp. nov.

in Jantarit, Manee, Nilsai, Mitpuangchon et Pimsai, 2025.

DOI: doi.org/10.3897/zookeys.1245.148100 

Abstract 

Two new species of Alloscopus Börner (Orchesellidae: Heteromurinae) are discovered and described from southern Thailand. The first species, Alloscopus sago Jantarit & Manee, sp. nov. was found in a sago palm forest (Metroxylon sagu Rottb.), a true sago palm species native to Southeast Asia and typically located in lowland freshwater swamps in Phatthalung Province. The second species, A. jantapasoae Jantarit, Nilsai & Manee, sp. nov. was sampled from a dark zone within a cave environment in Trang Province. Both species are characterized by the absence of eyes and mucronal spines, the presence of a PAO, two rows of smooth chaetae on the manubrium, and dental spines. However, they differ in several morphological features, including the number of macrochaetae on the ‘A’ series of the head, Th. II and Abd. IV; labial basis chaetotaxy; the presence of smooth chaetae on tibiotarsi; the number of chaetae on both the anterior and posterior ventral tube; and the number of the inter-teeth on the claw. The discovery of these two new species increases the total number of Alloscopus species recorded in Thailand to six species with a total of 17 recognized species globally. An updated key to the world species of Alloscopus is also provided.   

Key words: Cave, chaetotaxy, Entomobryoidea, sago palm, taxonomy

Alloscopus sago Jantarit & Manee, sp. nov.   

 A. jantapasoae Jantarit, Nilsai & Manee, sp. nov.

 Sopark Jantarit, Nongnapat Manee, Areeruk Nilsai, Natrada Mitpuangchon and Awatsaya Pimsai. 2025. Two New Species of the Genus Alloscopus Börner, 1906 (Collembola, Orchesellidae, Heteromurinae) from southern Thailand. ZooKeys. 1245: 357-381. DOI: doi.org/10.3897/zookeys.1245.148100 

 

 

[Botany • 2026] Primula maershanensis (Primulaceae) • A New Species from Sichuan, China

 

Primula maershanensis  J.L.Gu & Z.K.Wu, 

in Sheng, Y.-M. Wu, Gu, Lin, Zhou, Zheng and Z.-K. Wu, 2026. 

马耳山报春  ||  DOI: doi.org/10.3897/phytokeys.274.191386 

Abstract

Primula maershanensis J.L.Gu & Z.K.Wu, a new species of Primulaceae from Sichuan, China, is described and illustrated. Morphological evidence supports the placement of P. maershanensis within Primula sect. Auganthus, a section characterized by leaves that are shallowly to deeply lobed and covered with hairs and by a distinctively broad calyx with a flattened base. The new species is distinguished from other species in this section by its short rhizome and nearly fleshy roots; subpurple petioles and scapes; leaf blade suborbicular, wider than long, margin palmately 5–9-lobed to the middle of the blade; and a bright yellow corolla associated with long-homostylous flowers. Information on the distribution, morphological comparisons with closely related species, and the conservation status of the new species is also provided, along with a key to the known species of Primula sect. Auganthus.

Key words: Conservation status, diversity, maer shan bao chun, nomenclature, Sichuan, taxonomy

Primula maershanensis sp. nov. 

A. Habitat; B, C. Habit during flowering; D. Roots; E. Leaves, left: upper surface, right: lower surface; F. Flower scape; G. Flower bract (enlarged view); H. Bracts; I. Flower, lateral view; J. Dissected corolla showing anthers and stigmas; K. Calyx and pedicel; L. Outside of dissected calyx; M. Infructescence; N. Young fruits; O. Dissected young fruit. 

Photographed by Zhikun Wu, Mingyun Sheng, and Jiulin Gu.

Primula maershanensis J.L.Gu & Z.K.Wu, sp. nov.

 

Diagnosis. The new species is most similar to P. sinensis, P. rupestris, and P. jiangyouensis in sharing leaves and stems covered with hairs, lobed leaf blades, distinctly petiolate leaves, and a distinctively broad and flat-bottomed calyx. However, it is distinguished from the latter three mainly by several morphological features: a short rhizome and nearly fleshy roots; subpurple petioles and scapes; leaf blade suborbicular, wider than long, palmately 5–9-lobed to approximately 1/2 of its blade, long-homostylous flowers with a bright yellow corolla (Figs 1, 2). For a more accurate delimitation of all known species in this section, we observed living plants and captured their photographs, in addition to examining herbarium specimens of the other seven species within this section (Figs 3, 4). The main morphological distinctions between P. maershanensis and P. jiangyouensis, P. sinensis, and P. rupestris are summarized in Table 1.

 

Ming-yun Sheng, Yuan-mi Wu, Jiu-lin Gu, Hong-qiang Lin, Wei Zhou, Lei Zheng and Zhi-kun Wu. 2026. Primula maershanensis (Primulaceae), A New Species in Primula sect. Auganthus from Sichuan, China. PhytoKeys. 274: 61-71. DOI: doi.org/10.3897/phytokeys.274.191386 [28 Apr 2026]

[Botany • 2025] Anisomeles tamilnadense (Lamiaceae) • A New Species from Tamil Nadu, India

 

 Anisomeles tamilnadense  Ramasubbu & Bechu 

in Bechu, Ramasubbu, Spurgeon, Venkatesh et Kalaiselvan, 2025. 

DOI: doi.org/10.11646/phytotaxa.711.2.10 

 Researchgate.net/publication/393979625

 

Abstract

A new species of Lamiaceae, Anisomeles tamilnadense, is described from Dindigul, Tamil Nadu, India. This species is closely related to A. indica and A. malabarica. However, several features differ, including the ovate-lanceolate and narrowly crenate leaf margin, coloured spathulate bracts, coloured calyx, <100 banded unpigmented corolla hairs and larger stigma lobes. This distinctive combination of traits allows to describe a new species within the genus, contributing to the better knowledge of the flora of the Indian subcontinent.

Eudicots, Anisomeles indica, Anisomeles malabarica, Lamiales, morphology, taxonomy

 Anisomeles tamilnadense:
 a) adult shrub at flowering; b) inflorescence twig; c) indumentum in stem; f) leaf morphology; g) leaf apex; h) leaf margin; A. malabarica: d) leaf morphology; i) leaf margin; A. indica: e) leaf morphology; j) leaf margin

Anisomeles tamilnadense Ramasubbu & Bechu sp. nov.

PUNNEN ABRAHAM BECHU, RAJU RAMASUBBU, EDWIN KIRUBAI DASS SPURGEON, PALANIVEL VENKATESH and KARUPPASAMY KALAISELVAN. 2026. Anisomeles tamilnadense (Lamiaceae), A New Species from Tamil Nadu, India.  Phytotaxa. 711(2); 202-208. DOI: doi.org/10.11646/phytotaxa.711.2.10 [2025-07-24]

 Researchgate.net/publication/393979625_Anisomeles_tamilnadense_a_new_species_from_Tamil_Nadu_India

academia.edu/164908527/Anisomeles_tamilnadense_a_new_species_from_Tamil_Nadu_India

[PaleoMammalogy • 2026] Cimolodon desosai • Cranial and Postcranial Remains of A New Species of Cimolodon (Multituberculata: Cimolodontidae) from the Upper Cretaceous (Campanian) El Gallo Formation of Baja California, México

Cimolodon desosai

Mantilla, Newbins, Fastovsky, Zhang, Montellano-Ballesteros, Alcántara & Chen, 2026

DOI: doi.org/10.1080/02724634.2026.2641109

Illustration by Andrey Atuchin

ABSTRACT

Late Cretaceous mammals from North America are predominantly known from isolated teeth and fragmentary jaws and from localities representing coastal lowlands along the Western Interior Seaway. Here, we report craniodental and associated postcranial remains of a new species of the cimolodontid multituberculate genus Cimolodon from the Upper Cretaceous (Campanian) El Gallo Formation of Baja California, México. The specimen was deposited along the Pacific Coast between 75.17 ± 0.30 Ma and 74.55 ± 0.18 Ma. It represents the most complete mammal known from the Mesozoic of México and one of the best known cimolodontan multituberculates from North America. Morphologically, the new species, Cimolodon desosai, is most like C. nitidus, but differences include upper anterior premolar shape, molar cusp formulae, and relative length proportions of the cheek teeth. Phylogenetic analysis supports placement of the new species within Cimolodon and Ptilodontoidea, but uncertainties remain regarding relationships among cimolodontan families. Using the craniodental and postcranial data, we quantitatively reconstruct C. desosai as a small-bodied (∼100 g), animal-dominated omnivore with a scansorial locomotor mode. With the new taxonomic occurrence, the El Gallo mammalian local fauna is now known from 16 specimens referred to three multituberculate species (Mesodma cf. M. formosa, ?Stygimys sp., and Cimolodon desosai), one metatherian (Pediomys sp.), and one eutherian (Gallolestes pachymandibularis). Although further sampling is needed, the mammalian local fauna presently shows greatest biogeographic affinities with the Terlingua local fauna of western Texas.

SYSTEMATIC PALEONTOLOGY

MAMMALIA Linnaeus, 1758

MULTITUBERCULATA Cope, 1884

CIMOLODONTA McKenna, 1975

PTILODONTOIDEA Sloan and Van Valen, 1965

CIMOLODONTIDAE McKenna, 1975

CIMOLODON Marsh, 1889

CIMOLODON DESOSAI, sp. nov.

Partial cranium of the holotype of Cimolodon desosai (IGM 14691).
Images are three-dimensional surface renderings from μCT scans in: A, anterior; B, stereo dorsal; C, stereo ventral; D, left lateral; and E, right lateral views of the partial cranium; and F, occlusal view of the right upper cheek tooth row in high magnification. Dashed white lines represent interpreted position of cranial bone sutures.

Abbreviations: al, anterior lamina; fr, frontal; iof, intraorbital foramen; mx, maxilla; na, nasal; naf, nasal foramen; otc, orbitotemporal canal; pa, parietal; pav, palatal vacuity; pmx, premaxilla; pop, postorbital process; sq, squamosal; zpm, zygomatic process of the maxilla. Scale bar equals 10 mm for A–E and 2 mm for F.

Cimolodon desosai on the tree with a fruit in its mouth. It was about the size of a golden hamster. It likely scampered on the ground and in the trees and ate fruits and insects.

Illustration by Andrey Atuchin

 

 

Gregory P. Wilson Mantilla, Isiah R. Newbins, David E. Fastovsky, Yue Zhang, Marisol Montellano-Ballesteros, Dalia García Alcántara and Meng Chen. 2026. Cranial and Postcranial Remains of A New Species of Cimolodon (Mammalia, Multituberculata, Cimolodontidae) from the Upper Cretaceous (Campanian) El Gallo Formation of Baja California, México. Journal of Vertebrate Paleontology. e2641109. DOI: doi.org/10.1080/02724634.2026.2641109  [22 Apr 2026]