Showing posts with label Bryophyte. Show all posts
Showing posts with label Bryophyte. Show all posts

Wednesday, November 13, 2024

[Entomology • 2024] Arria qinlingensis • A remarkable New Praying Mantis (Mantodea: Haaniidae) from China

 

Arria qinlingensis
Wu,  Zhang & Liu, 2024 


ABSTRACT
A new species of mantis, Arria qinlingensis sp. n., is described based on both male and female specimens collected from Qinling Mt., China. This new species has similar external morphology to A. leigongshanensis (Ge and Chen, 2008); these two species represent a mysterious evolutionary clade in the genus Arria Stål, 1877. The discovery of this moss-mimicking mantis species represents the northernmost distribution of the genus Arria. Illustrations and ecological images of Arria species in China are presented, and the images of the final-instar nymph for both sexes of A. leigongshanensis (Ge and Chen, 2008) and the ootheca of Arria qinlingensis sp. n. are illustrated. The distribution of the two species in China is discussed and mapped.
 
KEYWORDS: Dictyoptera, morphology, taxonomy, new species, Oriental Region

 




Chao Wu, Jia-Zhi Zhang and Chun-Xiang Liu. 2024. Arria qinlingensis sp. n., A remarkable New Praying Mantis from China (Mantodea: Haaniidae). Journal of Natural History.  58(9-12); 408-421. DOI: doi.org/10.1080/00222933.2024.2319894 
佛坪保护区发现了秦岭缺翅螳!

Tuesday, July 2, 2024

[Botany • 2024] Gentiana betongensis (Gentianaceae) • A New Species from tropical montane sphagnum bog in Peninsular Thailand

 

Gentiana betongensis  J.Wai,

in Sae Wai, 2024.  
ดอกหรีดเบตง  ||  DOI: 10.11646/phytotaxa.633.1.7
 
Abstract
Gentiana betongensis is described as a new species from Thailand. It was discovered in tropical montane sphagnum bog of the High Plateau in Betong District, Yala Province near the Thai-Malay Border. The new species is morphologically most similar to G. malayana in having erect, simple or few-branched stems, but differs markedly in having smaller flowers, triangular-ovate, acute corolla lobes, and long, recurved and coiled stigma lobes. This paper provides morphological description, illustration, photographs, distribution map, ecological data, reproductive biology, DNA barcode sequence, vernacular name, conservation status, a key to the species of Gentiana in Thailand, Peninsular Malaysia and Borneo, and a special note on conservation perspectives.

Eudicots, Betong, Malesian flora, morphology, new taxon, taxonomy




Jarearnsak Sae Wai. 2024. Gentiana betongensis (Gentianaceae), A New Species from tropical montane sphagnum bog in Peninsular Thailand.  Phytotaxa. 633(1); 60-67. DOI: 10.11646/phytotaxa.633.1.7
  Researchgate.net/publication/377109464_Gentiana_betongensis_a_new_species_from_tropical_montane_sphagnum_bog_in_Peninsular_Thailand

Thursday, May 16, 2024

[Entomology • 2021] Arria muscoamicta • First Record of the Genus Arria (Mantodea: Haaniidae: Arriini) from Thailand, with the Description of A New Species of Moss-dwelling Praying Mantis


 Arria muscoamicta Unnahachote & Shcherbakov, 

in Unnahachote, Shcherbakov et Pinkaew, 2021. 
photos by W. Pathomwattananuruk & W. Khaikaew. 

Abstract
Arria muscoamicta Unnahachote & Shcherbakov, sp. nov. is described based on a male from central Thailand. This is the first record of Arria Stål, 1877 from the country. The new species is closely allied to A. leigongshanensis (Ge & Shen, 2008) from China, differing by the absence of prozonal tubercles, the elongated pronotum, nine tibial anteroventral spines, and the truncated hindwings. The new species is a moss-camouflaging mantis living at high altitude. The taxonomic problems of the genus are briefly discussed.

Keywords: Camouflage, predatory insect, Southeast Asia, taxonomy

 Arria muscoamicta sp. nov. in life aspect
 A adult male (the holotype), dorsal view B adult male (the holotype), lateral view C male nymph.
A, B W. Pathomwattananuruk, published with permission C W. Khaikaew, published with permission.

Systematic accounts
Order Mantodea Burmeister, 1838
Family Haaniidae Giglio-Tos, 1915
Subfamily Haaniinae Giglio-Tos, 1915

Tribe Arriini Giglio-Tos, 1919

Genus Arria Stål, 1877

Arria muscoamicta Unnahachote & Shcherbakov, sp. nov.

 
Differential diagnosis: 
A. muscoamicta sp. nov. is similar to the type species of Arria, A. cinctipes, in foreleg armament and shape of the prothorax and wings; it fits the current concept of the genus Arria (but see Discussion).
Arria muscoamicta sp. nov. can be distinguished from the most similar species, A. leigongshanensis, by the following characters: 1) pronotum distinctly longer; MzL/PzL = 1.97 [vs MzL/PzL = 1.24], 2) prozone without distinct pair of conical spines posteriorly [vs with distinct pair of conical spines posteriorly, anteriad of supracoxal sulcus], 3) foretibia have nine anteroventral spines [vs 11–13 anteroventral spines], 4) apical lobe of hindwing almost truncated [vs more or less parabolic].
Arria muscoamicta sp. nov. can also be easily distinguished from A. cinctipes by the following characters: 1) six tibial posteroventral spines [vs seven tibial posteroventral spines], 2) lack of a pair of small conical tubercles in prozone posteriorly [presence of a pair of small conical tubercles in prozone posteriorly]; from A. meghalayensis by six tibial posteroventral spines [vs seven tibial posteroventral spines]; from A. oreophilus by following characters: 1) present of conical tubercles on dorsal surface of pronotum [vs lack of conical tubercles, relatively smooth in male], 2) forewing not narrows distally [vs forewing narrows distally]; from A. sticta and A. pallida by the apex of hindwing more or less truncate [vs pointed apex].

Etymology: The name of the species means “clothed by moss” in Latin and refers to the moss-like colouration and morphology of the adults and especially the nymphs.


 Thornthan Unnahachote, Evgeny Shcherbakov and Nantasak Pinkaew. 2021. First Record of the Genus Arria (Mantodea, Haaniidae, Arriini) from Thailand, with the Description of A New Species of Moss-dwelling Praying Mantis. ZooKeys. 1028: 49-60. DOI: 10.3897/zookeys.1028.62347

Saturday, January 6, 2024

[Botany • 2023] Kahakuloa operculispora • A New Hawaiian Simple Thalloid Liverwort in A New Genus and Family, Kahakuloaceae (Fossombroniales)


Kahakuloa operculispora A.V.Freire, Judz., Cargill, L.L.Forrest & Gradst.,  

Freire, Judziewicz, Cargill, Forrest, Gradstein, Oppenheimer, Pezzillo et Sepsenwol, 2023. 

Abstract
Kahakuloa operculispora, a new simple thalloid liverwort endemic to Hawaiʻi, so far only known from high elevation bogs in western Maui, is described and illustrated. The thallus has prominent reddish-purple rhizoids, uniseriate ventral slime papillae and lacks scales. The plants are dioicous; male plants have antheridia sunken in several rows of dorsal chambers, subtended by scales, while female plants have clustered archegonia enclosed by thick, barrel-shaped involucres that develop serially at the plant apex, before fertilization, and are arranged in a single dorsal row at maturity; perichaetial scales and pseudoperianths (defined as involucres developing after fertilization) are lacking. The capsules are spherical, 2−3 stratose, and dehisce irregularly; the spores are areolate and have a unique operculum-like disk on the proximal face. Molecular and morphological evidence supports placement of the plant in a new genus and family in the order Fossombroniales, suborder Fossombroniineae. Kahakuloa is the first liverwort genus endemic to Hawaiʻi, and Kahakuloaceae is the only known endemic Hawaiian land plant family.

Keywords: Marchantiophyta, Kahakuloa, Hawaii, Fossombroniineae, liverwort



Kahakuloaceae A.V.Freire, Judz., Cargill, L.L.Forrest & Gradst., new family

Kahakuloa operculispora A.V.Freire, Judz., Cargill, L.L.Forrest & Gradst. new genus and species 

Diagnosis:—Kahakuloa operculispora differs from all other members of Fossombroniales in having numerous, apically developing (pre-fertilization), inflated, barrel-shaped involucres, each protecting a small cluster of archegonia; in having sunken antheridia in several rows of dorsal chambers protected by scales; and in having spores with aproximal operculum-like disk. The genus is morphologically most similar to Allisonia in its lack of ventral scales, presence of long, reddish-purple rhizoids, and ventral hairs tipped with slime papillae; however,  Allisonia differs in having archegonia in a single cluster enclosed by partially connate scales, by having superficial antheridia, by having a true calyptra rather than a shoot calyptra; and by having cristate rather than areolate spores that lack an operculum-like disk.


A. Virginia Freire, Emmet J. Judziewicz, D. Christine Cargill, Laura L. Forrest, S. Robbert Gradstein, Hank L. Oppenheimer, Zachary Pezzillo and Sol Sepsenwol. 2023. Kahakuloa operculispora, A New Hawaiian Simple Thalloid Liverwort in A New Genus and Family, Kahakuloaceae (Fossombroniales). Bryophyte Diversity and Evolution. 46(1); 10-34. DOI: 10.11646/bde.46.1.4

Wednesday, August 30, 2023

[Botany • 2023] A New Subfamily Calasterelloideae and New Genus Calasterella for a phylogenetically and morphologically distinct member of the Aytoniaceae


Calasterella californica (Hampe ex Austin) D.G.Long & T.X.Zheng, 

in Long et Zheng, 2023.

 Abstract
Based on a phylogenetically and morphologically distinct species, a new genus Calasterella is established. A new subfamily, Calasterelloideae, is also proposed to contain this genus.

Keywords: Marchantiales, taxonomy, systematics, bryophytes 

Calasterella californica (Hampe ex Austin) D.G.Long & T.X.Zheng
(≡ Asterella californica (Hampe ex Austin) Underw.).  

 Calasterella californica (Hampe ex Austin) D.G.Long & T.X.Zheng.
 A: Immature carpocephalum from below showing deeply cleft involucres with overlapping margins of cleft. B: Mature carpocephalum from below showing pseudoperianths and dehisced sporophyte with lemon-yellow spores.
C: Scanning Electron Micrographs of the spores, distal face. D: Scanning Electron Micrographs of the spores, proximal face.
Arrow heads: involucre. Arrow: spores. 
Scale bars: A, 2 mm; B, 1 mm; C, D: 20 μm. [A: D.G. Long 45940 (E). B: D.G. Long 45333 (E). C, D: D. G. Long et al. 44666 (E)]
 
Calasterelloideae T.X.Zheng & D.G.Long subfam. nov.  

includes one genus, Calasterella D.G.Long & T.X.Zheng, gen. nov.

Diagnosis: Differs from Aytonioideae and Reboulioideae by the following combination: dioicous sexuality; strictly dichotomous branching pattern; ventral tissue with mucilage cavities; up to four appendages of ventral scale; deeplylobed female receptacle with pseudoperianths and involucre cleft to base; lemon-yellow spores with conspicuous trilete ridges, prominent equatorial wing, similar ornamentation on proximal and distal surfaces, lacking large areolae but with fine network of alveolae.

Type: Calasterella D.G.Long & T.X.Zheng, gen. nov.

Type species: Calasterella californica (Hampe ex Austin) D.G.Long & T.X.Zheng comb. nov. 
(≡ Fimbraria californica Hampe ex Austin, Hepat. bor.-amer. 33, 1873). 
≡ Asterella californica (Hampe ex Austin)

Etymology: The genus is named by the combination of the abbreviation of its main distribution region “California”,and the previous placement “Asterella”. 


Calasterella californica (Hampe ex Austin) D.G.Long & T.X.Zheng, comb. nov.

  
David G. Long and Tian-Xiong Zheng. 2023. A New Subfamily Calasterelloideae and New Genus Calasterella for a phylogenetically and morphologically distinct member of the Aytoniaceae.  Phytotaxa. 606(3); 225-230. DOI: 10.11646/phytotaxa.606.3.6

Thursday, December 15, 2022

[Entomology • 2022] Skejotettix netrajyoti • A New Genus and A New Groundhopper Species (Orthoptera: Tetrigidae) from Nepal


Skejotettix netrajyoti
Subedi, 2022 

 
Abstract
This paper describes one new genus from Nepal, Skejotettix gen. nov., and one new species of this new genus, S. netrajyoti gen. et sp. nov. and assigns one species to this new genus, S. muglingi (Ingrisch, 2001b) comb. nov. from Coptotettix Bolívar, 1887. The genus is morphologically close to Ergatettix Kirby, 1914 from Nepal, Lamellitettigodes Günther, 1939 from SE Asia, and Hainantettix Deng, 2020 (including H. angustivertex (Zha et Peng, 2021) comb. nov. and H.  hainanensis (Liang, 2002) comb. nov.) from Hainan, China. New distribution records have been provided to Coptotettix. Endemic to Nepal, the genus Skejotettix gen. nov. shares two different habitat types (subtropical Sal forest for S. netrajyoti gen. et sp. nov., and river/stream/pond bank for S. muglingi (Ingrisch, 2001b) comb. nov.).  

Keywords: Orthoptera, Josip Skejo, Himalayas, Tetrigidae, pygmy grasshopper, Hainantettix, forest, stream




 Skejotettix netrajyoti gen. et sp. nov. in natural habitat:
A-B-Adult ♂; C-D-Adult ♀; E-Early instar nymph ♂; F-Early instar nymph ♀.

 Moss (Plantae: Bryophyta), a food source of Skejotettix netrajyoti gen. et sp. nov.:
 A-Mylia taylorii (Hook.) Gray, 1821; B, D-Unidentified moss; C-Fissidens sp.; E-Adult ♀ feeding on the moss in natural habitat; F-Adult ♂ feeding on the moss in natural habitat.


Madan Subedi. 2022. A New Genus and A New Groundhopper Species from Nepal (Orthoptera: Tetriginae: Skejotettix netrajyoti gen. et sp. nov.). Zootaxa. 5205(1); 35-54. DOI: 10.11646/zootaxa.5205.1.3 


Wednesday, April 6, 2022

[Arachnida • 2021] Muscopilio onod • Phylogenetic Relationships of A New Genus of Basibiont Harvestmen (Opiliones: Agoristenidae) from Andean Rainforests, Central Colombia


 Muscopilio onod 
Villarreal & García, 2021


Abstract
Based on the most recently published morphological cladistic analysis of the family Agoristenidae, the taxonomic position of an undescribed harvestman species was evaluated. According to the results of an updated phylogenetic analysis, the description of a new monotypic genus is proposed to accommodate this new species. The diagnostic characters of the new genus are: free tergites II and III with three large tubercles, and femora and tibiae of legs II–IV with longitudinal rows of conspicuous tubercles. Muscopilio onod gen. et sp. nov. inhabits Andean rainforests in Cundinamarca department, Central Colombia. Remarkably, almost all individuals collected in the field had at least three families of bryophytes, including mosses (Leucomiaceae) and liverworts (Plagiochilaceae, Lejeuneaceae), growing on their legs, and suggesting a mutualistic relationship between epizoic organisms and harvestmen.

 Keywords: Andes, Bryophytes, Epibiont, Laniatores, Leiosteninae, Mutualism


 Drawings of  Muscopilio onod gen. nov. and sp. nov. 
male holotype (MNRJ 19772) and female paratype (MNRJ 60284).
 (A) Habitus, dorsal view. (B) Habitus, lateral view. (C) Female, habitus, lateral view, showing sexual dimorphism in ocularium shape and size and chelicerae. (DeG). Leg IV of male, in dorsal, ventral, retrolateral and prolateral views. Scale bars: 1 mm.

 SEM images of the body of  Muscopilio onod gen. nov. and sp. nov. (MNRJ 60284), male paratype.
(A) Habitus, dorsal view. (B) Habitus, dorsolateral view. (C) Ocularium, dorsolateral view. (D) Habitus, ventrolateral view. (E) Anal operculum and sternites, ventrolateral view. (F). Coxa I, ventrolateral view. (G). Spiracle, ventral view. (H). Cuticle, mesotergal area I. (I) Setiferous tubercle, area III, detail.
Scale bars: A,B,D,E = 500 um; D = 200 um; C,FeH = 100 um; I = 20 um.

 Muscopilio onod gen. nov. and sp. nov. (MNRJ 19772), male holotype.
 (A) Habitus, panoramic view. (B) Habitus, dorsal view. (C) Habitus, lateral view. (D) Habitus, frontal view. Photographs of epizoids on legs of some paratypes (ICN-Ao-1972). (E) Hyphae of fungus on femur II. (F) Liverwort on femur III. (G) liverwort on tibia IV.
Scale bars: A = 3 mm; B-G = 1 mm.

Fig. 9. Live specimens of Muscopilio onod gen. nov. and sp. nov. from Cundinamarca:
 (A) Parque Natural Chicaque, (B, D) Parque Natural Los Tunos (in D, the specimen is under UV light), (C) Reserva de la Sociedad Civil Tenasucá.
Pictures by: Ken-ichi Ueda (A), Andrés F. García (B, D) and Osvaldo Villarreal (C).

Muscopilio Villarreal & García gen. nov.

Type species. Muscopilio onod sp. nov., here designated by monotypy.

Etymology. From the Latin words muscus (= moss) + pre-existing genus Opilio. Gender masculine.


Muscopilio onod Villarreal & García sp. nov
 
  Etymology: In the fictional Sindarin language, created by J.R.R. Tolkien, Onod (plural Onodrim) is the name given to the giant tree-like beings, also known as Ents. For us, the new species, greenish in color and with the legs covered by bryophytes, resembles an Onod. Noun in apposition.

 
 Osvaldo Villarreal and Andrés F. García. 2021. On the Phylogenetic Relationships of Muscopilio, A New Andean Genus of Basibiont Harvestmen (Opiliones: Agoristenidae). Zoologischer Anzeiger. 292; 150-162. DOI: 10.1016/j.jcz.2021.03.006


Sunday, October 10, 2021

[Botany • 2021] Corybas papillatus (Orchidaceae) • A New Orchid Species from Peninsular Thailand


Corybas papillatus Inuthai, Chantanaorr. & Suddee, 

in Inuthai, Chantanaorrapint, Poopath, ... et Suddee, 2021. 
เอื้องอัญมณีศรีธรรมราช ||  DOI: 10.3897/phytokeys.183.71167
Photographs by W. Kiewbang.

Abstract
A new species, Corybas papillatus, is described and illustrated from peninsular Thailand. The new species is easily recognized through a combination of the following characters: the purplish flower, the rounded apex of the dorsal sepal, the outer surface of dorsal sepal covered with irregular papillae in the upper half, the lateral sepals adnate laterally at the base to the connate petals, the V-shaped throat, the labellum bearing short hairs, dentate to erose labellum margins, and well-developed conical spurs. A key to the species of Corybas in Thailand is presented.

Keywords: Helmet orchid, Khao Luang National Park, montane forest, Thai-Malay Peninsula

Figure 2. Corybas papillatus Inuthai, Chantanaorr. & Suddee
A whole plant with flower and tubers B plant with immature flower C mature flower, lateral view D plant with immature fruit E floral bract, F, G dorsal sepal F ventral view G lateral view H lateral sepals and petals I labellum J, K column, J lateral view, K front view.
 Drawn by J. Inuthai.

Figure 1. Corybas papillatus Inuthai, Chantanaorr. & Suddee
 A, B plants in natural habitat, on humus associated with Bazzania sp. and Acroporium sp. C plant with immature fruit D, E flowers D front view E lateral view F immature flower G underground parts with tubers.
Photographs by W. Kiewbang.

Corybas papillatus Inuthai, Chantanaorr. & Suddee, sp. nov.
 
Diagnosis: Similar to Corybas villosus J. Dransf. & Gord. Sm., but differs in the absence of dorsal sepal keel and the lateral sepals adnate laterally at the base to the connate petals.

Habitat and ecology: The new species was found growing amongst bryophytes (Fig. 1A–C), such as Acroporium sp., Bazzania sp., and Schistochila aligera (Nees & Blume) J.B. Jack & Steph., on humus in shade in montane forest, ca. 1,700 m above sea level.

Distribution Corybas papillatus is only known from the type locality (Fig. 3), however, it may also occur in other areas in peninsular Thailand with similar vegetation type. 

Etymology The specific epithet ‘papillatus’ alludes to occurrence of irregular papillae in upper portion of abaxial (dorsal) surface of dorsal sepal.


 Janejaree Inuthai, Sahut Chantanaorrapint, Manop Poopath, Naiyana Tetsana, Wittawat Kiewbang and Somran Suddee. 2021. Corybas papillatus (Orchidaceae), A New Orchid Species from peninsular Thailand. PhytoKeys. 183: 1-7. DOI: 10.3897/phytokeys.183.71167

    


Wednesday, February 10, 2021

[Fungi • 2020] Bryostroma popei • A New Bryophilous Ascomycete (Ascomycota: Dothideomycetes) from the British Isles, with A Worldwide Key to the Genus Bryostroma


Bryostroma popei Greiff & P.F.Cannon.

in Greiff & Cannon, 2020. 

Summary
The bryophilous Bryostroma popei is a novel ascomycete that infects the pleurocarpous moss Leptodictyum riparium. The morphology of the new species is described, illustrated and compared to other species in the genus. A key to the nine species of Bryostroma is provided.

Key Words: intracellular hyphae, muscicolous, parasitism



Bryostroma popei Greiff & P.F.Cannon.
A ascomata on decaying stem of Leptodictyum riparium; B section through ascoma, showing the oblique basal stromatic peg (arrow); C asci, ascospores and degenerating interascal tissue, mounted in water; D ascus and ascospores mounted in warmed lactic acid, showing the spore ornamentation.

Bryostroma popei Greiff & P.F.Cannon, sp. nov. 
(Dothideomycetes, incertae sedis). 
Type: UK, Isle of Wight, Havenstreet, Briddlesford Copse, on decaying stems of Leptodictyon riparium, UK grid reference SZ556900, 26 Sept. 2019, G. R. L. Greiff. 
Holotype (K(M) 255204). [Index Fungorum IF557422].

HABITAT. Riparian ancient woodland; alt. approx. 15 m. The host plant Leptodictyum riparium (Hedw.) Warnst. (Amblystegiaceae, Hypnales, Bryidae, Bryophyta) was growing in a seasonal stream.

ETYMOLOGY. popei, in honour of the Isle of Wight botanist, mycologist and excellent all-round naturalist Dr Colin R. Pope.

 
George R. L. Greiff and Paul F. Cannon. 2020. Bryostroma popei — A New Bryophilous Ascomycete from the British Isles, with A Worldwide Key to the Genus Bryostroma. Kew Bulletin. 75: 60. DOI: 10.1007/s12225-020-09917-0

Thursday, December 31, 2020

[Fungi • 2020] Amended Description of the rarely reported Bryophilous Ascomycete Octospora svrcekii (Pyronemataceae) with Notes on the Phylogeny of the Section Wrightoideae


 Octospora svrcekii Benkert (1998)

in Sochorová, Matočec, Kušan, et al., 2020.
 
Abstract
The bryophilous ascomycete Octospora svrcekii, belonging to the section Wrightoideae, has so far been reported from only three localities in the world. New collections from Albania, Austria, Croatia, France, Slovakia and Spain have enabled a better understanding of its variability, ecology, distribution and phylogenetic relationships with other taxa within the section Wrightoideae. Octospora svrcekii was always found associated with Cratoneuron filicinum growing in constantly humid habitats (brooks, rivers or waterfalls), on calcareous bedrock. A species description based on both living and dead material is provided and compared with previous observations. A phylogenetic analysis of the section Wrightoideae, performed using the EF1α, SSU rDNA and LSU rDNA loci, revealed that Octospora svrcekii forms a monophyletic group with O. wrightii, O. erzbergeri, O. hygrohypnophila and O. americana, all of which are characterised by subglobose to broadly ellipsoid ascospores ornamented with isolated warts, and infect mosses in the order Hypnales, inducing galls on their rhizoids. Based on the molecular analysis, O. orthotrichi and O. affinis, formerly also considered as members of the section Wrightoideae, do not belong to the group.

Keywords: Bryophilous fungi, fungal systematics, galls, pleurocarpous mosses, vital taxonomy, Fungi



Zuzana Sochorová, Neven Matočec, Ivana Kušan, Lukáš Janošík, Jan Eckstein, Marcel Vega, Armin Mešić, Michaela Sedlářová, Rubén Martínez-Gil and Michal Sochor. 2020. Amended Description of the rarely reported Bryophilous Ascomycete Octospora svrcekii (Pyronemataceae) with Notes on the Phylogeny of the Section Wrightoideae. Phytotaxa. 475(1); 1–17. DOI: 10.11646/phytotaxa.475.1.1

Sunday, January 6, 2019

[Botany • 2018] Colura sigmoidea • The Genus Colura section Gamolepis (Lejeuneaceae, Marchantiophyta) in Malesian Region, with the Description of A New Species


Colura sigmoidea  Sangratt., Chantanaorr. & R.L.Zhu

in Sangrattanaprasert, Chantanaorrapint & Zhu, 2019. 

Abstract
The taxonomic account of the genus Colura sect. Gamolepis in the Malesian region is presented based on fresh materials from field surveys and herbarium specimens. Five species are recognised including: C. cristata, C. meijeri, C. valida, C. verdoornii, and one new species, C. sigmoidea, described and illustrated. The new species is similar to C. cristata, but differs in having dioicous sexuality, ovate to lanceolate lobule sac ending with a small apical crest (consisting of 3–5 cells), small valve consisting of 30–40 cells and basal median cells of valve adnate with hinge cells forming a sigmoid curve in outline. A key to species, taxonomic descriptions and illustrations are provided; ecology and geographical distribution of the species are noted.

Keywords: Colura, Colura sigmoidea, leafy liverwort, Malesian region, sect. Gamolepis, Bryophytes


Colura sigmoidea  Sangratt., Chantanaorr. & R.L.Zhu 

    

    

  Jiroat Sangrattanaprasert, Sahut Chantanaorrapint and Rui-Liang Zhu. 2019. The Genus Colura section Gamolepis (Lejeuneaceae, Marchantiophyta) in Malesian Region, with the Description of Colura sigmoidea.  Phytotaxa. 387(1); 40–54. DOI: 10.11646/phytotaxa.387.1.3