Thursday, February 28, 2019

[Hexapoda • 2019] Coecobrya sirindhornae • the Most Highly Troglomorphic Collembola (Entomobryidae) in Southeast Asia

Coecobrya sirindhornae
Jantarit, Satasook & Deharveng, 2019

The most highly troglomorphic Collembola of Southeast Asia, Coecobrya sirindhornae sp. n., is described from a cave in Satun province, Thai Peninsula. It is characterised by its large size, extremely elongated antennae, relatively long legs and furca, reduced macrochaetotaxy, very long and slender claw, pointed tenent hair, four sublobal hairs on outer maxillary lobe, and the absence of eyes and pigmentation. A checklist of Thai Coecobrya species and a key to the troglomorphic species of Thailand are provided. Troglomorphy and conservation of cave habitats in the area are discussed.

Keywords: new species, peninsular Thailand, subterranean environment, taxonomy, troglomorphy

Figure 1. Coecobrya sirindhornae sp. n. A–D Habitus

E–F Two morphological types of cave Coecobrya in Thailand E Coecobrya phanthuratensis Zhang & Jantarit, 2018; normal form with short antennae, appendages and small size F Coecobrya polychaeta Zhang & Nilsai, 2017; troglomorphic form with long antennae and appendages with large body size
and G Coecobrya sirindhornae sp. n., highly troglomorphic characters with extremely long antennae and appendages and also large body size.

Coecobrya sirindhornae sp. n.
A–B Habitus, C. sirindhornae sp. n., highly troglomorphic characters with extremely long antennae and appendages and also large body size. 

E–F Two morphological types of cave Coecobrya in Thailand 
Coecobrya phanthuratensis Zhang & Jantarit, 2018; normal form with short antennae, appendages and small size F Coecobrya polychaeta Zhang & Nilsai, 2017; troglomorphic form with long antennae and appendages with large body size 
and G Coecobrya sirindhornae sp. n., highly troglomorphic characters with extremely long antennae and appendages and also large body size.

Class Collembola Lubbock, 1873
Order Entomobryomorpha Börner, 1913

Family Entomobryidae Tömösváry, 1882
Subfamily Entomobryinae Schäffer, 1896

Genus Coecobrya Yosii, 1956
Coecobrya sirindhornae sp. n.

Figure 2. Coecobrya sirindhornae sp. n. continued.
A Distal part of Ant. II dorsally of left antenna B Ant. III organ of left side C Distal part of Ant. IV with subapical organite D Ratio of antennal length E Clypeal chaetae F Prelabral and labral chaetae G Labial palp H Outer maxillary lobe I Mandibles J Ventro-distal complex of labrum K Chaetae of labial basis and ventral chaetotaxy of head.

Figure 7. Distribution of three troglomorphic Coecobrya species in Satun caves, all located in lowland areas.

Ecology: Coecobrya sirindhornae sp. n. is restricted to the dark zone of the cave where it has been found, in the oligotrophic environment of a small chamber, on muddy ground and wet rock walls. The chamber is connected to a narrow steep hole. Small puddles are present in the chamber and water is dripping from the ceiling. Muddy ground surface is flooded during rainy season. Some individuals were found feeding on a cricket corpse. They were quick jumping and moved rapidly. The species is found only in that chamber where humidity is at saturation, and temperature is constant (23‒24 degrees Celsius). The population seems rather limited (only 26 specimens were collected from five attempts, each time one hour collecting by 2 people). Small (young) individuals were less numerous and not collected.

Etymology: This species is named to honour Her Royal Highness Princess Maha Chakri Sirindhorn, who is passionately interested in natural history and plays an important role in promoting the conservation of biodiversity and the environment of Thailand.

 Sopark Jantarit, Chutamas Satasook and Louis Deharveng. 2019. Coecobrya sirindhornae sp. n., the Most Highly Troglomorphic Collembola in Southeast Asia (Collembola, Entomobryidae). ZooKeys 824: 21-44.  DOI: 10.3897/zookeys.824.31635


[Entomology • 2019] Strong Radiation in Caves of the Central Dinarides: Seven New Species of Thaumastocephalus Poggi et al., 2001 [Endogean and Cavernicolous Coleoptera of the Balkans. XVIII]

Thaumatocephalus bilandzijae 
Hlaváč, Bregović & Jalžić, 2019

Seven new species of the cavernicolous and anophthalmous genus Thaumastocephalus Poggi, Nonveiller, Colla, Pavićević & T. Rađa, 2001 are described: T. bilandzijae sp. n., T. kirini sp. n., T. marsici sp. n., T. rujnicensis sp. n., T. slavkoi sp. n. and T. troglavi sp. n. from Croatia and T. dahnae sp. n. from Bosnia and Herzegovina. Aedeagi of all species are illustrated. A key to all species is provided. The records of all specimens of the genus treated here are given, and their distributions are discussed and shown on maps. The distribution of all genera of cavernicolous Pselaphinae in the Dinarides is discussed.

Keywords: Coleoptera, Thaumastocephalini, taxonomy, biospeleology, Croatia, Bosnia and Herzegovina, zoogeography

 Thaumatocephalus bilandzijae sp. n., habitus in situ.
 (photo Alen Kirin) 

Peter Hlaváč, Petra Bregović and Branko Jalžić. 2019. Endogean and Cavernicolous Coleoptera of the Balkans. XVIII. Strong Radiation in Caves of the Central Dinarides: Seven New Species of Thaumastocephalus Poggi et al., 2001 (Staphylinidae: Pselaphinae). Zootaxa. 4559(1); 90–110. DOI:  10.11646/zootaxa.4559.1.3

[Ichthyology • 2019] Austrolebias ephemerus • A New Annual Fish (Cyprinodontiformes: Rivulidae) from the upper Rio Paraguai basin, Brazilian Chaco

Austrolebias ephemerus
Volcan & Severo-Neto, 2019

A new species of Austrolebias belonging to the A. bellottii species group is herein described from the Brazilian Chaco, Mato Grosso do Sul state, constituting the northernmost record of the genus in Brazil, as well as the first record of this genus on the left bank of the Rio Paraguai. The new species is distinguished from all other species of the A. bellottii group by the following combination of characters: pectoral fin posterior margin reaching vertical between base of 4th and 7th anal fin rays in females, a high number of gill rakers in the first branchial arch, a lower head width in both sexes, and a small number of neuromasts in the preopercular series. Additionally, we provide information on ecology and the conservation status of the new species.

Keywords: Pisces, Austrolebias bellottii species group, seasonal pool, conservation, killifish

Matheus Vieira Volcan and Francisco Severo-Neto. 2019. Austrolebias ephemerus (Cyprinodontiformes: Rivulidae), A New Annual Fish from the upper Rio Paraguai basin, Brazilian Chaco.  Zootaxa. 4560(3); 541–553.  DOI: 10.11646/zootaxa.4560.3.6

[Invertebrate • 2019] Revision of Condyloderes (Kinorhyncha, Cyclorhagida) Including Description of Condyloderes shirleyi sp. nov.

Condyloderes paradoxus Higgins, 1969

in Neuhaus, Zotto, Yamasaki & Higgins, 2019.

The description of a new representative of the species-poor genus Condyloderes Higgins, 1969 from the Northeast Pacific (Alaska) is reported. The analyzed specimens of Condyloderes shirleyi sp. nov. showed a significant variation of numerous morphological characters, along with female-specific traits known also from other congeneric species. These findings stimulated the re-investigation of the type material of the six species of Condyloderes described so far, i.e., C. kurilensis Adrianov & Maiorova, 2016, C. megastigma Sørensen, Rho & Kim, 2010b, C. multispinosus (McIntyre, 1962) Higgins, 1969, C. paradoxus Higgins, 1969, C. setoensis Adrianov, Murakami & Shirayama, 2002, and C. storchi Higgins, 2004 in Martorelli & Higgins, 2004. Our study allowed to reveal various morphological novelties and to emend the diagnosis of these species and of the genus Condyloderes. Furthermore, our analysis led to synonymize C. megastigma with C. setoensis. The results of our investigation about the significant variation in C. shirleyi sp. nov. raise a wider question on species identity within Kinorhyncha, underscoring the necessity, if possible, to describe new species from a higher number of specimens and to concentrate on the morphological variation of the going-to-be-described species.

Keywords: Centroderidae, intraspecific variation, meiofauna, new species, taxonomy

Holotype males of Condyloderes paradoxus (USNM W37460). 

 Birger Neuhaus, Matteo Dal Zotto, Hiroshi Yamasaki and Robert P. Higgins. 2019. Revision of Condyloderes (Kinorhyncha, Cyclorhagida) Including Description of Condyloderes shirleyi sp. nov. Zootaxa. 4561(1); 1-91. DOI: 10.11646/zootaxa.4561.1.1

[Cnidaria • 2019] First Inventory of Sea Anemones (Actiniaria) from La Paz Bay, southern Gulf of California (Mexico)

Anthopleura dowii Verrill, 1869

Barragán, Sánchez & Rodríguez, 2019.

Sea anemones from the Mexican Pacific are poorly known. We report and redescribe eight species of sea anemones from La Paz Bay in the southern Gulf of California, Mexico. As a result of this inventory, we validate records for 30 species from the Mexican Pacific, 23 of them from the Gulf of California and 15 of those present in La Paz Bay. We provide taxonomic diagnoses, images of internal and external anatomy, size ranges and types of cnidae, and geographic and bathymetric distribution, and discuss the taxonomic diagnostic characters for each species. This study is the first illustrated inventory of sea anemones from La Paz Bay.

Keywords: Coelenterata, Anthozoa, Hexacorallia, Taxonomy, Mexican Pacific Ocean

Anthopleura dowii Verrill, 1869

Yamaly Barragán, Carlos Sánchez and Estefanía Rodríguez. 2019. First Inventory of Sea Anemones (Cnidaria: Actiniaria) from La Paz Bay, southern Gulf of California (Mexico). Zootaxa. 4559(3); 501–549.  DOI:  10.11646/zootaxa.4559.3.4

[Crustacea • 2019] Colomastix trispinosa • First Record of the Suborder Colomastigidea (Amphipoda) from Brazilian Waters, with Description of A New Species of Colomastix Grube, 1861

Colomastix trispinosa 
Silvany, Alves & Senna, 2019

The suborder Colomastigidea consists essentially of small commensal amphipods and, to the date, no species are known from Brazilian waters. Here, a new species (Colomastix trispinosa sp. nov.) of the genus Colomastix is described from the Northeastern Brazilian coast, Ceará state. The new species is distinguished from the others in the genus especially by the male morphology of the palm of gnathopod 2 and the apex of inner ramus of uropod 1, as well as for the combination of other characters. In addition, it is the first Atlantic species to have a pleated apex on dactylus of female gnathopod 2.

Keywords: Taxonomy, Crustacea, SW Atlantic, Ceará state, Brazil

Colomastix trispinosa sp. nov.

Liz Silvany, Jessika Alves and André R. Senna. 2019. First Record of the Suborder Colomastigidea (Amphipoda) from Brazilian Waters, with Description of A New Species of Colomastix Grube, 1861. Zootaxa. 4563(1); 149–162. DOI:  10.11646/zootaxa.4563.1.8

Wednesday, February 27, 2019

[Botany • 2019] Taxonomy, Evolution and Phylogeography of the Genus Helonias (Melanthiaceae) Revisited

Helonias bullata L.

in Tanaka, 2019.

This paper reviews the taxonomy, evolution and phylogeographic aspects of the genus Helonias L. sensu lato, including Ypsilandra and Heloniopsis (Melanthiaceae) that are basically similar in many morphological and ecological characters to Helonias sensu stricto. It includes three parts, I–III. In Part I, characters and their variation are examined to determine generic traits and diversity. In Part II, an attempt is made to taxonomically determine diversity among individuals. Taxonomic conclusions and revisions are principally the following: Helonias comprises 12 species, which are classified into two sections, H. sect. Helonias and H. sect. Heloniopsis comb. & stat. nov. Helonias sect. Helonias consists of H. bullata only; H. sect. Heloniopsis comprises two subsections, H. subsect. Ypsilandra comb. & stat. nov. and H. subsect. Heloniopsis. Helonias subsect. Ypsilandra is composed of five species previously published under the genus Ypsilandra. Helonias subsect. Heloniopsis consists of two series, H. ser. Umbellatae ser. nov., with three species from Taiwan and the Nansei Islands (incl. the Ryukyus), Japan, and H. ser. Heloniopsis, with three species from Japan, Korea and E. Russia (southern Sakhalin). Helonias yunnanensis var. mesostyla is described as a new variety from N Myanmar and SW China (NW Yunnan). The new combinations Helonias koreana (from Korea) and H. parviflora (from China) are proposed. Lectotypes for Ypsilandra parviflora, Y. thibetica, Y. yunnanensis var. micrantha, Heloniopsis breviscapa and H. grandiflora are designated. A revised typification for Sugerokia japonica is proposed, negating a previous lectotypification. Heloniopsis tubiflora is reduced to synonymy under Helonias koreana. In Part III, the evolutionary and phylogeographic aspects of Helonias are discussed, and a phylogram inferred from cladistic analysis of phenotypic characters is presented. In the phylogram, Helonias is monophyletic, while H. sect. Helonias and H. subsect. Ypsilandra are respectively paraphyletic, and H. subsect. Heloniopsis is monophyletic. Incongruence in results between morphological and DNA sequence analyses is briefly discussed.

Keywords: character evolution, breeding system, floral structure, Heloniadeae, historical biogeography, infrageneric system, life history, phenology, Monocots

Noriyuki Tanaka. 2019. Taxonomy, Evolution and Phylogeography of the Genus Helonias (Melanthiaceae) Revisited. Phytotaxa. 390(1); 1–84. DOI:  10.11646/phytotaxa.390.1.1

[Herpetology • 2019] Nymphargus manduriacu • A New Glassfrog (Centrolenidae) from the Chocó-Andean Río Manduriacu Reserve, Ecuador, Endangered by Mining

Nymphargus manduriacu
Guayasamin​, Cisneros-Heredia, Vieira, Kohn, Gavilanes, Lynch, Hamilton & Maynard, 2019

We describe a new glassfrog from Río Manduriacu Reserve, Imbabura Province, on the Pacific slopes of the Ecuadorian Andes. The new species can be distinguished from most other glassfrogs by having numerous yellow spots on the dorsum and lacking membranes among fingers. Both morphological and molecular data support the placement of the species in the genus Nymphargus. We present a new mitochondrial phylogeny of Nymphargus and discuss the speciation patterns of this genus; most importantly, recent speciation events seem to result from the effect of the linearity of the Andes. Finally, although the new species occurs within a private reserve, it is seriously endangered by mining activities; thus, following IUCN criteria, we consider the new species as Critically Endangered.

Nymphargus manduriacu 


Figure 3: Nymphargus manduriacu sp. nov. in life.
(A)–(C) Adult male, holotype, ZSFQ 0466. (D)–(F) Adult female, paratype, ZSFQ 0462.

Figure 4: Life stages of Nymphargus manduriacu sp. nov. (A) Egg clutch (ZSFQ 467). (B) Metamorph (ZSFQ 618).

Figure 5: Nymphargus manduriacu sp. nov. and similar species.
(A) Nymphargus manduriacu, Reserva Río Manduriacu, Ecuador, uncollected. (B) N. buenaventura, Cascadas de Manuel, Cantón El Guabo, Provincia El Oro, 800 m, Ecuador, DHMECN 10982, photo by Juan Carlos Sánchez. (C) N. luminosus, Quebrada la Honda y La Amarill, Verada Venados Arriba, Municipio de Frontino, Departamento de Antioquia, Colombia, MAR 3576, photo by Marco Rada. (D) N. spilotus, Parque Nacional Natural Selva de Florencia, Colombia, JD 060, photo by Jesse Delia.

 Nymphargus manduriacu sp. nov., Reserva Río Manduriacu, Ecuador, uncollected.

Nymphargus manduriacu new species

Common names. English: Manduriacu glassfrog. 
Spanish: Rana de Cristal de Manduriacu.

Diagnosis. Nymphargus manduriacu sp. nov. is distinguished from most glassfrogs by lacking webbing between inner fingers and having, in life, a grayish green dorsum with numerous yellow spots, which sometimes are surrounded by an ill-defined black ring (i.e., false ocelli). On the Pacific slopes of the Ecuadorian and Colombian Andes, there are very few species that share the two aforementioned traits with N. manduriacu sp. nov.; these species are: N. buenaventura, N. ignotus, N. spilotus, and N. luminosus. Differences among these species are summarized in Table 1 and Figs. 5 and 6. The sister species of N. manduriacu sp. nov. is N. balionotus, which is easily differentiated by its unique dorsal color pattern, a green dorsum with several black and occasionally yellow to cinnamon blotches (Duellman, 1981; Arteaga-Navarro, Bustamante & Guayasamin, 2013). Also, the uncorrected p genetic distance between N. manduriacu sp. nov. and N. balionotus is 6.4–6.7% for the 12S and 16S concatenated matrix.

Evolutionary relationships of the new species. Given the gene and taxon sampling of our study, Nymphargus manduriacu sp. nov. is sister to N. balionotus. The latter taxon was considered to be as incertae sedis within the subfamily Centroleninae (Guayasamin et al., 2009). Here, we formally place Centrolenella balionota Duellman, 1981 in the genus Nymphargus sensu Guayasamin et al., 2009. Nymphargus manduriacu sp. nov. and N. balionotus are endemic to the Pacific slopes of the northern Andes, and are found syntopically at RMR.

Distribution. Nymphargus manduriacu is only known from a few nearby streams within the Río Manduriacu Reserve, Imbabura province, on the Pacific slopes of the Andes of Ecuador (Fig. 1). Based on these limited records, the species occupies a narrow elevational range of 1,215–1,242 m.

Conservation status. We recommend that N. manduriacu should be considered as Critically Endangered, following IUCN (2001) criteria B2a (known to exist from a single locality) and B2biii (continuing decline, observed, inferred or projected, in area, extent and/or quality of habitat). The main threats for the species are habitat destruction and contamination associated with cattle ranching, agriculture and, most seriously, mining activities (see Discussion; Fig. 8). Although RMR is still poorly surveyed, northwestern Ecuador has been the target of intense herpetological research (e.g., Lynch & Duellman, 1973, 1997; Arteaga-Navarro, Bustamante & Guayasamin, 2013; Arteaga et al., 2016), including areas nearby RMR (i.e., Reserva Los Cedros; Hutter & Guayasamin, 2015); thus, the restricted distribution of the new species is, most likely, real.

Etymology. The specific epithet “manduriacu” is a noun in apposition and refers to the type locality of the species, Río Manduriacu Reserve, a conservation area managed by Fundación EcoMinga (

We provide morphological, genetic, and acoustic evidence that support the validity of a new species, Nymphargus manduriacu. Also, we infer a new mitochondrial phylogeny of the genus Nymphargus that allows us to reveal speciation patterns in this taxon, mainly that recent speciation events in this genus seem to be heavily influenced by the linearity of the Andes and dry river-valleys that are run transversal to this mountain range. Finally, the new species is considered as Critically Endangered because of its restricted distribution, habitat destruction and contamination associated with cattle ranching, agriculture and, most seriously, mining activities. At Río Manduriacu Reserve, mining has become one of the most dangerous threats to biodiversity, especially to species with highly restricted distributions.

 Juan M. Guayasamin​, Diego F. Cisneros-Heredia, José Vieira, Sebastián Kohn, Gabriela Gavilanes, Ryan L. Lynch, Paul S. Hamilton and Ross J. Maynard. 2019. A New Glassfrog (Centrolenidae) from the Chocó-Andean Río Manduriacu Reserve, Ecuador, Endangered by Mining.   PeerJ. 7:e6400. DOI: 10.7717/peerj.6400

Tuesday, February 26, 2019

[Herpetology • 2019] Adenomera phonotriccus • A New Amazonian Species of Adenomera (Anura: Leptodactylidae) from the Brazilian state of Pará: A Tody-tyrant Voice in A Frog

 Adenomera phonotriccus 
 Carvalho, Giaretta,  Angulo, Haddad & Peloso, 2019

  DOI: 10.1206/3919.1 

 Leptodactylid frogs are phenotypically diverse, widely distributed across the Neotropics, and are known to harbor high levels of cryptic species diversity. This is especially true in Adenomera, where several candidate species have been recognized in a genetics-based study. Here we describe a new Amazonian species of Adenomera, which corresponds to one of the lineages previously identified as a candidate species (“sp. F”). Adenomera phonotriccus, n. sp., differs from all 18 recognized congeners by its unique advertisement call. Moreover, this species can be distinguished from nearly all congeners (except A. cotuba and A. lutzi) in having antebrachial tubercles on the undersides of its forearms. The distribution of A. phonotriccus seems to be restricted to the Araguaia-Xingu interfluve, in the eastern portion of the Brazilian state of Pará. Additional sampling effort on the right margin of the Araguaia River and along the Xingu River drainage should clarify the distribution of A. phonotriccus and perhaps result in the discovery of additional undescribed species of Adenomera in a region with high biological diversity

FIG. 1. Live specimens (all adult males) of  Adenomera phonotriccus from the type locality (Palestina do Pará, state of Pará, northern Brazil).
A, Holotype (MPEG 41155). B, Paratopotype CFBH 43130. C‒D, Paratopotype CFBH 43131.

Leptodactylidae Werner, 1896 
Adenomera Steindachner, 1867 

Adenomera phonotriccus, n. sp.

Diagnosis: Adenomera phonotriccus is differentiated from its congeners by the following combination of characters: (1) small size (adult male SVL 19.8–21.6 mm; table 1); (2) robust body shape; (3) toe tips unexpanded to slightly swollen (character states B, C; Heyer, 1973); (4) distal antebrachial tubercle on underside of forearm; (5) throat and belly cream colored, mottled white and gray in some parts; (6) two color morphotypes (presence/absence of dorsolateral stripes); (7) advertisement call consisting of a single type of pulsed note, emitted regularly, not in calling bouts; (8) advertisement notes composed of complete pulses (pulses with periods of silence in between); (9) long-lasting call duration (213‒433 ms).

Etymology: The epithet phonotriccus is the combination of Greek phono- (from phoné, “sound, voice”) and triccus (a small bird whose species is not identifiable, though in modern times the name is applied to tyrant flycatchers; Jobling, 2010). This name is to be treated as a noun in apposition and is an allusion to the similarity between the vocalization of the new species and those of tody-tyrants. Tody-tyrants of the Neotropical genus Hemitriccus have peculiar vocalizations, which are reminiscent of the vocalization of Adenomera phonotriccus, especially the trilled song of H. cohnhafti (see Zimmer et al., 2013). Interestingly, several Hemitriccus species are morphologically very similar, and consequently best differentiated by their vocalizations, a pattern also observed in Adenomera

Suggested vernacular name: Tody-tyrant-voiced nest-building frog.

Habitat and natural history: Adenomera phonotriccus is associated with forest habitats in Brazil’s eastern Amazonia in the state of Pará. The type locality is located on the west margin of the lower Araguaia River. This region is also occupied by savanna landscapes or ecotones between the Cerrado and Amazonian rainforest. The species was heard along an open area transect (by recent logging activity), especially at the forest edge, and inside the forest remnant. Males called while exposed or under leaf litter, and increased their calling activity during and shortly after rainfalls. The vocalization of Adenomera phonotriccus is very peculiar when heard in the field. Our first impression was that the calls might not be produced by a leptodactylid frog, or even an anuran species. Indeed, the vocalization is similar to that of some Neotropical suboscine birds (e.g., Rhynchocyclidae, Tyrannidae). There were two partially syntopic species of Adenomera also in calling activity at the study site: Adenomera sp. (A. heyeri clade) and A. aff. hylaedactyla. We heard the three species calling at the same period (late afternoon), even though A. phonotriccus and Adenomera sp. ceased most calling activity at dusk, whereas A. aff. hylaedactyla continued calling through the first hours of the night. The last species occupied open areas, e.g. pasture. In contrast, A. phonotriccus and Adenomera sp., are associated with forest habitats.

Distribution (fig. 5): Adenomera phonotriccus is known with certainty only from the type locality and Marabá. However, specimens from other regions in the state of Pará were also assigned to this lineage, referred as Adenomera sp. F, by Fouquet et al. (2014). Given the high levels of cryptic species diversity in Adenomera and complex genetic structure within the lineages identified by Fouquet et al. (2014), we conservatively restrict the species’ distribution to the type locality region until additional data, especially vocalizations, are obtained for the other populations assigned to Adenomera sp. F, a lineage widely distributed in central-east Pará, northern Brazil.

Thiago R. de Carvalho, Ariovaldo A. Giaretta,  Ariadne Angulo, Célio F.B. Haddad and Pedro L.V. Peloso. 2019. A New Amazonian Species of Adenomera (Anura: Leptodactylidae) from the Brazilian state of Pará: A Tody-tyrant Voice in A Frog.   American Museum Novitates. 3919(1); 1-21. DOI: 10.1206/3919.1

Monday, February 25, 2019

[Botany • 2018] Rhododendron meagaii (Ericaceae) • A New Species of Rhododendron Subgenus Vireya from Papua, Indonesia

 Rhododendron meagaii Mambrasar & Hutabarat

in Mambrasar & Hutabarat, 2018. 

 Rhododendron meagaii, is described and illustrated as a new species in subgenus Vireya (Ericaceae) from Mount Salju, District of Abenaho, Yalimo Regency, Papua Province, Indonesia. Characters distinguishing this new species from related species are discussed.

Key words: District of Abenaho, New Guinea, new species, Papua Province, Rhododendron meagaii.


Rhododendron meagaii Mambrasar & Hutabarat spec. nov. 

 Type: Indonesia, Papua Province, Yalimo Regency, Abenaho District, Mount Salju, 23 May 2016, Michael Mambrasar 239 (Holotype: BO! iso: E! K!).

Diagnosis. Distinct in section Hadranthe Schltr. in having the combination of characters: elliptic leaves, long stalked dendroid scales, a glabrous corolla and stamens of irregular lengths.

Etymology. Name in honour of Organes Meaga (†), Kebun Raya Biologi Wamena technician who helped in collecting this species.

Rhododendron meagaii Mambrasar & Hutabarat, spec. nov. Trima kasih Almarhum Organes Meagaii pahlawan botani dari Kebun Biologi Wamena. Jasamu akan selalu dikenang melalui nama ilmiah dari Rhododendron ini........

  Yasper M. Mambrasar and Prima W. K. Hutabarat. 2018. Rhododendron meagaii, A New Species of Rhododendron Subgenus Vireya (Ericaceae) from Papua, Indonesia. Reinwardtia. 17(2); 97‒100. DOI: 10.14203/reinwardtia.v17i2.3570

ABSTRAK: Rhododendron meagaii, dipertelakan dan digambar sebagai jenis baru pada submarga Vireya (Ericaceae) dari Gunung Salju, Distrik Abenaho, Kabupaten Yalimo, Provinsi Papua, Indonesia. Didiskusikan pula karakter yang membedakan jenis baru ini dengan jenis yang terdekat.
Kata kunci: Distrik Abenaho, jenis baru, Provinsi Papua, Pulau Nugini, Rhododendron meagaii.

Mambrasar, Y. M. & Hutabarat, P. W. K. 2018. Rhododendron meagaii, jenis baru Rhododendron submarga Vireya (Ericaceae) dari Papua, Indonesia. Reinwardtia17(2); 97‒100.


[Botany • 2019] Stichorkis davidlohmanii (Orchidaceae: Malaxideae) • A New Species from the southern Philippines

Stichorkis davidlohmanii  Naive, Cootes & Ormerod

in Naive, Cootes & Ormerod, 2019. 

 A new Philippine endemic speciesStichorkis davidlohmanii, is herein described and illustrated. This new species is comparable to S. compressa but distinct by its obovate, slightly conduplicate labellum with a blunt, obtusely rounded when flattened apex. 

KEY WORDS: Malaxideae; New species, Orchidaceae; Philippines, Plant Taxonomy, Stichorkis, Tropical botany. 

Fig. 1. Stichorkis davidlohmanii A. Habit, scale bar: 10 cm B. Rachis, scale bar: 2 cm C. Pseudobulb D. Flower (front view), scale bar: 1 cm E. Flower (profile view), scale bar: 1 cm F. Labellum, scale bar: 1 cm G. Dorsal sepal, scale bar: 1 cm H. Sepal I. Petal.
Drawn by: Gelli Dane T. Petros.

Fig. 2. Stichorkis davidlohmanii A. Habit, scale bar: 10 cm B. Detail of flower, scale bars: 1 cm.
 Photos by: M.A.K. Naive.

Stichorkis davidlohmanii Naive, Cootes & Ormerod, sp. nov. 

Diagnosis: Similar to Stichorkis compressa (Blume) J.J. Wood. However, S. davidlohmanii differs significantly in having these following characters: not flattened pseudobulbs, obovate, slightly conduplicate labellum with a blunt, obtusely rounded when flattened apex and a circular in outline anther cap. 

Distribution: At present, S. davidlohmanii is a Philippine endemic species and is only known from its type locality. 

Ecology: Found growing along with moss cushions in the base of the trunk in the primary broad-leaved montane forests with humid and close canopy environment at elevations between 1000 to 1300 m asl.

Etymology: This species is named in honor of Prof. Dr. David J. Lohman to recognize his efforts to document, study, and preserve the biota of Southeast Asia while mentoring the next generation of scientists, including the first author.  

Mark Arcebal K. Naive, Jim Cootes and Paul Ormerod. 2019. Stichorkis davidlohmanii (Orchidaceae; Malaxideae), A New Species from the southern Philippines.  Taiwania. 64(1); 65-68. DOI: 10.6165/tai.2019.64.65