Russula buyckii, a new species of Russula subgenus Incrustatula from Eastern Himalaya, India

Phytotaxa ◽  
2016 ◽  
Vol 252 (2) ◽  
pp. 123 ◽  
Author(s):  
SOUMITRA PALOI ◽  
ARUN KUMAR DUTTA ◽  
PRAKASH PRADHAN ◽  
ANIRBAN ROY ◽  
KRISHNENDU ACHARYA

Russula buyckii, a new species of Russula (subgen. Incrustatula, sect. Lilaceinae and subsect. Lilaceinae) is described from Eastern Himalaya, India. Its macro- and micro-morphological features are described in detail and compared with those of similar species. Identification and categorization of R. buyckii was supported by the molecular phylogenetic analysis based on the nrDNA ITS sequence data.

Mycotaxon ◽  
2020 ◽  
Vol 135 (4) ◽  
pp. 765-776
Author(s):  
Sana Jabeen ◽  
Arooj Naseer ◽  
Abdul Nasir Khalid

A new species, Russula rubricolor, was collected in the Himalayan forests of Pakistan. This species is morphologically characterized by the yellowish hymenium, bright red pileus that is convex to flat with central depression and finally infundibuliform and striate towards margin, becoming blackish red with age. The newly reported species is placed in Russula subsect. Maculatinae based molecular phylogenetic analysis of ITS sequence data and supported by the red pileus color.


Phytotaxa ◽  
2021 ◽  
Vol 527 (4) ◽  
pp. 266-274
Author(s):  
XIN-XIN FENG ◽  
ZHI-XIAN LIU ◽  
DAN WEI ◽  
REN-KUN LI ◽  
YU-NI HUANG ◽  
...  

Begonia fenshuilingensis X.X.Feng, R.K.Li & Z.X.Liu, a new species in Begonia sect. Platycentrum (Klotzsch) A.DC. (Begoniaceae) from southeastern Yunnan, China, is here described and illustrated. It morphologically resembles B. dryadis and B. daweishanensis, but differs by its fleshy trigonous-ellipsoid capsules without wings. Molecular phylogenetic analysis of ITS sequence data supports the new species as monophyletic, and distinct from the two similar species. Due to its limited distribution, we consider the new taxon as “Vulnerable D2” (VU D2) according to the IUCN Red List Categories and Criteria.


PhytoKeys ◽  
2020 ◽  
Vol 140 ◽  
pp. 23-32
Author(s):  
Cun Mou ◽  
Yu Wu ◽  
Liang Xiang ◽  
Xiao-Mei Xiang ◽  
Dai-Gui Zhang

A new species of Lysimachia, L. xiangxiensis (Primulaceae), is described and illustrated from western Hunan, central China. The species is similar to L. melampyroides in plant densely strigillose, leaves subglabrous adaxially, and flowers usually solitary in axils of upper leaves, but differs by the succulent leaves, the creeping or ascending stems 15–25 cm long, and the suborbicular to broadly elliptic corolla lobes. This new species is also supported by a molecular phylogenetic analysis of some Lysimachia species based on ITS sequence data.


Phytotaxa ◽  
2017 ◽  
Vol 329 (3) ◽  
pp. 277 ◽  
Author(s):  
ANDREW S. URQUHART ◽  
PAULINE M. L. COULON ◽  
ALEXANDER IDNURM

Pilaira australis, a new species of fungus in the coprophilous genus Pilaira, was isolated from emu (Dromaius novaehollandiae) faeces and is described. Morphologically, the species resembles other species in the genus, particularly P. moreaui, except differs in its unique combination of sporangiophore height and sporangiospore length. Molecular phylogenetic analysis indicates that P. australis is distinct from other species in the genus with two regions, the internal transcribed spacers (ITS) and a fragment of the pyrG gene, showing 91% and 90% identity to the nearest species, respectively. Ultrastructure features and carbon utilisation were determined for P. australis, and may provide characteristics for species identification in this genus.


Phytotaxa ◽  
2018 ◽  
Vol 369 (4) ◽  
pp. 241 ◽  
Author(s):  
CHUAN-GEN LIN ◽  
ERIC H. C. MCKENZIE ◽  
DARBHE J. BHAT ◽  
JIAN-KUI LIU ◽  
KEVIN D. HYDE ◽  
...  

A new species, Pseudodactylaria brevis, is described, illustrated and compared with other Pseudodactylaria and Dactylaria-like taxa. Evidence for the new species is provided by morphological comparison and sequence data analyses. Pseudodactylaria brevis can be distinguished from other Pseudodactylaria and Dactylaria-like species by its short hyaline conidiophores and fusiform, 1-septate hyaline conidia. Phylogenetic analysis of LSU and ITS sequence data was carried out to determine the phylogenetic placement of the species and confirm the taxonomic status of Pseudodactylariaceae.


Phytotaxa ◽  
2020 ◽  
Vol 472 (1) ◽  
pp. 23-32
Author(s):  
LIU-FU HAN ◽  
YU-HUAN XIE ◽  
HUAN-BING ZHANG ◽  
LI-SI LI ◽  
SHOU-YU GUO

During the study of Usnea from China, we identified and illustrated a new species, Usnea sulphuridiscoidea S. Y. Guo & L. F. Han from the Ailaoshan Mountain of Southwest China, based on morphological characteristics and nrDNA ITS sequence data. This new species can be distinguished morphologically from other apotheciate members of Usnea by the special lateral apothecia with sulphur disc, the inflated branches with glossy surface and numerous papillae as well as many fibrils, meanwhile lacking pseudocyphellae and soralia. The nrDNA ITS sequence data supported the recognition of the new species.


Phytotaxa ◽  
2016 ◽  
Vol 244 (1) ◽  
pp. 45 ◽  
Author(s):  
CHUN LI ◽  
LI-HUA YANG ◽  
DAI-KE TIAN ◽  
YUE CHEN ◽  
RUI-JUAN WU ◽  
...  

Begonia leipingensis D. K. Tian, L. H. Yang & C. Li (2n = 30), a new species in Begonia sect. Coelocentrum from the limestone area of Guangxi, China. B. leipingensisis is easily distinguished from any other compound-leaved species in Begonia by its large variation in petiolule number and its unique spirally-arranged petiolule pattern, which has never been seen in Begoniaceae before and rarely seen even in other angiosperm taxa. Besides having non-overlapping flowering periods, it is clearly different from B. fangii, the most morphologically similar species in the same section and with the same chromosome number. In addition to its unique petiolule pattern, B. leipingensis has longer abaxial wings, shorter internodes, and usually larger leaves, leaflets and habit. Molecular phylogenetic analysis showed that B. leipingensis formed an independent lineage belonging to Sect. Coelocentrum. Morphological and phylogenetic evidence strongly supports this species as a new taxon in Sect. Coelocentrum of Begonia. B. leipingensis was assessed to be critically endangered based on criterion outlined by IUCN Red List Categories and Criteria.


MycoKeys ◽  
2021 ◽  
Vol 85 ◽  
pp. 57-71
Author(s):  
Taichang Mu ◽  
Zhaoxue Zhang ◽  
Rongyu Liu ◽  
Shubin Liu ◽  
Zhuang Li ◽  
...  

Colletotrichum has numerous host range and distribution. Its species are important plant pathogens, endophytes and saprobes. Colletotrichum can cause regular or irregular depressions and necrotic lesions in the epidermal tissues of plants. During this research Colletotrichum specimens were collected from Mengyin County, Shandong Province, China. A multi-locus phylogenetic analysis of ITS, GAPDH, CHS-1, ACT, TUB2, CAL and GS sequence data combined with morphology, revealed a new species and two known species, viz. C. mengyinense sp. nov., C. gloeosporioides and C. pandanicola, belonging to the C. gloeosporioides species complex. The new species is described and illustrated in this paper and compared with taxa in the C. gloeosporioides species complex.


Phytotaxa ◽  
2017 ◽  
Vol 316 (2) ◽  
pp. 161 ◽  
Author(s):  
ANUSHA H. EKANAYAKA ◽  
KEVIN D. HYDE ◽  
E.B. GARETH JONES ◽  
QI ZHAO ◽  
ABDALLAH M. ELGORBAN ◽  
...  

The genus Trichoglossum (Geoglossaceae) is characterized by black, clavate, stipitate apothecia with hymenial setae. We collected T. cf. octopartitum from China and a new species of Trichoglossum from Thailand, the latter named as T. septatum. According to morphological examination and molecular phylogenetic analyses of ITS sequence data, T. septatum diverges from other Trichoglossum species. Full descriptions, colour figures, and a phylogenetic tree to show the positions of T. cf. octopartitum and T. septatum are provided, and the two species are compared with allied taxa. The important morphological characteristics of Trichoglossum species are also summarized.


Webbia ◽  
2021 ◽  
Vol 76 (2) ◽  
pp. 195-202
Author(s):  
Propa Joy R. Santor ◽  
Duane Dominic B. Santiago ◽  
Conrado Joshua V. Mataga ◽  
Elyjha S. Gabriel ◽  
Grecebio Jonathan D. Alejandro

Hedyotis hamiguitanensis, from Mt. Hamiguitan, Davao Oriental, Philippines, is described, illustrated, and compared with two similar species, H. whiteheadii and H. schlechteri. This species is distinguished from congeneric Philippine species by its 5–12 cm long, compound, umbellate inflorescences, pendulous flowers, lanceolate to oblanceolate, thick, scabrid leaf blades with revolute margins. Its phylogenetic systematic position within the tribe Spermococeae is determined with a phylogenetic analysis using chloroplast (rps16, petD) and nuclear ribosomal (ITS, ETS) nucleotide sequence data.


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