Helminthosporium submersum sp. nov. (Massarinaceae) from submerged wood in north-western Yunnan Province, China

Phytotaxa ◽  
2018 ◽  
Vol 348 (4) ◽  
pp. 269
Author(s):  
NA ZHAO ◽  
ZONG-LONG LUO ◽  
KEVIN D HYDE ◽  
HONG-YAN SU ◽  
DARBHE J. BHAT ◽  
...  

The diversity of lignicolous freshwater fungi of China is currently being studied. In this paper, we report on nine collections of asexual morphs of Helminthosporium from submerged wood in rivers and streams in west to north-west Yunnan Province, China. The taxa are characterized based on morphology and phylogenetic analyses of ITS, LSU, SSU, RPB2 and TEF1α sequence data. A new species, Helminthosporium submersum, is described and illustrated with notes on taxonomy and phylogeny. Molecular data for Helminthosporium aquaticum and H. velutinum are provided.

Phytotaxa ◽  
2016 ◽  
Vol 273 (1) ◽  
pp. 34 ◽  
Author(s):  
JUNFU LI ◽  
RUNGTIWA PHOOKAMSAK ◽  
AUSANA MAPOOK ◽  
SARANYAPHAT BOONMEE ◽  
JARAYAMA D. BHAT ◽  
...  

A new Seifertia species was isolated from hanging rachides of Rhododendron decorum in Yunnan Province, Southwest China. The new taxon was compared with the type species, S. azalea and differs in having wider conidiophores, with hyaline to subhyaline and smaller conidia, while S. azalea has olive-brown to brown, rarely branched conidiophores, and pale brown or olive-brown, very rarely septate conidia. Phylogenetic analyses of combined LSU, SSU and TEF1-α sequence data show that S. shangrilaensis forms a robust clade with S. azalea nested among the species of Melanommataceae in the order Pleosporales. A new species, S. shangrilaensis is introduced in this study, and Seifertia should be placed in Melanommataceae (Pleosporales, Dothideomycetes) based on phylogenetic analysis. Description and illustration of Seifertia shangrilaensis are provided with notes and its introduction is supported by molecular data.


Phytotaxa ◽  
2019 ◽  
Vol 399 (1) ◽  
pp. 100 ◽  
Author(s):  
GUI-ZHEN CHEN ◽  
GUO-QIANG ZHANG ◽  
JIE HUANG ◽  
MENG WANG ◽  
WEN-HUI RAO ◽  
...  

A new orchid species, Cymbidium shidianense (Orchidaceae; Cymbidieae), from Yunnan Province, China, is described and illustrated based on morphological and molecular analyses. This new species is similar in morphology to C. cyperifolium, but it differs in its larger pseudobulbs, rigid leaves, broader pale green sepals, petals with darkly coloured veins and set of V-shaped blotches on the lip midlobe. A phylogenetic analyses based on nuclear ribosomal ITS and plastid (matK, rbcL) DNA sequence data support C. shidianense as related to C. cyperifolium.


Phytotaxa ◽  
2016 ◽  
Vol 253 (3) ◽  
pp. 179 ◽  
Author(s):  
DAN ZHU ◽  
ZONG-LONG LUO ◽  
DARBHE JAYARAMA BAHT ◽  
ERIC.H.C. MCKENZIE ◽  
ALI H. BAHKALI ◽  
...  

Helminthosporium species from submerged wood in streams in Yunnan Province, China were studied based on morphology and DNA sequence data. Descriptions and illustrations of Helminthosporium velutinum and a new species H. aquaticum are provided. A combined phylogenetic tree, based on SSU, ITS and LSU sequence data, place the species in Massarinaceae, Pleosporales. The polyphyletic nature of Helminthosporium species within Massarinaceae is shown based on ITS sequence data available in GenBank.


Phytotaxa ◽  
2018 ◽  
Vol 348 (2) ◽  
pp. 99 ◽  
Author(s):  
SHIKE HUANG ◽  
SAJEEWA S.N. MAHARACHCHIKUMBURA ◽  
RAJESH JEEWON ◽  
D JAYARAMA BHAT ◽  
RUNGTIWA PHOOKAMSAK ◽  
...  

In this paper, we report a new asexual-morph taxon belonging to the family Cordycipitaceae (Hypocreales), which is associated with a sexual morph of an ophioceras-like taxon on submerged wood collected from Baoshan, Yunnan, China. Morphologically, this new taxon is similar to known asexual morphs of Lecanicillium and characterized by conidiophores arising from hyaline hyphae, with gregarious, ellipsoid to ovoid, aseptate conidia. Phylogenetic analyses of a combined LSU, SSU, tef1-α and ITS sequence dataset positions our taxon in Cordycipitaceae and close to Lecanicillium sp. (CBS 639.85) and L. primulinum. Lecanicillium subprimulinum is introduced as a new species with support from molecular data.


Zootaxa ◽  
2021 ◽  
Vol 4942 (3) ◽  
pp. 351-381
Author(s):  
SHENGCHAO SHI ◽  
DONGHUI LI ◽  
WENBO ZHU ◽  
WEN JIANG ◽  
JIANPING JIANG ◽  
...  

A new species of genus Megophrys from Gaoligong Mountains, Yunnan Province, China is described. Phylogenetic analyses based on mitochondrial DNA and nuclear DNA all clustered the new species as an independent clade nested into the subgenus Panophrys. The smallest genetic distance based on 16S rRNA gene between the new species and its congeners was 3.0%. The new species could be identified from its congeners by a combination of following characters: moderate body size (SVL 31.0–34.8 mm in males); vomerine ridge weak, vomerine teeth absent; dorsal skin relatively smooth; tongue slightly notched behind; tympanum rounded and relatively large, 0.54 times of eye length; a horn-like tubercle on edge of each upper eyelid small; tibio-tarsal articulation reaches middle eye when leg stretched forward; finger tips rounded, not expanded to small pad; toes with narrow fringes and rudimentary webbing; ventral hindlimbs semitransparent purplish with greyish white pigments; ventral body scattered with distinct dark patches in the middle. 


Phytotaxa ◽  
2021 ◽  
Vol 484 (3) ◽  
pp. 291-297
Author(s):  
XINYU XU ◽  
CHANG-CHUN DING ◽  
WENQI HU ◽  
XIA YU ◽  
YU ZHENG ◽  
...  

A new species of Cymbidium (Orchidaceae), Cymbidium xichouense, from Yunnan Province, China, is described and illustrated based on morphological evidence and molecular analyses. The new orchid is morphologically similar to C. qinbeiense, but it has several morphological features that distinguish it from C. qiubeinense and all other recognized species in Cymbidium. Phylogenetic analyses based on nuclear (ITS) and plastid DNA (matK) were conducted, and the results also supported the status of C. xichouense as a new species, which is sister to C. qiubeiense.


Phytotaxa ◽  
2021 ◽  
Vol 480 (1) ◽  
pp. 45-56
Author(s):  
YI-LE WAN ◽  
DAN-FENG BAO ◽  
ZONG-LONG LUO ◽  
DARBHE-JAYARAMA BHAT ◽  
YUE-XIN XU ◽  
...  

During a survey on diversity of freshwater fungi along a north-south latitudinal gradient in Asia, three fresh specimens of Minimelanolocus were collected from submerged wood in streams in northwestern Yunnan Province, China. Based on their distinct morphological features and phylogenetic analyses of combined ITS, LSU and SSU sequence data, Minimelanolocus nujiangensis and M. clavatus are described as new species and M. submersus was recollected from Yunnan, China. Illustrations and descriptions with notes of the three species are provided. This study increases the known diversity of Minimelanolocus and enriches freshwater fungal resources.


Phytotaxa ◽  
2016 ◽  
Vol 280 (2) ◽  
pp. 116 ◽  
Author(s):  
HUILI LI ◽  
XUELAN MA ◽  
PETER E. MORTIMER ◽  
SAMANTHA C. KARUNARATHNA ◽  
JIANCHU XU ◽  
...  

Four specimens of Phallus were collected during surveys in a Pinus armandii forest in Baoshan, Yunnan Province, China. Macro- and micro-characteristics, together with Internal Transcribed Spacer (ITS) sequence data, showed that the four specimens belong to a new species, here named Phallus haitangensis. The ITS phylogenetic analyses, morphological descriptions, color photographs, and line drawings are provided, and compared with closely related species in the genus.


2021 ◽  
Vol 5 (1) ◽  
pp. 129-139
Author(s):  
Shuo Liu ◽  
Mian Hou ◽  
Ye Htet Lwin ◽  
Qiaoyan Wang ◽  
Dingqi Rao

A new species of the genus Gonyosoma Wagler is described from Yunnan Province, China. The new species closely resembles G. prasinum (Blyth), but it is differentiated from the latter species by the following characters: precloacal plate divided, iris blue and inside of mouth greyish-white in life. Based on phylogenetic analyses of mitochondrial cytochrome b sequence data, the new species is recovered as the sister species to G. prasinum by Bayesian Inference and Maximum Likelihood analyses. The uncorrected pairwise distance between the new species and other species of the genus Gonyosoma ranged from 11.78% to 17.07% calculated using the mitochondrial cytochrome b sequence. This discovery increases the number of Gonyosoma species to seven.


Phytotaxa ◽  
2019 ◽  
Vol 387 (2) ◽  
pp. 149-157 ◽  
Author(s):  
GUO-QIANG ZHANG ◽  
GUI-ZHEN CHEN ◽  
LI-JUN CHEN ◽  
SI-REN LAN

A new orchid species, Cymbidium yunnanensis (Orchidaceae; Epidendroideae; Cymbidieae), from Yunnan Province, China, is described and illustrated. Based on morphological and molecular analyses, we demonstrate that this new species is similar to C. floribundum, but it differs in its smaller size, leaves 5–15 cm, shorter scape, white flowers with pale purplish markings on its sepals and petals, lip with purplish red blotch, petals narrowly falcate oblong and lip midlobe nearly round with column foot 1.5–2.0 mm long. Phylogenetic analyses based on nuclear ribosomal ITS and plastid (matK, rbcL) DNA sequence data support C. yunnanensis as a new species.


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