Neohygrocybe griseonigra (Hygrophoraceae, Agaricales), a new species from subtropical China

Phytotaxa ◽  
2018 ◽  
Vol 350 (1) ◽  
pp. 64
Author(s):  
CHAO-QUN WANG ◽  
MING ZHANG ◽  
TAI-HUI LI

A new species in genus Neohygrocybe sect. Neohygrocybe, N. griseonigra, is described from the Chebaling National Nature Reserve in Guangdong province, China. It is characterized by its dark brown dry fibrillose pileus, whitish to grayish white lamellae that stain red then dark gray or blackish when bruised, smooth basidiospores, long sterigmata of basidia, and lanceolate pseudocystidia. Molecular phylogenetic analyses based on the ITS rDNA sequences also confirm the taxonomic status of the new species as the morphological characters indicated. A key to all known members of Neohygrocybe is provided in this study.

MycoKeys ◽  
2019 ◽  
Vol 51 ◽  
pp. 15-28
Author(s):  
Md. Iqbal Hosen ◽  
Xiang-Jing Zhong ◽  
Genevieve Gates ◽  
Takamichi Orihara ◽  
Tai-Hui Li

The type of Rossbeeverabispora and additional collections from the type location and adjacent areas were studied. Molecular data for R.bispora derived from the new collections are provided. In addition, R.griseobrunnea, a new species of Rossbeevera, is described from Xiangtoushan National Nature Reserve, Guangdong Province of China. The new species is characterized by its globose to subglobose sequestrate basidiomata with grayish white to grayish brown pileus, pale bluish discoloration in some parts of the hymenophore when injured becoming rusty brown to dark brown after being exposed to the air, fusoid (star-shaped in cross section) basidiospores 17–20 × 9–12 μm, and subcutis elements in the pileus. Based on multi-locus (ITS+nrLSU+tef1-α+rpb2) molecular phylogenetic analyses, both species appear as sister to R.paracyanea. We present color photos, macro- and micro-description, SEM basidiospores, molecular affinities of the species and compare them with morphologically similar taxa within the genus. A key to the species known from northern and southern hemispheres is provided.


Phytotaxa ◽  
2021 ◽  
Vol 478 (2) ◽  
pp. 261-267
Author(s):  
MENG ZHOU ◽  
JIA-JIA CHEN ◽  
JOSEF VLASÁK ◽  
YUAN YUAN

Dentipellicula guyanensis, a new species of Hericiaceae, is described and illustrated based on morphological characters and supported by molecular phylogenetic analyses using ITS and nLSU rDNA sequences. D. guyanensis is characterized by an annual and resupinate growth habit, a monomitic hyphal structure with non-amyloid, non-dextrinoid and acyanophilous generative hyphae, the presence of gloeoplerous hyphae in hymenophoral trama, the presence of gloeocystidia, and rough basidiospores measuring as 2.8–3.1 × 1.9–2.1 µm. A key to accepted species of Dentipellicula is provided.


Phytotaxa ◽  
2019 ◽  
Vol 427 (1) ◽  
pp. 31-42
Author(s):  
LEI SHU ◽  
RUI-LIANG ZHU

Based on molecular phylogenetic analyses and morphological characters, a new species from Bangladesh, northern Vietnam, and southwestern China, Leptolejeunea nigra, is described. It is mostly similar to L. balansae but remarkable for having brownish black ocelli in its leaf lobes. In the molecular phylogeny, the samples of L. nigra are not nested within any clade and form an independent lineage. In particular, the molecular dating suggested that the divergence of L. nigra happened in time span of the formation of the Himalayas.


2016 ◽  
Vol 91 (3) ◽  
pp. 360-370 ◽  
Author(s):  
D.H. Morais ◽  
A. Aguiar ◽  
M.I. Müller ◽  
R.B. Narciso ◽  
L.A.F. da Silva ◽  
...  

AbstractSerpentirhabdias viperidicus n. sp. (Nematoda: Rhabdiasidae) is described from the lungs of the ‘Brazilian lancehead’ Bothrops moojeni (Hoge, 1966) from the savannah in São Paulo State, Brazil. The new species is the eighth species of Serpentirhabdias described in the Neotropical region, and differs from other species mainly by a combination of characters: lips slightly notable, presence of fine striations at posterior ends, presence of two parallel lines with intercalated pores, a pore-shaped phasmid situated at the level of the anal aperture and another two in the posterior half of the tail. It is the first species of Serpentirhabdias reported in this snake host and the second species of this genus found parasitizing South American viperidian snakes. Molecular phylogenetic analysis using ribosomal (ITS and 28S partial) genes confirms Serpentirhabdias viperidicus n. sp. as a new species that clustered in the Serpentirhabdias clade, sister taxon to Serpentirhabdias fuscovenosa and Serpentirhabdias elaphe. This is the first description of Serpentirhabdias species from Brazil using molecular approaches and morphological characters to confirm the monophyly of this recent genus.


Phytotaxa ◽  
2020 ◽  
Vol 434 (1) ◽  
pp. 89-100
Author(s):  
ZIA ULLAH ◽  
RUBAB KHURSHED ◽  
MUHAMMAD BINYAMIN KHAN ◽  
ISRAR AHMAD ◽  
SANA JABEEN ◽  
...  

During this investigation, a new species of Melanoleuca subg. Urticocystis with urticiform cheilocystidia is proposed. The identification is based on morphological characters and molecular phylogenetic analyses using ITS and 28S sequences. A comparison of the morphological features and molecular phylogenetic data with the taxa of subg. Urticocystis confirms the identity of the species as a new taxon. The detailed descriptions, line drawings and phylogenetic results are given.


Phytotaxa ◽  
2018 ◽  
Vol 372 (3) ◽  
pp. 212 ◽  
Author(s):  
KUAN ZHAO ◽  
NIAN-KAI ZENG ◽  
LI-HONG HAN ◽  
XIAO-YE GAO ◽  
JIAN-TAO LIU ◽  
...  

Phylloporus pruinatus is described as a new species characterized by its small basidiomata about 2–3 cm diam, a yellowish brown to reddish brown pileal surface covered with a thin white pruina, white to cream yellow context, whitish basal mycelium and small spores. Molecular phylogenetic analyses based on three gene makers (ITS, nrLSU and tef1-α) also confirmed it belongs to the genus Phylloporus and that it is distinct from any known species. Morphological illustrations and descriptions are provided.


ZooKeys ◽  
2019 ◽  
Vol 871 ◽  
pp. 119-139 ◽  
Author(s):  
Jian Wang ◽  
Zhi-Tong Lyu ◽  
Chen-Yu Yang ◽  
Yu-Long Li ◽  
Ying-Yong Wang

A new species, Takydromus yunkaiensis J. Wang, Lyu, & Y.Y. Wang, sp. nov. is described based on a series of specimens collected from the Yunkaishan Nature Reserve located in the southern Yunkai Mountains, western Guangdong Province, China. The new species is a sister taxon to T. intermedius with a genetic divergence of 8.0–8.5% in the mitochondrial cytochrome b gene, and differs from all known congeners by a combination of the following morphological characters: (1) body size moderate, SVL 37.8–56.0 mm in males, 42.6–60.8 mm in females; (2) dorsal ground color brown; ventral surface green to yellow-green, but light blue-green on chin and throat, posteriorly green in adult males; (3) dorsolateral lines paired, strikingly yellowish-white bordered by black above and below, invisible or indistinct in juveniles and adult females; (4) flanks of body blackish brown with light brown marks in adult males; (5) presence of four pairs of chin-shields; (6) four supraoculars on each side; (7) presence of a row of supracilary granules that separate supracilaries from supraoculars; (8) two postnasals; (9) enlarged dorsal scales in six longitudinal rows on trunk of body, with strong keel; (10) enlarged ventral scales in six longitudinal rows, strongly keeled in males, smooth but outermost rows weakly keeled in females; (11) enlarged and keeled lateral scales in a row above ventrals; (12) femoral pores 2–3 on each side; (13) subdigital lamellae 20–23 under the fourth finger, 23–30 under the fourth toe; and (14) the first 2–3 subdigital lamellae under the fourth toe divided. The discovery of Takydromus yunkaiensissp. nov. brings the total number of species of this genus to 24, of which nine occur in mainland China.


ZooKeys ◽  
2020 ◽  
Vol 991 ◽  
pp. 137-153
Author(s):  
Shuo Qi ◽  
Jian Wang ◽  
L. Lee Grismer ◽  
Hong-Hui Chen ◽  
Zhi-Tong Lyu ◽  
...  

A new species of the genus Goniurosaurus is described based on three specimens collected from a limestone cave in Huaiji County, Guangdong Province, China. Based on molecular phylogenetic analyses, the new species is nested within the Goniurosaurus yingdeensis species group. However, morphological analyses cannot ascribe it to any known species of that group. It is distinguished from the other three species in the group by a combination of the following characters: scales around midbody 121–128; dorsal tubercle rows at midbody 16–17; presence of 10–11 precloacal pores in males, and absent in females; nuchal loop and body bands immaculate, without black spots; iris orange, gradually darker on both sides. The discovery of yet another limestone-adapted species of Goniurosaurus in Guangdong Province underscores a growing body of evidence for the high biodiversity of limestone habitats and brings into sharp focus the urgent need for their conservation.


Phytotaxa ◽  
2017 ◽  
Vol 309 (2) ◽  
pp. 135 ◽  
Author(s):  
JIA-JIA CHEN ◽  
LI LÜ ◽  
WEN-WU YE ◽  
YUAN-CHAO WANG ◽  
XIAO-BO ZHENG

A new species of Pythiales: Pythium cedri, isolated from Cedrus deodara (Pinaceae) in Jiangsu Province of China is described and illustrated based on morphological characters and supported by molecular phylogenetic analyses using ITS+COI sequences. Pythium cedri belongs to Pythium clade D and is characterized by presence of hyphal swellings, toruloid sporangia, ornamented oogonia with blunt spines, monoclinous antheridia, plerotic or nearly plerotic oospores, and relatively slow growth (11–15 mm d–1). A key to accepted species of Pythium clade D is provided.


Phytotaxa ◽  
2016 ◽  
Vol 243 (2) ◽  
pp. 147 ◽  
Author(s):  
Wangqiu Deng ◽  
Taihui Li ◽  
MD. IQBAL HOSEN

Amanita rufobrunnescens is described as a new species in the subgenus Lepidella section Amidella from Guangdong Province, China. It is characterized by whitish basidiomes that bruise reddish brown, brownish sub-membranous to fibrillose volval remnants on the pileus, a striate pileus margin, white lamellae with truncate lamellulae, grayish orange to light brown volva, amyloid basidiospores that are ellipsoid to elongate (9.5–)10–12(–13) × (5–)5.5–6.5(–7) µm, and 5–10 μm wide pileipellis hyphae with yellowish vacuolar pigments. There are no clamp connections. Molecular phylogenetic analyses based on the nuclear ribosomal large subunit of nuclear ribosomal DNA (LSU) and internal transcribed spacer (ITS) sequences reveal that A. rufobrunnescens is a distinct species.


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