Phytopythium nanjingense sp. nov. (Pythiaceae, Peronosporales) from southern China based on morphological and molecular characters

Phytotaxa ◽  
2019 ◽  
Vol 403 (3) ◽  
pp. 239
Author(s):  
JIA-JIA CHEN ◽  
HUI FENG ◽  
YUAN-CHAO WANG ◽  
XIAO-BO ZHENG
Keyword(s):  
New Species ◽  
Southern China ◽  
Phylogenetic Analyses ◽  
Morphological Characters ◽  
Similar Species ◽  
Mtdna Sequences ◽  
Molecular Phylogenetic ◽  
Thin Walled ◽  
A New Species ◽  
Molecular Characters

A new species of Peronosporales: Phytopythium nanjingense, isolated from the lake water of Nanjing in Jiangsu Province of China is described and illustrated based on morphological characters and supported by molecular phylogenetic analyses using ITS rDNA and Cox1 and Cox2 mtDNA sequences. Phytopythium nanjingense is heterothallic and characterized by aquatic habitat, ellipsoid, mostly obpyriform to ovoid-obpyriform, internally or internally nested proliferating sporangia with conspicuous apical papillae, smooth oogonia, hypogynous antheridia, filamentous antheridial cells, and plerotic or nearly plerotic and thin-walled oospores (0.5–1.6 µm). Differences between the new species and phylogenetically related and morphologically similar species are discussed.

Pythium cedri sp. nov. (Pythiaceae, Pythiales) from southern China based on morphological and molecular characters

Phytotaxa ◽  
2017 ◽  
Vol 309 (2) ◽  
pp. 135 ◽  
Author(s):  
JIA-JIA CHEN ◽  
LI LÜ ◽  
WEN-WU YE ◽  
YUAN-CHAO WANG ◽  
XIAO-BO ZHENG
Keyword(s):  
New Species ◽  
Slow Growth ◽  
Southern China ◽  
Phylogenetic Analyses ◽  
Morphological Characters ◽  
Cedrus Deodara ◽  
Molecular Phylogenetic ◽  
Coi Sequences ◽  
A New Species ◽  
Molecular Characters

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.

A new species of the genus Megophrys (Amphibia: Anura: Megophryidae) from Hunan, China

Zootaxa ◽  
2019 ◽  
Vol 4695 (4) ◽  
pp. 301-330 ◽  
Author(s):  
LU WANG ◽  
XUEJIAN DENG ◽  
YONG LIU ◽  
QIANQIAN WU ◽  
ZHAO LIU
Keyword(s):  
New Species ◽  
Southern China ◽  
Phylogenetic Analyses ◽  
Small Body ◽  
Morphological Characters ◽  
Hunan Province ◽  
Rrna Gene ◽  
Adult Males ◽  
Molecular Phylogenetic ◽  
A New Species

We describe a new species of Megophryidae frog, Megophrys shunhuangensis sp. nov., from Hunan Province, Southern China. It can be distinguished from other known species in the subgenus Panophrys by morphological characters, bioacoustic data and a molecular divergence in the mitochondrial 16S rRNA gene similar to that found among other species of Panophrys. M. shunhuangensis sp. nov. is characterized by a relatively small body size, with adult females measuring 37.6 mm and adult males measuring 30.3–33.6 mm in snout to vent length; maxillary teeth present, vomerine teeth absent; tongue smooth, not notched behind; hindlimb slender, heels overlapping, tibio-tarsal articulation reaches forward between the nasal and tip of snout. Molecular phylogenetic analyses also show that M. sp. 6 from (Mao’er Shan, China) from Chen et al. (2017) and M. sp. 24 (Anjiangping and Mao’er Shan, China) from Liu et al. (2018) may be the same species as M. shunhuangensis sp. nov., we consequently speculate that the new species also distributed in Anjiangping and Mao’er Shan, China. At present, the genus Megophrys contains 85 species of which 48 species are distributed in China, and 30 belong to the subgenus Panophrys. 

Cortinarius khinganensis (Agaricales), a new species of section Illumini from Northeast China

Phytotaxa ◽  
2021 ◽  
Vol 500 (1) ◽  
pp. 1-10
Author(s):  
MENG-LE XIE ◽  
TIE-ZHENG WEI ◽  
BÁLINT DIMA ◽  
YONG-PING FU ◽  
RUI-QING JI ◽  
...  
Keyword(s):  
New Species ◽  
Phylogenetic Relationships ◽  
Northeast China ◽  
Phylogenetic Analyses ◽  
Morphological Characteristics ◽  
Sensu Stricto ◽  
Similar Species ◽  
Molecular Phylogenetic ◽  
A New Species

This study presents one telamonioid species new to science based on morphological characteristics and molecular phylogenetic analyses. Cortinarius khinganensis was collected from the Greater Khingan Mountains, Northeast China and it is characterized by hygrophanous, vivid brownish red and striate pileus, white universal veil, and subglobose spores. According to phylogenetic analyses results, C. khinganensis belongs to the section Illumini, which is a lineage distantly related from subgenus Telamonia sensu stricto. Detailed descriptions of the new species and the comparisons with morphologically similar species are provided. The phylogenetic relationships within the section Illumini are also discussed.

A new species of Gymnopus sect. Androsacei (Omphalotaceae, Agaricales) from China

Phytotaxa ◽  
2021 ◽  
Vol 521 (1) ◽  
pp. 1-14
Author(s):  
JI-PENG LI ◽  
BIN SONG ◽  
ZHAN FENG ◽  
JING WANG ◽  
CHUN-YING DENG ◽  
...  
Keyword(s):  
New Species ◽  
Phylogenetic Analyses ◽  
Morphological Description ◽  
Similar Species ◽  
Line Drawings ◽  
Pale Yellow ◽  
Molecular Phylogenetic ◽  
A New Species

A new species of Gymnopus sect. Androsacei, namely, G. pallipes is described and illustrated based on morphological and molecular phylogenetic evidence. It is characterized by marasmioid basidiomata, a dark brown to reddish brown pileus becoming dull white to yellowish grey with age, whitish to pale yellow stipe and presence of rhizomorphs. Phylogenetic analyses support it as a new species within Gymnopus sect. Androsacei. The detailed morphological description, colour photos of basidiomata, and line drawings of microcharacters are presented and delimitation characters from similar species are discussed. A key to the known species of Gymnopus s. str. from China is also provided.

Euphorbia motuogensis (Euphorbiaceae), a new species from Xizang, China

Phytotaxa ◽  
2021 ◽  
Vol 527 (2) ◽  
pp. 107-116
Author(s):  
MAN-TING LI ◽  
XIAO-ZHONG LAN ◽  
YOU-WEI ZUO ◽  
HONG-PING DENG
Keyword(s):  
New Species ◽  
Phylogenetic Analyses ◽  
Similar Species ◽  
Molecular Phylogenetic ◽  
A New Species

Euphorbia motuogensis M. T. Li, X. Z. Lan, H. P. Deng & W. L. Zheng, sp. nov., a new species from Motuo, Tibet, China, is described and illustrated here. It is closely similar to Euphorbia sikkimensis in having terete root, alternate leaves, well-developed pseudoumbellate inflorescence, cyathium, smooth and glaborus capsule, but Euphorbia motuogensis is clealy distinguishable by its pilose stems, involucral leaves color, secondary involucral leaves absent, cyathophylls number and color, and five similar glands. Furthermore, molecular phylogenetic analyses of sequences from both nuclear ribosomal ITS confirm that this species is distinct from morphologically similar species in this subgenus.

Leptolejeunea nigra (Lejeuneaceae), a new species with brownish black ocelli based upon morphology and DNA sequences

Phytotaxa ◽  
2019 ◽  
Vol 427 (1) ◽  
pp. 31-42
Author(s):  
LEI SHU ◽  
RUI-LIANG ZHU
Keyword(s):  
New Species ◽  
Molecular Phylogeny ◽  
Dna Sequences ◽  
Phylogenetic Analyses ◽  
Morphological Characters ◽  
Time Span ◽  
Molecular Dating ◽  
Molecular Phylogenetic ◽  
Brownish Black ◽  
A New Species

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.

scholarly journals Semiaquilegia danxiashanensis (Ranunculaceae), a new species from Danxia Shan in Guangdong, southern China

Phytotaxa ◽  
2019 ◽  
Vol 405 (1) ◽  
pp. 1 ◽  
Author(s):  
JIAN-JUN ZHOU ◽  
ZHANG-PING HUANG ◽  
JIA-HUI LI ◽  
SCOTT HODGES ◽  
WEI-SHENG DENG ◽  
...  
Keyword(s):  
New Species ◽  
Southern China ◽  
Phylogenetic Analyses ◽  
Separate Species ◽  
F Region ◽  
Phylogenetic Studies ◽  
Molecular Phylogenetic ◽  
Nuclear Its ◽  
A New Species ◽  
Northern Guangdong

Based on morphological and molecular phylogenetic studies, Semiaquilegia danxiashanensis, a new species from Danxia Shan in northern Guangdong, southern China, is described and illustrated. This species is easily distinguishable from each of other three known species in the genus by characters of the flowers and fruits. In addition, molecular phylogenetic analyses of both the nuclear ITS and the plastid trnL-F region strongly supported S. danxiashanensis as a separate species from other species of Semiaquilegia. We provide a detailed morphological and habitat description, distribution, as well as colour photographs and illustrations of the new species.

A new species of Heimioporus (Boletaceae) from southern China

Phytotaxa ◽  
2019 ◽  
Vol 415 (4) ◽  
pp. 179-188
Author(s):  
XIANG-NYU CHEN ◽  
MING ZHANG ◽  
TAI-HUI LI ◽  
NIAN-KAI ZENG
Keyword(s):  
New Species ◽  
Southern China ◽  
Phylogenetic Analyses ◽  
Elongation Factor ◽  
Morphological Characters ◽  
Molecular Data ◽  
Translation Elongation ◽  
Distinct Member ◽  
Elongation Factor 1 ◽  
A New Species

Heimioporus sinensis, collected from tropical and subtropical areas of China, is introduced as a new species based on both morphological characters and molecular data. The species is characterized by the purplish red to deep magenta pileus, the reticulated stipe, the irregularly reticulate to reticulate-alveolate basidiospores 11.5–13.5 × 8–9.5 μm, and a trichodermal to intricately trichodermal pileipellis. Phylogenetic analyses based on the nuc 28S rDNA D1-D2 domains (28S) and the translation elongation factor 1-α gene (tef1-α) showed that H. sinensis is a distinct member of the genus Heimioporus in the subfamily Xerocomoideae.

scholarly journals Morphometric and phylogenetic analyses of Serpentirhabdias viperidicus n. sp. (Nematoda: Rhabdiasidae) from the lancehead snake Bothrops moojeni Hoge, 1966 (Reptilia: Serpentes: Viperidae) in Brazil

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 ◽  
...  
Keyword(s):  
New Species ◽  
Phylogenetic Analyses ◽  
Morphological Characters ◽  
Neotropical Region ◽  
South American ◽  
Paulo State ◽  
Molecular Approaches ◽  
Molecular Phylogenetic ◽  
Bothrops Moojeni ◽  
A New Species

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.

Two new Pythium species from southern China based on morphological and molecular characters

Phytotaxa ◽  
2020 ◽  
Vol 432 (3) ◽  
pp. 263-273
Author(s):  
JIA-JIA CHEN ◽  
HUI FENG ◽  
WEI SONG ◽  
XIAO-BO ZHENG
Keyword(s):  
New Species ◽  
Ribosomal Rna ◽  
Southern China ◽  
Phylogenetic Analyses ◽  
Pythium Species ◽  
Internal Transcribed Spacer Region ◽  
Two New Species ◽  
Molecular Phylogenetic ◽  
I Gene ◽  
Molecular Characters

Two new species of Pythium, namely P. subinflatum and P. xuzhouense, from soybean (Glycine max) in southern China are described based on their morphology and molecular phylogenetic analyses inferred from the internal transcribed spacer region of the ribosomal RNA gene and mitochondrial cytochrome c oxidase subunit I gene. Pythium subinflatum is characterized by globose to sub-globose or ovoid hyphal swellings, filamentous inflated sporangia, smooth oogonia, mostly diclinous antheridia, elongated along the oogonial stalk, subcircular, subglobose or fist-shaped antheridial cells, and aplerotic and slightly thick-walled oospores (2–3.5 µm); P. xuzhouense differs from other species in the genus by filamentous or lobulated sporangia, smooth oogonia, mostly diclinous, sometimes monoclinous antheridia, subclavate, falcate or semicircle to subcircular antheridial cells, and plerotic or nearly plerotic and thin-walled oospores (0.5–1.5 µm). In addition, the two new species are compared to closely related Pythium species regarding their phylogenetic positions and morphological features.

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