scholarly journals Paxillus orientalis sp. nov. (Paxillaceae, Boletales) from south-western China based on morphological and molecular data and proposal of the new subgenus Alnopaxillus

2013 ◽  
Vol 13 (2) ◽  
pp. 333-342 ◽  
Author(s):  
Matteo Gelardi ◽  
Alfredo Vizzini ◽  
Egon Horak ◽  
Enrico Ercole ◽  
Samuele Voyron ◽  
...  
Keyword(s):  
Molecular Data ◽  
Western China ◽  
New Subgenus ◽  
Morphological And Molecular Data

Notes on Carex (Cyperaceae) from China (VI): the identity of Carex retrofracta Kük. (sect. Confertiflorae)

Phytotaxa ◽  
2020 ◽  
Vol 429 (2) ◽  
pp. 135-147
Author(s):  
XIAO-FENG JIN ◽  
YONG-DI LIU ◽  
YI-FEI LU ◽  
WEN-YAN SUN ◽  
HONG WANG
Keyword(s):  
Molecular Data ◽  
The Other ◽  
Western China ◽  
Molecular Variation ◽  
Type Specimens ◽  
New Subspecies ◽  
Diagnostic Characters ◽  
Putative Species ◽  
Southern Hunan ◽  
Morphological And Molecular Data

Carex retrofracta is a sedge belonging to section Confertiflorae and endemic from eastern to south-western China. Based on a comparison of the type specimens for Carex purpureotincta, C. haematorrhyncha (C. purpureotincta var. sphaerocarpa), C. xiangxiensis and C. retrofracta, and an analysis of morphological and molecular variation within and among populations, we could not find consistent diagnostic characters to differentiate all four of these putative species. Consequently, all of these taxa are considered to be conspecific and reduced to synonym of Carex retrofracta, the oldest name among them, expanding the distribution of this species to the provinces of Anhui, Guangxi, Guizhou, Hubei, Hunan, Sichuan, Taiwan and Zhejiang. Populations from southern Hunan and northern Guangxi were found to be distinct from the other samples of Carex retrofracta in both morphological and molecular data, and are described here as a new subspecies, which differs from C. retrofracta in having glabrous leaves and shorter perigynia.

scholarly journals The species of the bee genus Centris of the “hyptidis group” revisited with the description of Centris (Anisoctenodes) new subgenus (Hymenoptera: Apidae: Centridini)

2020 ◽  
Author(s):  
Felipe Vivallo
Keyword(s):  
Type Species ◽  
Molecular Data ◽  
New Taxon ◽  
Distribution Map ◽  
Diagnostic Characters ◽  
New Subgenus ◽  
Morphological And Molecular Data

In this paper, the species of Centris of the “hyptidis group” are revisited, proposing to recognize them as members of Anisoctenodes subgen. nov., a new subgenus supported by morphological and molecular data. The species included in this new taxon are C. hyptidis Ducke, 1908 (type-species), C. hyptidoides Roig-Alsina, 2000, C. thelyopsis Vivallo & Melo, 2009 and C. anisitsi (Schrottky, 1908), transferring this latter from Centris (Xanthemisia) Moure, 1945. An updated key, information on the type depository, a distribution map, photographs of both sexes as well as of the diagnostic characters of the new subgenus are also provided.

scholarly journals Relicthemisia, a new subgenus of the oil-collecting bee genus Centris Fabricius, 1804 with notes on distribution and host plants of C. xanthomelaena Moure & Castro, 2001 (Hymenoptera: Apidae)

2021 ◽  
Vol 760 ◽  
pp. 1-15
Author(s):  
Felipe Vivallo ◽  
Fernando César Vieira Zanella
Keyword(s):  
Host Plants ◽  
Molecular Data ◽  
Northeastern Brazil ◽  
Semiarid Region ◽  
Relict Species ◽  
New Subgenus ◽  
Distinct Lineage ◽  
Morphological And Molecular Data ◽  
Lineage Distribution

Centris xanthomelaena Moure & Castro, 2001 is a relict species, endemic to northeastern Brazil and broadly recorded within the semiarid region of Caatinga xerophilous open vegetation. It was originally included in the subgenus Paracentris Cameron, 1903 but posteriorly interpreted as remotely related to it or to the subgenus Centris s. str. Fabricius, 1804. In this paper it is proposed to recognize this species as the single member of the monotypic Relicthemisia, a new subgenus which belongs to the ‘Centris group’, one of the main internal lineages of the genus. The proposition of this new subgenus is based on both, morphological and molecular data which indicate its long history as a distinct lineage. Distribution records, floral hosts as well as photographs of both sexes of C. xanthomelaena are also provided.

Iris zhaoana, a new name for Iris potaninii var. ionantha (I. sect. Pseudoregelia ser. Tigridiae, Iridaceae) from China: evidence from morphological and plastid DNA data

Phytotaxa ◽  
2020 ◽  
Vol 470 (4) ◽  
pp. 282-289
Author(s):  
MANUEL B. CRESPO ◽  
NINA B. ALEXEEVA ◽  
YUE E. XIAO
Keyword(s):  
Plastid Dna ◽  
Molecular Data ◽  
High Elevation ◽  
Western China ◽  
New Name ◽  
Central Asian ◽  
Morphological And Molecular Data ◽  
Shape And Size ◽  
Deep Violet

The new name Iris zhaoana is proposed to replace I. potaninii var. ionantha, which is applied to a dwarf bearded iris described from western China, usually included in I. sect. Psammiris. It is a plant occurring at high elevation and showing roots thick and grey; leaves glaucous-green, blunt to subacute and shortly mucronate at apex; flower solitary, dichromic, bluish-violet, with standards and falls similar in shape and size; falls more richly blotched with deep-violet and with whitish areas; beard of white and blue-white hairs, tipped yellow; fruits globose-ovoid to ellipsoid, shortly acuminate at apex; and seed with a comparatively prominent, large, yellow aril. These features closely relate I. zhaoana to members of I. sect. Pseudoregelia, namely to I. tigridia, with which it has sometimes been confused. Morphological and molecular data are discussed here that support recognition of the Central Asian plant at species rank and its inclusion in I. sect. Pseudoregelia ser. Tigridiae.

New Record of a Genus and Species of Odd-Scaled Snake (Serpentes: Xenodermidae) from China

2020 ◽  
Vol 27 (6) ◽  
pp. 348-352
Author(s):  
Cai De Bo ◽  
Zening Chen ◽  
Jun Gao ◽  
Ding Li ◽  
Rong Dai
Keyword(s):  
New Record ◽  
First Record ◽  
Molecular Data ◽  
Extent Of Occurrence ◽  
Morphological And Molecular Data

Parafimbrios has been reported in Laos, Thailand and Vietnam. In this paper, based on morphological and molecular data, Parafimbrios lao was reported as the first record of a genus and species of odd-scaled snake in China. This record extends the extent of occurrence to 65,000 km2 and the area of occurrence to 20 km2.

Analysis of the differences between Syntormon pallipes and S. pseudospicatus (Diptera: Dolichopodidae): morphological and molecular data

2019 ◽  
Vol 28 (2) ◽  
pp. 305-316
Author(s):  
M.A. Chursina ◽  
I.Ya. Grichanov
Keyword(s):  
Dna Analysis ◽  
Distinct Species ◽  
Molecular Data ◽  
Wing Shape ◽  
Morphological Data ◽  
12S Rrna ◽  
Separate Species ◽  
Geometric Morphometric ◽  
Geometric Morphometric Analysis ◽  
Morphological And Molecular Data

The recent catalogues of the family Dolichopodidae considered Syntormon pallipes (Fabricius, 1794) and S. pseudospicatus Strobl, 1899 as separate species. In this study, we used three approaches to estimate the significance of differences between the two species: molecular analysis (COI and 12S rRNA sequences), analysis of leg colour characters and geometric morphometric analysis of wing shape. The morphological data confirmed the absence of significant differences between S. pallipes and S. pseudospicatus found in the DNA analysis. Significant differences in the wing shape of two species have not been revealed. Hence, according to our data, there is no reason to consider S. pseudospicatus as a distinct species.

scholarly journals Loose Ends in the Cortinarius Phylogeny: Five New Myxotelamonoid Species Indicate a High Diversity of These Ectomycorrhizal Fungi with South American Nothofagaceae

Life ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 420
Author(s):  
María Eugenia Salgado Salomón ◽  
Carolina Barroetaveña ◽  
Tuula Niskanen ◽  
Kare Liimatainen ◽  
Matthew E. Smith ◽  
...  
Keyword(s):  
New Species ◽  
Current Knowledge ◽  
Phylogenetic Analyses ◽  
Molecular Data ◽  
Global Scale ◽  
South American ◽  
Edible Fungi ◽  
Rdna Its ◽  
Morphological And Molecular Data ◽  
High Diversity

This paper is a contribution to the current knowledge of taxonomy, ecology and distribution of South American Cortinarius (Pers.) Gray. Cortinarius is among the most widely distributed and species-rich basidiomycete genera occurring with South American Nothofagaceae and species are found in many distinct habitats, including shrublands and forests. Due to their ectomycorrhizal role, Cortinarius species are critical for nutrient cycling in forests, especially at higher latitudes. Some species have also been reported as edible fungi with high nutritional quality. Our aim is to unravel the taxonomy of selected Cortinarius belonging to phlegmacioid and myxotelamonioid species based on morphological and molecular data. After widely sampling Cortinarius specimens in Patagonian Nothofagaceae forests and comparing them to reference collections (including holotypes), we propose five new species of Cortinarius in this work. Phylogenetic analyses of concatenated rDNA ITS-LSU and RPB1 sequences failed to place these new species into known Cortinarius sections or lineages. These findings highlight our knowledge gaps regarding the fungal diversity of South American Nothofagaceae forests. Due to the high diversity of endemic Patagonian taxa, it is clear that the South American Cortinarius diversity needs to be discovered and described in order to understand the evolutionary history of Cortinarius on a global scale.

The status of Myriangiaceae (Dothideomycetes)

Phytotaxa ◽  
2014 ◽  
Vol 176 (1) ◽  
pp. 219 ◽  
Author(s):  
ASHA J. DISSANAYAKE ◽  
RUVISHIKA S. JAYAWARDENA ◽  
SARANYAPHAT BOONMEE ◽  
KASUN M. THAMBUGALA ◽  
QING TIAN ◽  
...  
Keyword(s):  
Sequence Data ◽  
Molecular Data ◽  
Molecular Sequence Data ◽  
Molecular Sequence ◽  
The Family ◽  
The Status ◽  
Sexual State ◽  
Morphological And Molecular Data ◽  
Asexual State ◽  
Molecular Characters

The family Myriangiaceae is relatively poorly known amongst the Dothideomycetes and includes genera which are saprobic, epiphytic and parasitic on the bark, leaves and branches of various plants. The family has not undergone any recent revision, however, molecular data has shown it to be a well-resolved family closely linked to Elsinoaceae in Myriangiales. Both morphological and molecular characters indicate that Elsinoaceae differs from Myriangiaceae. In Elsinoaceae, small numbers of asci form in locules in light coloured pseudostromata, which form typical scab-like blemishes on leaf or fruit surfaces. The coelomycetous, “Sphaceloma”-like asexual state of Elsinoaceae, form more frequently than the sexual state; conidiogenesis is phialidic and conidia are 1-celled and hyaline. In Myriangiaceae, locules with single asci are scattered in a superficial, coriaceous to sub-carbonaceous, black ascostromata and do not form scab-like blemishes. No asexual state is known. In this study, we revisit the family Myriangiaceae, and accept ten genera, providing descriptions and discussion on the generic types of Anhellia, Ascostratum, Butleria, Dictyocyclus, Diplotheca, Eurytheca, Hemimyriangium, Micularia, Myriangium and Zukaliopsis. The genera of Myriangiaceae are compared and contrasted. Myriangium duriaei is the type species of the family, while Diplotheca is similar and may possibly be congeneric. The placement of Anhellia in Myriangiaceae is supported by morphological and molecular data. Because of similarities with Myriangium, Ascostratum (A. insigne), Butleria (B. inaghatahani), Dictyocyclus (D. hydrangea), Eurytheca (E. trinitensis), Hemimyriangium (H. betulae), Micularia (M. merremiae) and Zukaliopsis (Z. amazonica) are placed in Myriangiaceae. Molecular sequence data from fresh collections is required to confirm the relationships and placement of the genera in this family.

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