The taxonomic revision of Asian Aristolochia (Aristolochiaceae) I: Confirmation and illustration of A. austroszechuanica, A. faucimaculata and A. yunnanensis var. meionantha from China

Phytotaxa ◽  
2016 ◽  
Vol 261 (2) ◽  
pp. 137 ◽  
Author(s):  
XIN-XIN ZHU ◽  
SHUAI LIAO ◽  
LIN ZHANG ◽  
ZHANG-HUA WANG ◽  
CHENG DU ◽  
...  
Keyword(s):  
Related Species ◽  
Taxonomic Revision ◽  
Field Work ◽  
Distinct Species ◽  
Careful Examination ◽  
Extensive Field ◽  
Species Descriptions

Through extensive field work, careful examination of numerous specimens, and color photos taken in the field and study in relation to published accounts of Aristolochia (Aristolochiaceae), we conclude that A. austroszechuanica, A. faucimaculata and A. yunnanensis var. meionantha are distinct species. Detailed morphological comparisons with related species, descriptions and illustrations are presented. A. yunnanensis var. meionantha is raised into Aristolochia meionantha. Furthermore, detailed distributions, citation of studied specimens and nomenclatural notes for these species are also provided.

The taxonomic revision of Asian Aristolochia (Aristolochiaceae) II: Identities of Aristolochia austroyunnanensis and A. dabieshanensis, and A. hyperxantha—a new species from Zhejiang, China

Phytotaxa ◽  
2017 ◽  
Vol 313 (1) ◽  
pp. 61 ◽  
Author(s):  
XIN-XIN ZHU ◽  
SHUAI LIAO ◽  
ZENG-PENG SUN ◽  
AI-GUO ZHEN ◽  
JIN-SHUANG MA
Keyword(s):  
New Species ◽  
Leaf Shape ◽  
Taxonomic Revision ◽  
Flower Color ◽  
Field Work ◽  
Distinct Species ◽  
Careful Examination ◽  
Extensive Field ◽  
A New Species

Through extensive field work and careful examination of specimens, live plant photos, and related publications of Aristolochia, we conclude that A. austroyunnanensis and A. dabieshanensis are distinct species. Meanwhile, Aristolochia hyperxantha, a new species from northwestern Zhejiang, China, is described and illustrated. The new species is similar to A. mollissima in the flower color, but it differs in the indumentum and shape of leaf. Aristolochia hyperxantha is also similar to A. dabieshanensis in the leaf shape, but it differs in the shape and color of flower.

A refined circumscription of Notobubon striatum and the resurrection of Dregea collina Ecklon & Zeyher (Apiaceae, Apioideae)

Phytotaxa ◽  
2016 ◽  
Vol 266 (1) ◽  
pp. 27 ◽  
Author(s):  
ANTHONY R. MAGEE ◽  
ODETTE E. CURTIS ◽  
B-E. VAN WYK
Keyword(s):  
Conservation Status ◽  
Leaf Size ◽  
Type Specimen ◽  
Distinct Species ◽  
Critically Endangered ◽  
Type Material ◽  
New Combination ◽  
Careful Examination ◽  
Field Surveys ◽  
Extensive Field

Extensive field surveys of the Critically Endangered Central and Eastern Rûens Shale Renosterveld have uncovered that Notobubon striatum, as currently circumscribed, comprises two distinct species. Upon careful examination of the type material it has become clear that names exist for both species. The type specimen of N. striatum clearly matches the lesser known species, a large shrub, ca. 1 m. tall, with a powerful anise-scent and which is restricted to the banks of seasonal rivers and watercourses in the Central and Eastern Rûens Shale Renosterveld. The second and better known entity, with a wider distribution, corresponds to the type material of Dregea collina Ecklon & Zeyher. As such, a new combination, Notobubon collinum (Ecklon & Zeyher) Magee, is here made to accommodate this taxon, restricted to dry quartz and silcrete patches or outcrops in Eastern Rûens Shale Renosterveld. In their revised circumscriptions N. striatum and N. collinum are readily distinguished by habit, scent, leaf size and division, as well as leaf lobe shape and sepal size. Comprehensive descriptions of both species are provided, together with notes on their ecology and conservation status, and the existing key to the species of Notobubon updated. This brings the number of recognised species in the genus to thirteen.

A TAXONOMIC REVISION OF THE GENUS PSEUDOPHYSALOPTERA BAYLIS, 1934 (NEMATODA: PHYSALOPTERIDAE)

1963 ◽  
Vol 41 (6) ◽  
pp. 1069-1077 ◽  
Author(s):  
G. A. Schad
Keyword(s):  
North American ◽  
Related Species ◽  
Taxonomic Revision ◽  
Distinct Species ◽  
Closely Related Species ◽  
Tentative Identification

The genus Pseudophysaloptera, recognized as a genus distinct from Physatoptera, is tentatively considered monotypic. The several species previously assigned to the genus Pseudophysaloptera, and the closely related species Physaloptera kotlani, have been reduced to one polytypic species, Pseudophysaloptera formosana, with two subspecies, P. f. formosana and P. f. soricina. The former occurs in Oriental species of Suncus, while the latter occurs in Palaearctic and Ethiopian soricid insectivores. North American specimens, which may represent a distinct species, are tentatively assigned to P. f. soricina. Presently available collections are only sufficient for a tentative identification of the Nearctic form.

Is the taxonomy of Brachycephalus (Anura: Brachycephalidae) in need of rescue? A reply to Condez et al. (2017)

Zootaxa ◽  
2017 ◽  
Vol 4350 (3) ◽  
pp. 587
Author(s):  
MARCIO R. PIE ◽  
LUIZ F. RIBEIRO ◽  
MARCOS R. BORNSCHEIN
Keyword(s):  
New Species ◽  
Atlantic Forest ◽  
Research Group ◽  
Field Work ◽  
Brazilian Atlantic Forest ◽  
Additional Species ◽  
The Past ◽  
Extensive Field ◽  
The Many ◽  
Species Descriptions

Brachycephalus is a fascinating genus of miniaturized frogs endemic to the Brazilian Atlantic Forest (Bornschein et al. 2016a). Given the many new species that have been recently discovered (20 species over the past 10 years [Frost 2017]) and their often microendemic distribution (see Bornschein et al. 2016a), there has been an increasing awareness about the need for more extensive field work to locate additional new species, to describe their geographical distributions, and to devise comprehensive efforts to ensure their conservation. In a recent correspondence in Zootaxa, Condez et al. (2017) singled out nine of those new species that have been described by our research group (Ribeiro et al. 2015; Pie & Ribeiro 2015; Bornschein et al. 2016b); two additional species (Ribeiro et al. 2017) were described after their paper was published. According to Condez et al. (2017), our species descriptions included “inadequate diagnoses, which lacked indispensable information for any further comparisons among species” (p. 395). Herein, we explore the extent to which their arguments would undermine the validity of those species. 

Taxonomic revision of the neotropical genus Homalolepis Turcz. (Simaroubaceae)

Phytotaxa ◽  
2018 ◽  
Vol 366 (1) ◽  
pp. 1 ◽  
Author(s):  
MARCELO FERNANDO DEVECCHI ◽  
WILLIAM WAYT THOMAS ◽  
JOSÉ RUBENS PIRANI
Keyword(s):  
New Species ◽  
Central America ◽  
Natural Populations ◽  
Taxonomic Revision ◽  
Field Work ◽  
Infrageneric Classification ◽  
Distribution Maps ◽  
Species Complexes ◽  
Extensive Field ◽  
Narrow Endemics

Homalolepis Turcz. is a neotropical, monophyletic genus, recently reestablished as a segregate from Simaba Aubl., based on molecular and morphological grounds. As here defined, Homalolepis comprises 28 species, mainly distributed in tropical South America, with one species extending to Central America. Most species occur within the Cerrado and Atlantic forest domains in Brazil and only a few species occur in the Caatinga and Amazonian domains or in other countries. Most of the species are narrow endemics, and two (H. suaveolens and H. maiana) are presumably extinct. The present revision treatment is primarily based on the examination of about 1300 specimens from 58 herbaria. Natural populations of 20 species were also studied. Extensive field work improved the representativeness of collections of several species which were poorly known until now, and it was critical for achieving accurate species circumscriptions, especially for some species complexes present in the genus. Twenty-three species were transferred from Simaba to Homalolepis, seven names lectotypified, an epitype designated, seven new species described, and one reestablished. The infrageneric classification is reevaluated, with an updated morphological circumscription of two traditional sections. This revision provides the taxonomic data on nomenclatural types, including synonymies, morphological descriptions, etymology of species names, common names and uses, illustrations and photos, and brief discussions on phenology, taxonomy and nomenclature. Distribution maps are provided for each species, along with biogeographical and ecological comments.

Systematics of Ichnanthus hoffmannseggii and allies (Poaceae, Paspaleae) based on molecular and morphological evidence

Phytotaxa ◽  
2016 ◽  
Vol 267 (4) ◽  
pp. 263 ◽  
Author(s):  
CHRISTIAN SILVA ◽  
GERRIT DAVIDSE ◽  
ALESSANDRA SELBACH SCHNADELBACH ◽  
REYJANE PATRÍCIA DE OLIVEIRA
Keyword(s):  
Related Species ◽  
Phylogenetic Relationships ◽  
Field Work ◽  
Distinct Species ◽  
Morphological Evidence ◽  
Phylogenetic Study ◽  
Sem Images ◽  
Distribution Maps ◽  
The Relationship ◽  
Panicoid Grass

Ichnanthus hoffmannseggii is an annual panicoid grass that occurs in sandy and open areas of Brazil and currently includes I. piresii in its synonymy. However, herbarium and field work led us to question this circumscription. In a previous phylogenetic study, a specimen with morphological affinities to I. hoffmannseggii was recovered as more related to Echinolaena oplismenoides (currently I. oplismenoides). This study aimed to clarify the relationship between I. hoffmannseggii, I. oplismenoides, and I. piresii using molecular and macro- and micromorphological data. We recognize these three taxa as distinct species and provide characters for distinguishing them and related species, including descriptions, comments, illustrations, distribution maps, SEM images of the upper anthecium, and phylogenetic relationships.

scholarly journals A taxonomic revision of Selaginella monospora Spring (Selaginellaceae)

Turczaninowia ◽  
2021 ◽  
Vol 24 (3) ◽  
pp. 175-193
Author(s):  
Alexander P. Shalimov ◽  
Xian-Chun Zhang
Keyword(s):  
Related Species ◽  
Phylogenetic Analyses ◽  
Taxonomic Revision ◽  
Distinct Species ◽  
Morphological Characters ◽  
Closely Related Species ◽  
Molecular Phylogenetic ◽  
The Himalaya ◽  
Made In

During a taxonomic revision of Selaginella from the Himalaya which is a part of the ongoing “Flora of Pan-Himalaya” project, we studied the taxonomy of Selaginella monospora and its closely related species. We found that S. microclada once treated as a synonym of S. monospora should be accepted as a distinct species. In contrast, S. trichophylla, S. monospora var. ciliolata, S. medogensis, and S. effusa var. dulongjiangensis are reduced to synonymy of S. monospora based on molecular phylogenetic analyses and morphological characters. Selaginella monospora is characterized by denticulate to ciliolate leaves and strongly dimorphic sporophylls vs. denticulate leaves and slightly dimorphic sporophylls in S. microclada. A lectotypification of S. medogensis was also made in the present study.

Reestablishment of Hymenaea travassii (Leguminosae, Caesalpinioideae), a species endemic to the Bolivian Chaco

Phytotaxa ◽  
2015 ◽  
Vol 219 (1) ◽  
pp. 96 ◽  
Author(s):  
Rafael Barbosa Pinto ◽  
Vidal De Freitas Mansano ◽  
Ana Maria Goulart de Azevedo Tozzi
Keyword(s):  
Detailed Analysis ◽  
Geographical Distribution ◽  
Related Species ◽  
Taxonomic Revision ◽  
Distinct Species ◽  
Species Description ◽  
Type Material ◽  
Shape And Size

In Lee & Langenheim’s taxonomic revision of the genus Hymenaea (Leguminosae, Caesalpinioideae), the species Hymenaea travassii was considered a species of dubious status.  A detailed analysis of the type material and additional specimens, clearly indicates, however, that this is a distinct species, endemic to the Bolivian “chaco”. The species can be distinguished by a combination of its habit, the texture of the bark and the shape and size of its leaflets. This study proposes the reestablishment of Hymenaea travassii as a distinct species, based on morphology. A species description, a key to distinguish Hymenaea travassii from related species, and a summary of its geographical distribution are presented, together with an illustration.

scholarly journals Comparative genomics suggests a taxonomic revision of the Staphylococcus cohnii species complex

2021 ◽  
Author(s):  
Anna Lavecchia ◽  
Matteo Chiara ◽  
Caterina De Virgilio ◽  
Caterina Manzari ◽  
Carlo Pazzani ◽  
...  
Keyword(s):  
Comparative Genomics ◽  
Species Complex ◽  
Large Scale ◽  
Genomic Sequence ◽  
Bacterial Species ◽  
Taxonomic Revision ◽  
Distinct Species ◽  
The Novel ◽  
Staphylococcus Cohnii ◽  
Taxonomic Assignments

Abstract Staphylococcus cohnii (SC), a coagulase-negative bacterium, was first isolated in 1975 from human skin. Early phenotypic analyses led to the delineation of two subspecies (subsp.), Staphylococcus cohnii subsp. cohnii (SCC) and Staphylococcus cohnii subsp. urealyticus (SCU). SCC was considered to be specific to humans whereas SCU apparently demonstrated a wider host range, from lower primates to humans. The type strains ATCC 29974 and ATCC 49330 have been designated for SCC and SCU, respectively. Comparative analysis of 66 complete genome sequences—including a novel SC isolate—revealed unexpected patterns within the SC complex, both in terms of genomic sequence identity and gene content, highlighting the presence of 3 phylogenetically distinct groups. Based on our observations, and on the current guidelines for taxonomic classification for bacterial species, we propose a revision of the SC species complex. We suggest that SCC and SCU should be regarded as two distinct species: SC and SU (Staphylococcus urealyticus), and that two distinct subspecies, SCC and SCB (SC subsp. barensis, represented by the novel strain isolated in Bari) should be recognized within SC. Furthermore, since large scale comparative genomics studies recurrently suggest inconsistencies or conflicts in taxonomic assignments of bacterial species, we believe that the approach proposed here might be considered for more general application.

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