Taxonomic revision of Allium cyathophorum (Amaryllidaceae)

Phytotaxa ◽  
2019 ◽  
Vol 415 (4) ◽  
pp. 240-246 ◽  
Author(s):  
MIN JIE LI ◽  
JIAN QUAN LIU ◽  
XIAN LIN GUO ◽  
QUN YING XIAO ◽  
XING JIN HE
Keyword(s):  
New Species ◽  
Genetic Polymorphisms ◽  
Taxonomic Revision ◽  
Morphological Characters ◽  
Distribution Range ◽  
Intermediate Zone ◽  
A New Species

Our integrated evidence indicates morphological and genetic polymorphisms in Allium cyathophorum and thus the need for a taxonomic revision. First, A. cyathophorum var. farreri is reinstated as A. farreri. Second, a cryptic allotetraploid population geographically confined to the intermediate zone between A. cyathophorum and A. farreri is described here as a new species named A. tetraploideum. Morphological characters that differentiate these three species from each other, as well as information on their distribution range and habitat, are provided.

scholarly journals Taxonomic revision of the Mesoamerican genus Spathacanthus (Justicieae, Acanthoideae, Acanthaceae)

PhytoKeys ◽  
2020 ◽  
Vol 144 ◽  
pp. 31-55
Author(s):  
Mireya Burgos-Hernández ◽  
Gonzalo Castillo-Campos
Keyword(s):  
New Species ◽  
Costa Rica ◽  
Cladistic Analysis ◽  
Taxonomic Revision ◽  
Morphological Characters ◽  
Distribution Range ◽  
Distribution Map ◽  
Ecological Data ◽  
Southern Mexico ◽  
A New Species

Spathacanthus is a Mesoamerican genus that occurs in tropical and temperate regions from southern Mexico to Costa Rica; its taxonomy has not been updated for two decades. In view of the fact that a new species has been discovered and that the interspecific affinities in this genus have not been addressed to date, the present study aims to revise the genus Spathacanthus. Specimens of plants of this genus collected from across the distribution range and deposited in herbaria and digital databases were reviewed. In parallel, a cladistic analysis was carried out, based on morphological characters in order to examine relationships between species. Four species of Spathacanthus were recognised: one endemic to Costa Rica, another micro-endemic to Veracruz in Mexico, one more restricted to the forests of Mexico and Guatemala and the last one more widely distributed. Reflecting the previously limited knowledge of the group, many of the specimens that we studied had been misidentified. A key to differentiate these species is provided, supplemented with photographs, drawings and other illustrations, morphological descriptions, synonymy and ecological data. Results, presented here, extend the distribution range of some taxa and a distribution map is presented. The cladistic analysis recovered the genus as monophyletic, showing that S. hoffmannii and S. hahnianus are sister taxa and S. magdalenae was found to be more closely related to S. parviflorus. These plants are vulnerable to degradation and habitat loss.

Taxonomic revision of Aegla lata Bond-Buckup & Buckup, 1994 (Decapoda: Anomura: Aeglidae), with the description of a new species of Aegla Leach, 1820 from the Upper Paraná Ecoregion, Brazil

2020 ◽  
Vol 40 (4) ◽  
pp. 425-434
Author(s):  
Ingrid C Marçal ◽  
Fernanda P Páez ◽  
Lenice Souza-Shibatta ◽  
Silvia H Sofia ◽  
Gustavo M Teixeira
Keyword(s):  
New Species ◽  
River Basin ◽  
Taxonomic Revision ◽  
Morphological Characters ◽  
The Body ◽  
Type Locality ◽  
Morphological Data ◽  
Molecular Evidence ◽  
Coi Mtdna ◽  
A New Species

Abstract Aegla lata Bond-Buckup & Buckup, 1994 is considered extinct in the type locality. New populations of this species, however, have been found in northern Paraná state, Brazil. We revised the taxonomy of A. lata based on morphological data obtained from the type material and specimens recently obtained from streams of the Tibagi River sub-basin, Paranapanema River basin, Upper Paraná Ecoregion. Moreover, Aegla jacutingan. sp. is described and illustrated. The new species resembles A. lata in the shapes of the body and chelipeds. Both species are nevertheless separated by particular morphological characters of the carapace, chelipeds, and epimeron as well as by molecular (COI mtDNA) differences. Both species can be distinguished from their congeners based on morphological and molecular evidence.

Taxonomic revision of the Colombian Tityus (Archaeotityus) (Scorpiones, Buthidae) species: a morphological and morphometric approach, with a description of a new species

Zootaxa ◽  
2019 ◽  
Vol 4660 (1) ◽  
pp. 1-94
Author(s):  
JAIRO A. MORENO-GONZÁLEZ ◽  
RANULFO GONZÁLEZ O. ◽  
EDUARDO FLÓREZ D.
Keyword(s):  
Principal Component Analysis ◽  
New Species ◽  
New Records ◽  
Principal Component ◽  
Taxonomic Revision ◽  
Component Analysis ◽  
Morphological Characters ◽  
Species Level ◽  
Qualitative And Quantitative ◽  
A New Species

We present a taxonomic revision of the Colombian Tityus (Archaeotityus) species based on morphological and morphometric evidence. We examined more than 385 specimens and evaluated new and previously used qualitative and quantitative morphological characters. We redescribe the Colombian species and present morphological characters for both sexes and an emended diagnosis for the subgenus Tityus (Archaeotityus). We describe a new species Tityus guane sp. nov. from Santander department, Colombia, Tityus betschi Lourenço 1992 is synonymized with Tityus parvulus Kraepelin, 1914, and Tityus wayuu Rojas-Runjaic & Armas, 2007 is synonymized with Tityus tayrona Lourenço, 1991. We measured 186 specimens and performed a multivariate principal component analysis (PCA) for 34 selected morphometric ratios for each sex. We found that a few morphological ratios support species level distinctions within the Colombian species. We provide updated distributional maps with new records and an identification key for both sexes. Furthermore, we provide an updated checklist for the subgenus and a discussion about the character systems used within Tityus (Archaeotityus). The new morphological characters proposed and the traditional morphometry examined with a PCA are useful for studying Tityus (Archaeotityus) taxonomy.

Morphological groupings within Euphlyctis (Anura: Dicroglossidae) and description of a new species from the surroundings of Thattekad Bird Sanctuary, Kerala, India

Zootaxa ◽  
2021 ◽  
Vol 4990 (2) ◽  
Author(s):  
K.P. DINESH ◽  
B.H. CHANNAKESHAVAMURTHY ◽  
P. DEEPAK ◽  
AVRAJJAL GHOSH ◽  
KAUSHIK DEUTI
Keyword(s):  
New Species ◽  
Sri Lanka ◽  
Indian Subcontinent ◽  
Morphological Characters ◽  
Distribution Range ◽  
General Distribution ◽  
Distribution Area ◽  
Reciprocal Monophyly ◽  
Genetic Population ◽  
A New Species

The skittering frog genus Euphlyctis is known to have a distribution range from Arabian Peninsula to Bangladesh through India and Sri Lanka. Although species descriptions were initiated about two centuries ago in the genus with a small number of species described, taxonomic identities and genetic information for many species are still incomplete / inaccurate. Here, we report the systematic status of this group, discuss a series of taxonomic issues, and describe a new species. Based on morphological characters and colour patterns, and their reciprocal monophyly in the molecular tree, two morphological groups, ‘cyanophlyctis group’ and ‘hexadactylus group’ are established within the genus Euphlyctis. We discuss the genetic identity for E. cyanophlyctis, described 220 years ago from the Indian subcontinent, from the surroundings of its type locality. E. mudigere is proposed as a junior synonym of E. cyanophlyctis as it was described from populations here considered to originate from the general distribution area of the latter taxon, and without substantial genetic divergence from other populations here attributed to E. cyanophlyctis. The potential of resurrection of Euphlyctis seistanica due to distinct genetic population in Iran is discussed; this lineage appears to be genetically rather similar to E. kalasgramensis, and the species distinctness of these two lineages requires further study. The validity of E. kalasgramensis is also discussed in the context of the historically earlier nomina, Rana bengalensis and Rana leschenaultii due to distribution range overlaps. The prospects of establishing either Rana cyanophlictis variety fulvus or Rana cyanophlictis variety flavens from Sri Lanka are also mentioned. Based on a comparative account, we report the discovery of a new species of skittering frog Euphlyctis kerala sp. nov. which has a restricted distribution in the western coastal plains of India, south of the Palghat gap. [http://zoobank.org/urn:lsid:zoobank.org:act:02B1DE04-C40C-4AAD-AC87-EF97673A4BF5]

scholarly journals Taxonomic revision of Sageretia (Rhamnaceae) from China I: identities of S. lucida, S. thea var. cordiformis and S. yunlongensis, with the description of a new species S. ellipsoidea

PhytoKeys ◽  
2021 ◽  
Vol 179 ◽  
pp. 13-28
Author(s):  
Yi Yang ◽  
Hua Peng ◽  
Hang Sun
Keyword(s):  
New Species ◽  
Fruit Size ◽  
Length Distribution ◽  
Taxonomic Revision ◽  
Morphological Characters ◽  
Early Summer ◽  
Woody Vine ◽  
A New Species

A taxonomic revision of Sageretia lucida, S. thea var. cordiformis and S. yunlongensis in China is presented. Sageretia lucida is revised in terms of morphological characters (habit, branchlet color, phyllotaxis and rachis length), distribution, habitat, and phenology; S. thea var. cordiformis is raised to S. cordiformis; and S. yunlongensis is excluded from the genus Sageretia and reduced to the synonym of Rhamnus nigricans. Furthermore, a new species, S. ellipsoidea, is erected based on the paratype collections of S. lucida. The new species morphologically differs from S. lucida in having reddish brown branchlets, opposite or subopposite phyllotaxis, shorter rachises, and flowering in spring or early summer. S. ellipsoidea is factually closest to S. hamosa as they share similar woody-vine habit and larger fruit size, and fruiting in winter, whereas the former can be easily recognized based on its smaller leaf blades, fewer lateral veins, shorter rachises, and ellipsoidal or elliptic-ovoid fruits.

Taxonomic revision and morphological cladistics analysis of the diatom genus Anorthoneis (Cocconeidaceae), with description of Anorthoneis arthus-bertrandii sp. nov.

Phytotaxa ◽  
2018 ◽  
Vol 336 (3) ◽  
pp. 201 ◽  
Author(s):  
Chiara PENNESI ◽  
ROKSANA MAJEWSKA ◽  
FRITHJOF A.S. STERRENBURG ◽  
CECILIA TOTTI ◽  
MARIO DE STEFANO
Keyword(s):  
Electron Microscopy ◽  
New Species ◽  
Central Area ◽  
Taxonomic Revision ◽  
Morphological Characters ◽  
Parsimony Method ◽  
Maximum Parsimony Method ◽  
Valve Margin ◽  
Diatom Genus ◽  
A New Species

We present here an ultrastructure-based revision of the diatom genus Anorthoneis using both light (LM) and electron microscopy (SEM). The original slides and type material of all known Anorthoneis species were analysed and new, previously unseen, morphological features of the frustules, such as rota-like vela and ligulate structures around the valve margin, were revealed. The phylogenetic relationships among Anorthoneis taxa were investigated based on morphological characters using a maximum parsimony method. This analysis indicated a large, well-supported clade that included taxa that exhibited similarities in external and internal details of the central areas in both raphe-sternum and sternum valves. Revealed synapomorphies within the genus include externally and internally transversely dilated central area on both sides of the raphe-sternum valve, externally transversely dilated central area on both sides of the sternum valve, sternum valve striae parallel at the center and radiate at the apices, and areolae with hymenes in both valves. During a survey a new species Anorthoneis arthus-bertrandii sp. nov., was found on seagrass leaves collected from Siladen Island (Indonesia). This taxon is sister to A. hyalina, but can be easily differentiated from the latter by smaller valve dimensions, central area size and shape, and rota-like vela occluding sternum valve areolae - a feature that has never been observed in other Anorthoneis taxa. 

scholarly journals Brownlowia latifiana (Malvaceae-Brownlowioideae), a new species from Terengganu, Peninsular Malaysia

Phytotaxa ◽  
2017 ◽  
Vol 298 (2) ◽  
pp. 134
Author(s):  
R. C. K. CHUNG ◽  
E. SOEPADMO
Keyword(s):  
New Species ◽  
Morphometric Analysis ◽  
Taxonomic Revision ◽  
Morphological Characters ◽  
Iucn Red List ◽  
Peninsular Malaysia ◽  
Conservation Assessment ◽  
Iucn Red List Categories ◽  
The Status ◽  
A New Species

A new species, Brownlowia latifiana (Malvaceae-Brownlowioideae), endemic to Terengganu, Peninsular Malaysia, is described and illustrated. This new species has most of its morphological characters that are related to those of the genus Jarandersonia. Therefore, a standard morphological taxonomic revision and morphometric analysis were carried out to assess the status of Brownlowia latifiana. Results of the morphometric analysis based on morphological characters showed that Brownlowia latifiana is embedded within the clades of Brownlowia but distanced from the clades Jarandersonia. Brownlowia formed a distinct clade in the clustering tree well separated from the Jarandersonia. A distribution map and a conservation assessment using the IUCN Red List categories and criteria are provided.

scholarly journals Octomeria lilliputana (Orchidaceae), a new species from Brazilian Atlantic Forest, State of Paraná, Brazil

Phytotaxa ◽  
2013 ◽  
Vol 105 (2) ◽  
pp. 39 ◽  
Author(s):  
WELLINGTON FORSTER ◽  
VINICIUS CASTRO SOUZA ◽  
FÁBIO DE BARROS
Keyword(s):  
New Species ◽  
Atlantic Forest ◽  
Taxonomic Revision ◽  
Morphological Characters ◽  
Brazilian Atlantic Forest ◽  
Data Deficient ◽  
A New Species ◽  
Forest Biome

While conducting a taxonomic revision of Octomeria, a new species from the Atlantic Forest biome, in Paraná State, Brazil was found. The species is here described and illustrated as Octomeria lilliputana. Based on morphological characters, this species belongs to Octomeria section Octomeria subsection Octomeria. The species is provisionally ascribed to the Data Deficient (DD) category of IUCN.

A New Species of Justicia (Acanthaceae: Acanthoideae: Justicieae) from Northeastern Brazil

2020 ◽  
Vol 45 (2) ◽  
pp. 328-333
Author(s):  
Camila Alcantara ◽  
Gleison Soares ◽  
Francisco de Assis Ribeiro dos Santos ◽  
Marccus Alves
Keyword(s):  
New Species ◽  
Rio Grande ◽  
Morphological Characters ◽  
Northeastern Brazil ◽  
Distribution Map ◽  
Key To Species ◽  
A New Species

Abstract—Justicia rubrobracteata, a new species from northeastern Brazil, is described and illustrated. The new species is morphologically similar to J. aequilabris due to its shrubby habit, and terminal and axillary spicate inflorescences with red flowers. However, J. rubrobracteata is differentiated mainly by the shape and color of its bracts and bracteoles as well as an orangish macula in the corolla, and a torulose capsule. In addition, J. rubrobracteata is only known from northeastern Brazil, from the states of Paraíba and Rio Grande do Norte, while J. aequilabris is widely distributed in Bolivia, Brazil, and Paraguay. A table with the main morphological characters of both species is included, as well as photographs, a key to species of Justicia for the states of Paraíba and Rio Grande do Norte in northeastern Brazil, a distribution map of both species, and conservation data for the new species.

A remarkable pogonophoran from a desalted shallow near the mouth of the Yenisey River in the Kara Sea, with the description of a new species of the genus Galathealinum (Annelida: Pogonophora: Frenulata)

2020 ◽  
Vol 29 (1) ◽  
pp. 138-154
Author(s):  
R.V. Smirnov ◽  
O.V. Zaitseva ◽  
A.A. Vedenin
Keyword(s):  
New Species ◽  
Arctic Ocean ◽  
Anterior Part ◽  
Morphological Characters ◽  
Kara Sea ◽  
The Arctic ◽  
External Layer ◽  
The Arctic Ocean ◽  
A New Species ◽  
Unusual Finding

A new species of Pogonophora obtained from one station at a depth of 25 m from near the Dikson Island in the Kara Sea is described. Galathealinum karaense sp. nov. is one of the largest pogonophorans, the first known representative of the rare genus Galathealinum Kirkegaard, 1956 in the Eurasian part of the Arctic Ocean and a highly unusual finding for the desalted shallow of the Yenisey Gulf. Several characters occurring in the new species are rare or unique among the congeners: under-developed, hardly discernible frills on the tube segments, extremely thin felted fibres in the external layer of the tube, and very faintly separated papillae in the anterior part of the trunk. Morphological characters useful in distinguishing species within the genus Galathealinum are defined and summarised in a table. Diagnosis of the genus Galathealinum is emended and supplemented by new characters. Additionally, three taxonomic keys are provided to the species of Galathealinum and to the known species of the Arctic pogonophorans using either animals or their empty tubes only, with the brief zoogeographical information on each Arctic species.

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