scholarly journals Ceratozamia dominguezii (Zamiaceae): A New Cycad Species from Southeastern Mexico

Taxonomy ◽  
2021 ◽  
Vol 1 (4) ◽  
pp. 345-359
Author(s):  
Miguel Angel Pérez-Farrera ◽  
José Said Gutiérrez-Ortega ◽  
Andrew P. Vovides ◽  
Michael Calonje ◽  
Pedro Díaz-Jiménez
Keyword(s):  
New Species ◽  
Species Complex ◽  
Tropical Rainforests ◽  
Closely Related Species ◽  
Caramel Color ◽  
Violet Color ◽  
Dark Violet ◽  
Neotropical Plants ◽  
A New Species

Ceratozamia dominguezii (Zamiaceae), a new species endemic to the lowland karstic tropical rainforests of southeastern Veracruz, Mexico, is described. The new species is part of the C. robusta species complex, a group of closely related species that share unique characteristics in the genus, such as robust trunks, large strobili, and long leaves. Compared with the other species in the complex (i.e., C. robusta, C. leptoceras, C. aurantiaca and C. subroseophylla), C. dominguezii has the longest rachides, and is characterized by having papyraceous leaflets, a unique caramel color in emerging leaves, and a dark-violet color in the central portion of distal faces of male and female sporophylls. Ceratozamia dominguezii occurs within the Uxpanapa floristic refuge, which is hypothesized to have sheltered a numerous group of tropical elements during the Neogene glaciations. The recognition of C. dominguezii contributes to clarifying the present diversity of cycads in the genus Ceratozamia, and adds discussion on the role of floristic refugia in the divergence of Neotropical plants in Mexico.

scholarly journals A new species of Meligethes Stephens from China and additional data on members of the M. chinensis species-complex (Coleoptera: Nitidulidae, Meligethinae)

2017 ◽  
Vol 49 (1) ◽  
pp. 79 ◽  
Author(s):  
Meike Liu ◽  
Min Huang ◽  
Andrew Richard Cline ◽  
Simone Sabatelli ◽  
Paolo Audisio
Keyword(s):  
New Species ◽  
Related Species ◽  
Species Complex ◽  
Additional Data ◽  
Species Group ◽  
Central China ◽  
Female Specimen ◽  
Larval Ecology ◽  
Closely Related Species ◽  
A New Species

<em>Meligethes</em> (<em>Odontogethes</em>) <em>inexpectatus</em> sp. n. is described from China, Sichuan Province. The new species is based on a female specimen previously incorrectly referred to as <em>Meligethes</em> <em>scrobescens</em> Chen, Lin, Huang &amp; Yang, 2015, which was recently described from a series of male specimens collected in the same area. Both species belong to the taxonomically difficult species-group related to M. chinensis Kirejtshuk, 1979, including a dozen closely related species distributed throughout Nepal and SW and Central China. The true female of <em>Meligethes scrobescens</em> is also described, based on recently collected material from China (Hubei and Chongqing), including a series of male and female specimens. Diagnostic characters distinguishing the new species from all other known members of the<em> M. chinensis</em> species-group and species-complex are discussed, and their overall range distribution are depicted. Additional data on geographic distribution and larval ecology of some of the closely related species are also reported.

Mitochondrial DNA and morphometrical identification of a new species of Hylomyscus (Rodentia: Muridae) from West Africa

Zootaxa ◽  
2010 ◽  
Vol 2579 (1) ◽  
pp. 30 ◽  
Author(s):  
VIOLAINE NICOLAS ◽  
AYODEJII OLAYEMI ◽  
WIM WENDELEN ◽  
MARC COLYN
Keyword(s):  
New Species ◽  
Species Complex ◽  
Sequence Divergence ◽  
Cyt B ◽  
16S Rdna Gene ◽  
Dental Measurements ◽  
Cyt B Gene ◽  
A New Species ◽  
16S Rdna Gene Sequencing

In this paper we describe a new species of Hylomyscus based on molecular (Cyt b and 16S rDNA gene sequencing) and morphometrical analyses. This new species occurs in Benin and Nigeria, and probably also in Togo. It differs by 8.29 to 10.40 % of sequence divergence (K2P distance for the Cyt b gene) from all other species of the H. alleni species complex, and can be distinguished from these species through morphometrical multivariate analyses. It differs significantly from its closest relative, H. simus, by four external and nine cranio-dental measurements. The role of rivers and Pleistocene forest refugia in the diversification of the H. alleni species complex is discussed.

A New Species of Eugenia subg. Pseudeugenia (Myrtaceae, Myrteae) from Brazilian Atlantic Forest

2020 ◽  
Vol 45 (3) ◽  
pp. 537-543
Author(s):  
Karinne Sampaio Valdemarin ◽  
Jair Eustáquio Quintino Faria ◽  
Fiorella Fernanda Mazine ◽  
Vinicius Castro Souza
Keyword(s):  
New Species ◽  
Atlantic Forest ◽  
Conservation Status ◽  
Forest Vegetation ◽  
Vegetation Types ◽  
Flower Buds ◽  
Diagnostic Features ◽  
Closely Related Species ◽  
Lowland Forests ◽  
A New Species

Abstract—A new species of Eugenia from the Atlantic forest of Brazil is described and illustrated. Eugenia flavicarpa is restricted to the Floresta de Tabuleiro (lowland forests) of Espírito Santo state and is nested in Eugenia subg. Pseudeugenia. Considering all other species of the subgenus that occur in forest vegetation types of the Atlantic forest phytogeographic domain, Eugenia flavicarpa can be distinguished mainly by the combination of smooth leaves with indumentum on both surfaces, with two marginal veins, usually ramiflorous inflorescences, pedicels 4.5‐9.7 mm long, flower buds 3.5‐4 mm in diameter, and by the calyx lobes that are 2‐3 mm long with rounded to obtuse apices. Morphological analyses were performed to explore the significance of quantitative diagnostic features between the new species and the closely related species, Eugenia farneyi. Notes on the habitat, distribution, phenology, and conservation status of Eugenia flavicarpa are provided, as well as a key for all species of Eugenia subg. Pseudeugenia from forest vegetation of the Atlantic forest phytogeographic domain.

A new species of Cribraria (Myxomycetes) from Australia

2018 ◽  
Vol 52 (2) ◽  
pp. 379-385 ◽  
Author(s):  
S. L. Stephenson ◽  
Yu. K. Novozhilov ◽  
P. Wellman
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
New Species ◽  
Lemon Yellow ◽  
Moist Chamber ◽  
Light Yellow ◽  
Dark Violet ◽  
The Stability ◽  
A New Species ◽  
Scanning Electron

A new species of Cribraria, described herein as C. bicolor, appeared in moist chamber cultures on samples of the bark of Eucalyptus sp. collected at two localities in Australia. The morphology of representative specimens was examined by light and scanning electron microscopy, and micrographs of relevant morphological details of sporocarps and spores are provided. The species has a number of distinct and unique morphological features, including a glossy bright-violet globose sporotheca and a two-colored long stalk which is bright-red over the lower one-third and light yellow or lemon-yellow over the upper two-thirds. The combination of these characteristics as well as a shallow calyculus which is dark-violet when viewed under a dissecting microscope and bright red in transmitted light when mounted in lactophenol makes C. bicolor a well-defined morphospecies when compared to all other species of Cribraria. The stability of the taxonomic characters of the species was confirmed by an examination of a number of specimens.

scholarly journals Species delimitation in the Stenocereus griseus (Cactaceae) species complex reveals a new species, S. huastecorum

PLoS ONE ◽  
2018 ◽  
Vol 13 (1) ◽  
pp. e0190385 ◽  
Author(s):  
Hernán Alvarado-Sizzo ◽  
Alejandro Casas ◽  
Fabiola Parra ◽  
Hilda Julieta Arreola-Nava ◽  
Teresa Terrazas ◽  
...  
Keyword(s):  
New Species ◽  
Species Delimitation ◽  
Species Complex ◽  
A New Species

Salicornia cuscoensis (Amaranthaceae/Chenopodiaceae), a new species from Peru (South America)

Phytotaxa ◽  
2017 ◽  
Vol 319 (3) ◽  
pp. 254 ◽  
Author(s):  
M. ÁNGELES ALONSO ◽  
MANUEL B. CRESPO ◽  
HELMUT FREITAG
Keyword(s):  
New Species ◽  
South America ◽  
Morphological Characters ◽  
Tierra Del Fuego ◽  
South American ◽  
Habitat Distribution ◽  
Closely Related Species ◽  
Molecular Analyses ◽  
Southern Patagonia ◽  
A New Species

The name Salicornia cuscoensis given to a plant from high Andean saltmarshes near Cusco [Cuzco] and Ayacucho, Peru (South America) is validated by a diagnosis and description. The main morphological characters that separate S. cuscoensis from other closely related species are creeping habit, delicate branches, inflorescence of short and thin spikes, and seed indumentum. The new species clearly differs from other perennial Salicornia taxa growing in high Andean saltmarshes such as S. pulvinata and S. andina. The former forms small compact cushions producing very short, few-flowered inflorescences. The latter shows woody stems and forms larger rounded carpets. Morphologically, S. cuscoensis is also similar to S. magellanica, a species growing along the seashore in southern Patagonia and Tierra del Fuego, but the latter has shorter and wider inflorescences and larger seeds with a different type and arrangement of indumentum. Molecular analyses also supported the separation of S. cuscoensis. Data on habitat, distribution and phylogenetic relationships are presented for the new species and its relatives, and an identification key is given for the South American taxa of the genus Salicornia.

scholarly journals Microglanis carlae, a new species of bumblebee catfish (Siluriformes: Pseudopimelodidae) from the río Paraguay basin in Paraguay

2008 ◽  
Vol 6 (3) ◽  
pp. 425-432 ◽  
Author(s):  
Héctor S. Vera Alcaraz ◽  
Weferson J. da Graça ◽  
Oscar A. Shibatta
Keyword(s):  
New Species ◽  
Species Complex ◽  
Anterior Margin ◽  
Color Pattern ◽  
Caudal Peduncle ◽  
Dorsal Fin ◽  
Fin Ray ◽  
Pectoral Spine ◽  
Adipose Fin ◽  
A New Species

Microglanis carlae, new species, is described from the río Paraguay basin and distinguished from its congeners by the following combination of characters: paired and anal fins mottled or with thin faint bands, trunk with dark-brown saddles, anterior margin of pectoral spine with serrations retrorse proximally and antrorse distally, tip of pectoral spine as a distinct bony point, continuous portion of lateral line reaching vertical through last dorsal-fin ray, caudal peduncle with irregularly shaped, faint to dark blotch, maxillary barbel surpassing vertical through dorsal-spine origin, and dark bar on posterior flank continuous from base of adipose fin to that of anal fin. The new species is included in the Microglanis parahybae species complex on the basis of color pattern.

Trogia benghalensis (Marasmiaceae, Basidiomycota), a new species from India

Phytotaxa ◽  
2017 ◽  
Vol 331 (2) ◽  
pp. 273 ◽  
Author(s):  
ARUN KUMAR DUTTA ◽  
SUDESHNA NANDI ◽  
ENTAJ TARAFDER ◽  
RIMPA SIKDER ◽  
ANIRBAN ROY ◽  
...  
Keyword(s):  
New Species ◽  
Related Species ◽  
Internal Transcribed Spacer ◽  
West Bengal ◽  
Internal Transcribed Spacer Region ◽  
Comprehensive Description ◽  
Closely Related Species ◽  
Molecular Sequence ◽  
Region Data ◽  
A New Species

A new species of Trogia (Marasmiaceae, Basidiomycota) is described from West Bengal, India. Analysis of the molecular sequence (nuclear ribosomal internal transcribed spacer region) data suggests that T. benghalesis is phylogenetically distinct from its closely related species. Comprehensive description based on macro- and microscopic characters, photographs and comparisons with morphologically similar and phylogenetically related species are provided.

Cambarus (Jugicambarus) adustus, a new species of crayfish from northeastern Kentucky delimited from the Cambarus (J.) aff. dubius species complex 

Zootaxa ◽  
2016 ◽  
Vol 4162 (1) ◽  
pp. 173 ◽  
Author(s):  
ROGER F. THOMA ◽  
JAMES W. JR. FETZNER ◽  
G. WHITNEY STOCKER ◽  
ZACHARY J. LOUGHMAN
Keyword(s):  
New Species ◽  
Species Complex ◽  
A New Species
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