scholarly journals Occurrence of apomictic conspecifics and ecological preferences rather than colonization history govern the geographic distribution of sexual Potentilla puberula

2020 ◽  
Vol 10 (14) ◽  
pp. 7306-7319
Author(s):  
Flavia Domizia Nardi ◽  
Karl Hülber ◽  
Dietmar Moser ◽  
Henar Alonso‐Marcos ◽  
Andreas Tribsch ◽  
...  
Keyword(s):  
Geographic Distribution ◽  
Colonization History ◽  
Ecological Preferences

Andropogon saxicola (Poaceae: Andropogoneae), a new species from Brazil

Phytotaxa ◽  
2019 ◽  
Vol 397 (1) ◽  
pp. 83
Author(s):  
ANA ZANNIN ◽  
PEDRO LAGE VIANA ◽  
CASSIANO A. DORNELES WELKER ◽  
TARCISO S. FILGUEIRAS
Keyword(s):  
New Species ◽  
Geographic Distribution ◽  
Related Species ◽  
Minas Gerais ◽  
Campo Rupestre ◽  
New Taxon ◽  
Ecological Preferences ◽  
Brazilian State ◽  
A New Species ◽  
Iucn Criteria

Andropogon saxicola, collected in rocky grasslands (campo rupestre) of the Brazilian state of Minas Gerais, is described, illustrated, and compared with putatively related species, such as A. campestris, A. carinatus, A. durifolius, and A. ingratus. According to the IUCN criteria, the new species is considered Endangered (EN). Comments on geographic distribution and ecological preferences of the new taxon are also provided.

A new species of Contomastix (Squamata, Teiidae) supported by total evidence, with remarks on diagnostic characters defining the genus

2019 ◽  
pp. 23-36
Author(s):  
Mario. R. Cabrera
Keyword(s):  
New Species ◽  
Geographic Distribution ◽  
Phylogenetic Reconstruction ◽  
Total Evidence ◽  
Molecular Evidence ◽  
Proximal Margin ◽  
Diagnostic Characters ◽  
Morphological Differences ◽  
A New Species ◽  
Molecular Characters

Formerly Cnemidophorus was thought to be the most speciose genus of Teiidae. This genus comprised four morphological groups that were later defined as four different genera, Ameivula, Aurivela, Cnemidophorus and Contomastix. The last appears as paraphyletic in a recent phylogenetic reconstruction based on morphology, but monophyletic in a reconstruction using molecular characters. Six species are allocated to Contomastix. One of them, C. lacertoides, having an extensive and disjunct geographic distribution in Argentina, Uruguay and Brazil. Preliminary analyses revealed morphological differences among its populations, suggesting that it is actually a complex of species. Here, we describe a new species corresponding to the Argentinian populations hitherto regarded as C. lacertoides, by integrating morphological and molecular evidence. Furthermore, we demonstrate that the presence of notched proximal margin of the tongue is a character that defines the genus Contomastix.

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