scholarly journals Taxonomic revision of the genus Cranichis (Orchidaceae, Cranichideae) in Colombia

PeerJ ◽  
2019 ◽  
Vol 7 ◽  
pp. e7385 ◽  
Author(s):  
Dariusz L. Szlachetko ◽  
Marta Kolanowska

The geographical range of the orchid genus Cranichis extends from USA, Central America, and the Caribbean to Bolivia and Argentina—with the greatest diversity observed in the Andean region. This taxon embraces herbs with the scape and basal leaves developing from a single, terminal bud and having the scape enclosed in several sheaths. The small, non-resupinate, flowers are arranged in a racemose inflorescence. The petals and lip are free from the column part and their gynostemium is short and massive. In this paper, the synopsis of Cranichis in Colombia is presented. Each species occurring in the country is characterized and illustrated. The information about habitat and distribution of national genus representatives are provided. Several groups of species that are very similar in their morphology are delineated to facilitate process of species identification. A total of 10 species are described here as new. Lectotypes for the six species Cranichis ciliata, C. fendleri, C. mandonii, C. tenuis, C. viereckii, and C. wageneri have been selected. Additionally, two new nomenclatorial combinations within Ocampoa are proposed.

Zootaxa ◽  
2013 ◽  
Vol 3608 (5) ◽  
pp. 285-327 ◽  
Author(s):  
ALEJANDRO VALDEZ-MONDRAGÓN

A taxonomic revision of the genus Ixchela Huber, 2000 is presented. The previously described five species are redescribed with new taxonomic information and new distribution records. The males of Ixchela placida (Gertsch, 1971) and Ixchela simoni  (O. Pickard-Cambridge, 1898) are described for the first time. Ten new species are described, nine from Mexico and one from Honduras: Ixchela mixe new species, Ixchela huberi new species, Ixchela juarezi new species, Ixchela grix new species, Ixchela taxco new species, Ixchela franckei new species, Ixchela tzotzil new species, Ixchela santibanezi new species, Ixchela huasteca new species, and Ixchela viquezi new species. Identification keys for males and females are presented.


Author(s):  
Walter D. Mignolo

This book is an extended argument about the “coloniality” of power. In a shrinking world where sharp dichotomies, such as East/West and developing/developed, blur and shift, this book points to the inadequacy of current practices in the social sciences and area studies. It explores the crucial notion of “colonial difference” in the study of the modern colonial world and traces the emergence of an epistemic shift, which the book calls “border thinking.” Further, the book expands the horizons of those debates already under way in postcolonial studies of Asia and Africa by dwelling on the genealogy of thoughts of South/Central America, the Caribbean, and Latino/as in the United States. The book's concept of “border gnosis,” or sensing and knowing by dwelling in imperial/colonial borderlands, counters the tendency of occidentalist perspectives to manage, and thus limit, understanding. A new preface discusses this book as a dialogue with Hegel's Philosophy of History.


2020 ◽  
Vol 63 (11) ◽  
pp. 84-89
Author(s):  
Gerardo Torres Zelaya

Author(s):  
Dorian M. Noel ◽  
Prosper F. Bangwayo-Skeete ◽  
Michael Brei ◽  
Justin Robinson

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