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Revista mexicana de biodiversidad
On-line version ISSN 2007-8706Print version ISSN 1870-3453
Abstract
KOLANOWSKA, Marta. The orchid flora of the Colombian Department of Valle del Cauca. Rev. Mex. Biodiv. [online]. 2014, vol.85, n.2, pp.445-462. ISSN 2007-8706. https://doi.org/10.7550/rmb.32511.
The floristic, geographical and ecological analysis of the orchid flora of the department of Valle del Cauca are presented. The study area is located in the southwestern Colombia and it covers about 22 140 km2 of land across 4 physiographic units. All analysis are based on the fieldwork and on the revision of the herbarium material. A list of 572 orchid species occurring in the department of Valle del Cauca is presented. Two species, Arundina graminifolia and Vanilla planifolia, are non-native elements of the studied orchid flora. The greatest species diversity is observed in the montane regions of the study area, especially in wet montane forest. The department of Valle del Cauca is characterized by the high level of endemism and domination of the transitional elements within the studied flora. The main problems encountered during the research are discussed in the context of tropical floristic studies.
Keywords : biodiversity; ecology; distribution; Orchidaceae.