New or Noteworthy Orchids for the Venezuelan Flora. VIII. New Species and Combinations from the Venezuelan Guayana

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Abstract
In preparing the treatment of the Orchidaceae for the Flora of the Venezuelan Guayana, several new taxa have been detected. These include specimens from recently completed expeditions and earlier herbarium material. Reconsideration of generic boundaries within several subtribes has made necessary various nomenclatural changes. The following new taxa and combinations are proposed: Cleistes huberi, sp. nov.; C. rosea f. pallida, f. nov.; C. unifoliata, comb. nov. [.ident. Pogonia unifoliata]; Octomeria romerorum, sp. nov.; Pleurothallis deborana, sp. nov.; P. pemonium, sp. nov.; Stelis garayi, comb. nov. [.ident. Apatostelis garayi]; Sobralia oliva-estevae, sp. nov. In addition, comments are supplied, where pertinent, on the affinities of the various taxa proposed.

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