Filling the gap in the geographical range of Pterichis aragogiana (Orchidaceae) and notes on the nominal section of Pterichis in Peru
DOI:
https://doi.org/10.3989/ajbm.671Keywords:
Andes, Cranichideae, taxonomy, terrestrial orchidsAbstract
The orchid genus Pterichis comprises almost 50 species distributed from Costa Rica and Jamaica to Bolivia with the greatest diversity observed in the northern Andes. Recent studies on Pterichis resulted in the description of numerous new species across South America. One of the most interesting findings was P. aragogiana, which is characterized by a spider-like appearance of the flowers. This orchid was described based on material collected in Ecuador and a year later its occurrence was confirmed in Bolivia. Here P. aragogiana is reported for the first time from Peru based on data obtained in USM herbarium. The morphological characteristic of the species is provided together with an illustration and information about its geo-graphical distribution. An updated key for identification of Peruvian representatives of the nominal section of Pterichis is presented.
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