Bifrenaria tetragona (as Maxillaria tetragona) - Curtis' 58 (N.S. 5) pl. 3146 (1832), 1832
Illustration of bifrenaria tetragona (as syn. Maxillaria tetragona). Date: 1832.
Author: Swan sc. , drawing probably by William Jackson HookerSource: https://commons.wikimedia.org/Loading...