Pleurothallis andreae Mark Wilson, B.T.Larsen & J.Portilla 2017 SECTION Ancipita

Photo by Ecuagenera and their Orchid Website


Comparison photo of Lips

Comparison photo of Columns

Photos by Mark Wilson

Part Shade Cold Winter Spring

Common Name Andrea's Pleurothallis [Andrea Nissen Colombian Nurserywoman current]

Flower Size 1" [2.5 cm]

Found in Colombia and Ecuador on the western slope of the Andes at elevations of 1900 to 3000 meters as a small sized, cold growing epiphyte with erect, slender, provided with a single, papery, basal sheath, sharply ancipitous ramicaul carrying a single, apical, erect to suberect, ovate, acute, cuneate, sessile, entire, coriaceous leaf that blooms in the winter and spring on a fascile of solitary, successive flowers arosong through a reclining spathaceous bract at the base of the leaf.

"Pleurothallis andreae is similar to both Pleurothallis arietina and Pleurothallis nelsonii from which it differs in the color of the flowers (pale lemon yellow in P. andreae vs. “Pinard yellow” in P. arietina and white suffused with rose in P. nelsonii); the degree of openness of the flowers or sepal angle (wide open or ~110–130° in P. andreae vs. partially open or ~50–70° in P. arietina and P. nelsonii); the surface texture of the flowers (smooth in P. andreae vs. verrucose in P. arietina and P. nelsonii).

Part of the P crocodiliceps group which consists of P arietina, P microchila, P nelsonii, P manningiana, P weilii and P kelsoae


References W3 Tropicos, Kew Monocot list , IPNI ;

* LANKESTERIANA 17(2): 165—191. Wilson, Dupree, Driessen, Bruno T. Larsen, Armin Löckher, Niessen, José Portilla, Guerrero, Andres, Suarez, Tobar-Suárez 2017 photo/drawing fide;