Platystele adelphe Luer & Hirtz 1994 SUBGENUS Platystele

Photo by Alexander Hirtz

TYPE Drawing TYPE drawing by Carl Luer and Swiss Orchid Foundation at the Jany Renz Herbaria Website

Full Shade cool Summer

Common Name The Sister Platystele [refers to its close relationship with others within the genus]

Flower Size .24" [6 mm]

Found in Carchi province of Ecuador at elevations around 1800 meters as a mini-miniature sized, cool growing epiphyte with erect, slender ramicauls enveloped by 2 thin, tubular sheaths and carrying a single, apical, erect, coriaceous, narrowly obovate, subacute to obtuse, narrowly cuneate below into the petiolate base leaf that blooms in the summer on a slender, erect, loose, flexuous, distichous, to 1.2" [to 3 cm] long including the .4 to .6" [1 to 1.5 cm] long peduncle, successively several to many flowered inflorescence arising laterally from the ramicaul and has a thin floral bract.

There are 4 very similar species all from the western side of the Andes of Ecuador, P pubescens, P scopulifera, P ximenae and this one is easily distinguished from the others by its acuminate sepals and petals and the glabrous lip.

References W3 Tropicos, Kew Monocot list , IPNI ; * Icones Pleurothallidinarum Vol XI Systematics of Lepanthes Subgenus Brachycladium and Pleurothallis Subgenus Aenigma, Subgenus Elongata and Subgenus Kranzlinella Luer 1994 Drawing fide; Native Ecuadorian Orchids Vol 4 Dodson 2003 drawing fide/photo fide; Platystele finleyae, Pleurothallidinae, A New Species From Northwesten Ecuador Monteros, Restrepo and Baquero 2022 photo fide