Platystele perpusilla (Rchb.f.) Garay 1974Drawing by Fritz Hamer and The Swiss Orchid Foundation at the Jany Renz Herbaria Website

A similar flower? Photo by Ruben Senes and his Flickr Orchid Photo Website

Another similar flower? Another species? Photo by Denis Elizado and his Flickr Orchid Photo Website

Common Name The Very Small Platystele [refers to the plant size]

Flower Size .2" [5mm]

Found in Costa Rica and Panama at elevations of 1300 to 1450 meters as a mini-miniature sized, warm growing epiphyte with erect, slender ramicauls enveloped by 2 to 3 thin, loose, imbricating sheaths and carrying an erect, coriaceous, narrowly obovate, subacute, narrowly cuneate below into the petiolate base leaf that blooms on an erect, distichous, filiform, to 1.8" [4.5 cm] long overall, rachis .8 to 1" [2 to 2.5 cm] long, loose, distichous, simutaneously opening, several flowered inflorescence.

I have all of Luer's works and all the drawings of Paltystele and I cannot find a match for the orchid in the photos

Synonyms Humboltia perpusilla (Rchb.f.) Kuntze 1891; *Pleurothallis perpusilla Rchb.f. 1854

References W3 Tropicos, Kew Monocot list , IPNI ; The Orchids of Panama L.O. Williams & P Allen 1946 as Pleurothallis perpusilla; Icones Pleurothallidinarum Vol VII Luer 1990 drawing fide to the drawing only; Manual de Plantas de Costa Rica Vol 3 Hammel, Grayum, Herrera and Zamora 2003;