Sigmatostalix pseudounguiculata Pupulin & Dressler 2000
Photos by © Walter Schug
Another Angle Photos by P. Catling Copyright © , and the Dr Leslie Garay Archives
Common Name The False Clawed Sigmatostalix
Flower Size
Found in Costa Rica Pacific watershed of Cordillera de Talamanca in Costa Rica, on the Pacific slope of the Talamanca Range in disturbed vegetation in premontane wet forest at elevations around 1000 meters as a mini-miniature sized, warm to cool growing, caespitose epiphyte with ovate, laterally compressed,pseudobulbs enveloped basally scarious margined basaly, green blotched with purple foliaceous, sheaths and carrying asingle, apical, linear-oblong, submembraneous, basally conduplicate, acute to subobtuse apically, narrowing below intothe distinct petiolate base leaf that blooms in the winter on an axillary, from the basal leaves, to 2" [5 cm] long, provided with 2, narrowly ovate, tubular sheaths, to 3 simultaneously, remotely 1 to rarely 3 flowered inflorescence.
"Sigmatostalix pseudounguiculata is closely related to S. unguiculata L.O. Williams, but the lateral lobes of lip in P. pseudounguiculata are truncate, not acute, white instead of yellow, and in most of the specimens they are turned back toward the claw." Pupulin 2003
Synonyms Oncidium pseudounguiculatum [Pupulin & Dressler] Chase & NH Wms. 2008
References W3 Tropicos, Kew Monocot list , IPNI ; Band 1C lieferung 44-45 pg 2763 - 2898 Brieger 2001; Manual de Plantas de Costa Rica Vol 3 Hammel, Grayum, Herrera and Zamora 2003; Harvard Papers in Botany, Vol. 8, No. 1, pp. 35–59 Pupulin 2003 drawing fide; AOS Bulletin Vol 77 No 12 2008 as Oncidium pseudounguiculatum
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