Pleurothallis sigmoidea Ames & C.Schweinf. 1930 SUBGENUS Kraenzlinella (Kuntze) Luer 1986
Photo by Franco Bogarin
TYPE Drawing by © Carl Luer
Common Name or Meaning The "S" Shaped Pleurothallis [refers to the lip shape]
Flower Size .4" [1 cm]
Found in the province of Guanacaste in Costa Rica at elevations of 500 to 1000 meters as a mini-miniature sized, warm growing, shortly repent to caespitose epiphyte with stout, erect to suberect ramcauls enveloped by 2 loose tubular sheaths and carrying a single, apical, erect, thickly coriaceous, narrowly elliptical, fusiform, acute, more or less conduplicate below into the sessile base leaf that blooms in the fall and winter on an erect, arising through a spathe at the base of the leaf, loose, slightly flexuous, peduncel 1.6 to 2" [to to 5 cm] long, rachis to 2 to 2.4" " [5 to 6 cm] long, successively single, several flowered inflorescence with infundibulrar, as long as the pedicel floral bracts.
"Pleurothallis sigmoidea is identified the small, thick, conduplicate, sessile leaves and a considerably longer raceme of successive flowers. The sepals are carinate and minutely ciliate; the petals are bilobulate at the base; the blade of the lip is oblong, obtuse, cellular-glandular, erose bilobulate at the base and channeled medially; and the claw is decurved and bitobulate at the base" Luer 1994
Synonyms Kraenzlinella sigmoidea (Ames & C.Schweinf.) Luer 2004
References W3 Tropicos, Kew Monocot list , IPNI ;
* Schedul. Orch. 10: 36-37. Ames & C.Schweinf 1930;
Icones Pleurothallidinarum Vol III Systematics of Pleurothallis Luer 1986;
Manual de Plantas de Costa Rica Vol 3 Hammel, Grayum, Herrera and Zamora 2003;
Icones Pleurothallidinarum Vol XXVI Pleurothallis subgenus Acianthera and Three Allied subgenera, A Second Century of new Species of Stelis of Ecuador, Epibator, Ophidion and Zootrophion Luer 2004 as Kraenzlinella sigmoidea;
Phytotaxa 275: 272 Doucette 2016 as Acianthera sigmoidea;
Pleurothallids Neotropical Jewels Vol 1 Karremans & Viera 2020 as Acianthera sigmoidea photo fide
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