Pleurothallis convallaria Schltr. 1923 SUBGENUS Effusae Luer 2000
Photo by © Daniel Jimenez
Photo by Eric Hunt, plant grown by Gerardus Staal.
Drawing by Carl Luer
to 
Common Name The Lily Of The Valley-Like Pleurothallis
Flower Size .2" [5 mm]
Found in Granada department of Nicaragua, Alajuela and Herida provinces of Costa Rica and Veraguas province of Panama in elfin forests at elevations of 1000 to 1500 meters as a medium sized, warm to cool growing, caespitose epiphyte with terete ramicauls enveloped basally by 2 to 3 inflated, scarious sheaths and carrying a single, apical, elliptic, coriaceous, dark green, tridenticulate apically leaf that is cuneate basally and blooms at most any time of the year on an erect, subtended by a narrow spathe arising from the apex of the ramicaul and rising between the condupicate sides of the subpetiolate base, peduncle 2.4 to 4" [6 to 10 cm] long, loose, secund, racemose, 6 to 12" [15 to 30 cm] long overall, laxly, nearly simultaneously several to amny flowered inflorescence with tubular, shorter than the epdicel floral bracts.
"Characterized by the stout ramicula clad in a loose sheath and shorter than the leaf. The subpetiolate base of the leaf clasps the spathe and peduncle. The inflorescence is a loose, secund raceme of relatively large, drooping flwers that area smooth and purple externally, but filled within by a mat of long-villous, white hairs. The petals are cuneate and more or less bilobed at the apex. The lip is transversely bilobed, tricarinate and log-unguiculate." Luer 2000
Synonyms Effusiella convallaria (Schltr.) Luer 2007; Specklinia convallaria (Schltr.) Luer 2004; Stelis convallaria (Schltr.) Pridgeon & M.W. Chase 2001
References W3 Tropicos, Kew Monocot list , IPNI ;
* Repert. Spec. Nov. Regni Veg. Beih. 19: 185-186 Schlechter 1923;
Icones Planetarum Tropicarum plate 1093 Dodson 1984 drawing fide;
Icones Pleurothallidinarum Vol III Systematics of Pleurothallis Luer 1986;
Orchids Travel By Air A Pictoral Safari Mulder, Mulder-Roelfsema and Schuiteman 1990 photo fide;
Lindleyana Vol 16 No 4:262 Pridgeon & M.W. Chase 2001 as Stelis convallaria;
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 Specklinia convallaria;
Icones Pleurothallidinarum Vol XXIX A Third Century of Stelis of Ecuador Systematics of Apoda-prorepentia Luer 2007as Effusiella convallaria;
Orchids of Costa Rica Vol 5 Morales 2009 photo fide;
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