Pleurothallis excavata Schltr. 1923 SUBGENUS Pleurothallis SECTION Macrophyllae-Fasciculatae Lindl 1859
Photo by Franco Pupulin ©
LECTOTYPE Drawing by Oakes Ames
Drawing by Endres
Common Name The Hollow Pleurothallis [refers to the deep cavity in the lip]
Flower Size .3" [3mm]
Found in Alajuela and Guanacaste provinces of Costa Rica and Chiriqui, Cocle and Panama provinces of Panama at elevations of 1300 to 1500 meters as a miniature sized, cool growing, caespitose epiphyte with slender, erect, suberect or horizontal ramicauls enveloped basally by 1 to 2 tubular sheaths and another on the lower half and carrying a single, apical, suberect, rigid, thickly coriaceous, ovate, subacute to obtuse, basally broadly cuneate and sessile leaf that blooms in the winter on a short, arising through a spathe at the base of the leaf, fasiculate, succession of single flowered inflorescence with a thin, tubular, shorter than the pedicel floral bract and carrying a non-resupinate flower
Characterized by the thickly coriaceous, sessile leaves carrying a wide open, non resupinate flower reating at its base. The flowers have sepals that are spotted and suffused with purple, a deeply cucullate synsepal, subcarinate petals that curve to either side of the ovoid, deeply concave, apiculate lip.
Synonyms Acronia excavata [Sclechter] Luer 2005; Pleurothallis concaviflora C.Schweinf. 1937; Pleurothallis imago Luer 1977; Zosterophyllanthos excavatus (Schltr.) Szlach. & Kulak 2006
References W3 Tropicos, Kew Monocot list , IPNI ;
* Repert. Sp. Nov. Regni. Veg. Beih. 19: 287. Costa Rica Schlechter 1923;
Bot. Mus. Leafl. 4: 114 C. Schweinf. 1937 as P concaviflora drawing fide;
The Orchids of Panama L.O. Williams & P Allen 1946 as P concaviflora;
Selbyana 3(3-4): 318. Luer 1977 as P imago;
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 XXVII Systematics of Dryadella and Acronia Section Macrophyllae-Fasciculatae Luer 2005 as Acronia excavata
Icones Pleurothallidinarum XXVII Systematics of Dryadella and Acronia Section Macrophyllae-Fasciculatae Luer 2005 as Acronia excavata drawing fide;
Orquideas de la Serrania del Baudo Misas Urreta 2006 as P concaviflora drawing/photo fide;
Orquideas de la Serrania del Baudo Misas Urreta 2006 drawing/photo fide;
AOS Bulletin Vol 76 No 9 2007 photo fide;
Orchids of Costa Rica Vol 5 Morales 2009 photo fide;
Vanishing Beauty, Native Costa Rican Orchids Vol 2 Lacaena to Pteroglossa Pupulin 2020 photo fide;
Vanishing Beauty, Native Costa Rican Orchids Vol 2 Lacaena to Pteroglossa Pupulin 2020 as P cf imago photo fide
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