Pleurothallis dentipetala Rolfe ex Ames 1923 SUBGENUS Pleurothallis SECTION Pleurothallis SUBSECTION Acroniae SERIES Acroniae Luer 1988

Inflorescence

Photos by Einstein and The Orchid Source Website

Another Flower

Flower Closeup

Photos by Patricia Harding

Drawing

Drawing by Carl Luer and The Epidendra Website

Full Shade Warm to Cool Fall to Winter

Common Name The Tooth-Petaled Pleurothallis

Flower Size 1/5" [5mm]

found in Alajuela and Cartago provinces of central Costa Rica at elevations of 900 to 1500 meters as a medium sized, warm to cool growing, caespitose epiphyte with slender, erect, ramicauls enveloped basally by 2 tubular sheaths carrying a single, apical, erect, coriaceous, ovate, acute leaf that has a broadly cuneate, sessile base that blooms in the fall and winter on an erect then arching, arising from a reclining spathe, distichous, sublax to congested, simultaneously many flowered, 4" to 8" [10 to 20 cm cm] long inflorescence with a thin, infundibular, as long to longer than the pedicel floral bract.

"A large species with rather dense racemes of small purplish flowers tat are shorter than the sessile leaf. The dorsal sepal and similar synsepal are suborbicular and deeply concave. The petals are proportionally large with a margin that varies from minutely erose to coarsely fimbriate. The triangular lip is acute with erect, basal angles." Luer 1998

Synonyms Acronia dentipetala (Rolfe ex Ames) Luer 2005; Pleurothallis cooperi Schltr. 1923; Pleurothallis stelidiformis Schltr. 1923; Pleurothallis stevensii Luer 1979

References W3 Tropicos, Kew Monocot list , IPNI ;

* Schedul. Orch. 3: 7-8. Rolfe ex Ames 1923;

Repert. Sp. Nov. Regni. Veg. Beih. 19: 195. Costa Rica Schlechter 1923 as P stelidiformis;

Repert. Sp. Nov. Regni. Veg. Beih. 19: 286. Costa Rica Schlechter 1923 as P cooperi;

Orchids of Guatemala and Belize Ames & Correll 1952 drawing fide;

Selbyana 5(2): 181. Luer 1979 as P stevensii;

Icones Pleurothallidinarum Vol III Systematics of Pleurothallis Luer 1986;

Icones Pleurothallidinarum Vol III Systematics of Pleurothallis Luer 1986 as Pleurothallis stevensii;

Orchids Travel By Air A Pictoral Safari Mulder, Mulder-Roelfsema and Schuiteman 1990 photo fide;

Icones Pleurothallidinarum Vol XVII Systematics of Pleurothallis Section Abortivae, Truncatae, Subsection Acroniae, Subgenera Dracontia and Uncifera Luer 1998

Icones Pleurothallidinarum Vol XVII Systematics of Pleurothallis Section Abortivae, Truncatae, Subsection Acroniae, Subgenera Dracontia and Uncifera Luer 1998 drawing fide;

Manual de Plantas de Costa Rica Vol 3 Hammel, Grayum, Herrera and Zamora 2003 drawing fide;

Icones Pleurothallidinarum Vol XXVII Dryadella Acronia section Macrophyllae-Fasciculatae Luer 2005 as Acronia dentipetala;

AOS Bulletin Vol 75 No 2 2006 photo fide;

Vanishing Beauty, Native Costa Rican Orchids Vol 2 Lacaena to Pteroglossa Pupulin 2020 photo fide

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