Pleurothallis amparoana Schltr. 1923 SUBGENUS Effusae Luer 2000

Photo by Daniel Jimenez.

Inflorescence

Photo by Eric Hunt

Drawing

Drawing by Carl Luer

TYPE Sheet and Drawing by Ames

and

Common Name Dona Amparo's Pleurothallis [Costa Rican Orchid Enthusiast 1900's]

Flower Size .4" [1 cm]

Found in Panama and Heredia, Alajuela, San Jose and Puntarenas provinces of Costa Rica in lower montane rain forests at elevations of 1200 to 1800 meters as a miniature sized, cool growing, caespitose epiphyte with thin ramicauls enveloped basally by several tubular sheaths and carrying a single, apical, oblong-oblanceolate, conduplicate at the base leaves and blooms in the winter and spring on an apical, arising through a narrow spathe from an annulus at the leaf base, 1.2" to 4" [3 to 10 cm] long, racemose, laxly several [6 to 8] flowered inflorescence with thin, infundibular longer than the ovary floral bracts,

An easy diagnostic characteristic of this species is the narrow leaves longer than the ramicaul and surpassed by a loose raceme of relatively large, white flowers and the shallowly, saccate, long, white pilose, deeply inflated synsepal, has a resemblance to a toilet seat, broadly elliptical petals and a lip with broadly rounded lateral lobes above the unguiculate base.

Synonyms Effusiella amparoana Luer 2007; Specklinia amparoana (Schltr.) Luer 2004; Stelis amparoana (Schltr.) Pridgeon & M.W.Chase 2001; Stelis pilosa Pridgeon & M.W.Chase 2002

References W3 Tropicos, Kew Monocot list , IPNI ;

* Repert. Sp. Nov. Regni. Veg. Beih. 19: 23. Costa Rica Schlechter 1923;

Repert. Sp. Nov. Regni. Veg. Beih. 19: 104. Costa Rica Schlechter 1923;

Repert. Sp. Nov. Regni. Veg. Beih. 19: 181. Costa Rica Schlechter 1923;

AOS Bulletin Vol 33 No 3 1964 photo fide;

Miniature Orchids Northen 1980 photo fide;

Icones Pleurothallidinarum Systematics of Pleurothallis Vol 3 Luer 1986;

Icones Planetarum Tropicarum plate 1480 Atwood 1989 drawing fide;

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

Orchid Digest Vol 58 #4 1994 photo fide;

AOS Bulletin Vol 64 No 12 1995 photo fide;

Icones Pleurothallidinarum Vol XX Systematics of Jostia, Andinia, Barbosella, Barbrodia & Pleurothallis subgen Antilla, Effusia and Restrepioidia Luer 2000

Icones Pleurothallidinarum Vol XX Systematics of Jostia, Andinia, Barbosella, Barbrodia & Pleurothallis subgen Antilla, Effusia and Restrepioidia Luer 2000 drawing fide;

Lindleyana Vol 16 No 4:261 Pridgeon & M W Chase 2001 as Stelis amparoana;

Lindleyana 17: 100 Pridgeon & M W Chase 2002 as Stelis pilosa;

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

Australian Orchid Review Vol 69 No 5 2004 photo;

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 amparoana;

AOS Bulletin Vol 74 No 8 2005 photo fide;

AOS Bulletin Vol 75 No 1 2006 photo fide;

Icones Pleurothallidinarum Vol XXIX A Third Century of Stelis of Ecuador Systematics of Apoda-Prorepentia Luer 2007 as Effusiella amparoana;

Orchids of Costa Rica Vol 5 Morales 2009 photo fide;

Lankesteriana 19(1). 31 - 55 2019 as Stelis pilosa photo fide

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