Pleurothallis agathophylla Rchb.f. 1881 SUBGENUS Acianthera [Scheidw.] Luer 1986

Plant and Flowers

Photos by Dalton Holland Baptista

Drawing

Drawing by Carl Luer

Deep shade WarmColdFall

Common Name The Good Leaf Pleurothallis [refers to ? some quality of the leaf]

Flower Size .2" [5 mm]

Found in Huanuco and Junin departments of Peru, La Paz and Santa Cruz departments of Bolivia and southern Brazil at elevations of 1200 to 2600 meters as a mini-miniature to miniature sized, warm to cold growing, repent epiphyte with a long-repent rhizome giving rise to an ascending, suberect, stout, slightly compressed and sulcate above ramicauls enveloped by 2 to 3 tubular sheaths at the base and carrying a single, apical, spreading, coriaceous, more or less convex, suborbicular to broadly elliptical, broadly obtuse to rounded and notched apically, broadly rounded and cordate below into the sessile base leaf that blooms in the fall on a prostrate, arising on top of the leaf through a spathe, subcongested, distichous, .6 to .8" [1.5 to 2 cm] long, simultaneously 2 to 4 flowered inflorescence.

Characterized by a long-creeping rhizome producing a ramicaul about every .8 to 1.2" [2 to 3 cm]. The leaves are horizontal, broadly ovate but more often nearly circular ad often shorter than the ramiicaul. A short, few flowered raceme of small, yellow, fleshy flowers is borne on top of the leaf. The petals are obovate, acute and serrate and the lip is bicallous and verrucose.

Synonyms Acianthera agathophylla (Rchb.f.) Pridgeon & M.W.Chase 2001; Acianthera gradeae Chiron & Benelli 2012; Humboltia agathophylla (Rchb.f.) Kuntze 1891; Pleurothallis cyclophylla Luer 1976; Pleurothallis nakatae T.Hashim. 1986

References W3 Tropicos, Kew Monocot list , IPNI ;

* Xenia Orchidacea 3: 25 Rchb.f 1881;

Revis. Gen. Pl. 2: 667 Kuntze 1891;

Selbyana 3: 92 Luer 1976 as P cyclophylla drawing fide;

Icones Plantarum Tropicarum Bolivia Plate 575 Dodson 1984? drawing good;

Icones Pleurothallidinarum Vol III Systematics of Pleurothallis Luer 1986;

Orchids of Bolivia Vol 1 Pleurothallidinae Vasquez & Ibisch 2000;

Orchids of Bolivia Vol 1 Pleurothallidinae Vasquez & Ibisch 2000 as P cyclophylla photo/drawing good;

Lindleyana Vol 16 No 4:241 Pridgeon & Chase2001 as Acianthera agathophylla;

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

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 Drawing fide;

Orquideas de la Serrania del Baudo Misas Urreta 2006 drawing/photo fide;

Harvard Papers in Botany , Vol. 20, No. 1, pp. 3968 2015, NEW SPECIES AND NOMENCLATURAL NOTES IN THEPLEUROTHALLIDINAE (ORCHIDACEAE) FROM BRAZIL Luer & Toscano 2015 as Acianthera agathophylla Drawing fide;

A taxonomic synopsis of Acianthera (Orchidaceae: Pleurothallidinae) in Peru, including two new species Damian, Chiron and Mitidieri 2018 as Acianthera agathophylla;

Pleurothallids Neotropical Jewels Vol 1 Karremans & Viera 2020 as Acianthera agathophylla photo fide

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