Pleurothallis barberiana Rchb. f. 1881 SUBGENUS Specklinia SECTION Muscariae Luer 1986
Photo by © Sebastain Viera Uribe
What has been known as P gongylodes Photo by Ecuagenera and their Ecuador Orchid Website
What has been known as P tsubotae
Photo by © Lynn O'Shaughnessy
TYPE Drawing by © Carl Luer and The Swiss Orchid Foundation at the Jany Renz Herbaria Website
Photos by © The Ecuagenera Website
LATER 
Common Name Barber's Pleurothallis
Flower Size .2" [5 mm]
Found in Costa Rica, Panama, Colombia and Ecuador in scrub forests found at elevations of 1650 to 3000 meters as a mini-miniature sized, cool to cold growing epiphyte with slender, erect ramicauls enveloped by 2, thin, tubular sheaths and carrying a single, apical, erect, coriaceous, narrowly obovate, subacute, gradually narrowly cuneate below into the indistinct petiolate base leaf that blooms in the later spring and summer on an erect, loose, slender, 3.2 to 3.6" [8 to 9 cm] long peduncle, to 4 to 9.2" [10 to 23 cm] long overall, flexuous, flexible, gradually lengthening, successively single flowered inflorescence arising laterally from the ramicaul and holding the flower well above the leaves.
CAUTION!!! Kew still has this one as a synonym of P aristata but Karremans and S Viera U in 2020 separated it and its synonyms [P gongylodes and P tsubotae]. The mini-miniature sized plant is easily distinguished from P aristata by the white-light ocher flower with fine dark purple blotches, Cypridia" like lip and the serrate petals.
Synonyms Humboldtia barberiana (Rchb.f.) Kuntze 1891; Humboltia barberiana (Rchb. f.) Kuntze 1891; Muscarella barberiana (Rchb.f.) Szlach. & Sawicka 2012; Muscarella gongylodes (Luer) Luer 2006; Muscarella tsubotae (Luer & R.Escobar) Luer 2006; Pleurothallis gongylodes Luer 1979; Pleurothallis tsubotae Luer & R.Escobar 1996; Specklinia gongylodes (Luer) Pridgeon & M.W.Chase 2001; Specklinia tsubotae (Luer & R.Escobar) Luer 2004; Verapazia barbaeriana (Rchb.f.) Chiron & Szlach. 2018
References W3 Tropicos, Kew Monocot list , IPNI ; Icones Pleurothallidinarum Vol III Luer 1986 as P gongylodes; Lindleyana Vol 16 No 4 2001 as Specklina gongylodes; Native Ecuadorian Orchids Vol 4 Dodson 2003 as Pleurothallis gongylodes photo fide; Icones Pleurothallidinarum Vol XXVI Luer 2004 as Specklinia tsubotae; Icones Pleurothallidinarum Vol XXVIII Luer 2006 as Muscarella tsubotae drawing fide; Icones Pleurothallidinarum Vol XXVIII Luer 2006 as Muscarella gongylodes drawing fide; AOS Bulletin Vol 77 No 9 2008 as Pleurothallis tsubotae photo fide; Pleurothallids Neotropical Jewels Vol 1 Karremans & Viera 2020 as Muscarella barberiana photo fide
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