Pleurothallis fumioi T.Hashim. 1971 SUBGENUS Acianthera [Scheidw.] Luer 1986
Drawing by © Carl Luer and The Swiss Orchid Foundation at the Jany Renz Herbaria Website
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Common Name Fumio's Pleurothallis [Japanese Dr Fumio Mackawa Leader of University of Tokyo Expedition to Andes 1900's]
Flower Size .2" [5 mm]
Found in Puno and Madre de Dios departments of Peru at elevations around 520 meters as a mini-miniature sized, hot to warm growing, caespitose epiphyte with slender, erect, triquetrous ramicauls enveloped by 2 thin, tubular sheaths and carrying a single, apical, erect, coriaceous, very narrowly ovate, acute, gradually narrowing below into the sessile base leaf that blooms in the late summer and fall on a congested, arising through and concealed mostly by a spathe at the apex of the ramicaul, erect, filiform, .8 to 1.2" [2 to 3 cm] long, simultaneously 3 to 4, flowered inflorescence with shorter than the ovary floral bracts.
Similar to P pantasmi but P fumioi is distinguished by a very narrow leaf bourne by a triquetrous ramicaul instead of winged ramicaul with a wider leaf, The few, thickly fleshy flowers are borne in a short crowded raceme and this is consistent with P pantasmi. The petals though in P fumioi are unguiculate and acuminate and the lobes of the lip are smaller and the callus is not centrally cleft as in P pantasmi.
Synonyms Acianthera fumioi (T.Hashim.) Luer 2004
References W3 Tropicos, Kew Monocot list , IPNI ;
Orchids of Bolivia Vol 1 Pleurothallidinae Vasquez & Ibisch 2000;
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 Acianthera fumioi;
Anales Jard. Bot. Madrid 75(1)e069: 13 2018 A taxonomic synopsis of Acianthera (Orchidaceae: Pleurothallidinae) in Peru, including two new species Damian, Chiron and Mitidieri 2018 as Acianthera fumoi;
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