Odontoglossum tenuifolium Dalström 1996 SECTION Lobulatum Series Tenuifolium Dalstrom 2020
Photo by © Guido Deburghgraeve
Photo courtesy of Eric Hunt, plant grown by Steven Beckendorf
EARLY 
Common Name The Delicate Leafed Odontoglossum
Flower Size .8" [2 cm]
Found in Peru and Bolivia in wet and mossy cloud foressts mostly on the eastern slope of the Andes at elevations of 1900 to 3100 meters as a cool to cold growing, caespitose to alternate on a creeping rhizome epiphyte with ovoid, ancipitous, slightly compressed pseudobulbs enveloped basally by 5 to 6, distichous, uppermost foliaceous sheaths and carrying a single, apical, erect,conduplicate, linear, acute, subpetiolate base leaf that blooms in th summer, fall and early winter on an axillary, suberecdt, racemose, [11 to 18 cm] long, loosely 2 to 6 flowered inflorescence with apresssed, scale-like shorter than the ovary floral bracts and carrying stellate flowers.
Synonyms Dasyglossum callacallaense (D.E.Benn. & Christenson) Königer 2010; Odontoglossum callacallaense D.E.Benn. & Christenson 2001; Oncidium callacallaense (D.E.Benn. & Christenson) M.W.Chase & N.H.Williams 2008; Oncidium tenuifolium [Dalstrom]Chase & NH Wms. 2008; Trigonochilum callacallaense (D.E.Benn. & Christenson) Senghas 2003
References W3 Tropicos, Kew Monocot list , IPNI ; Rudolf Schlechter Die Orchideen Band 1C lieferung 44-45 pg 2763 - 2898 Brieger 2001; AOS Bulletin Vol 77 # 12 2008 as Oncidium callacallaense; AOS Bulletin Vol 77 No 12 2008 as Oncidium tenuifolium; Orchid Species of Peru Zelenko Bermudez 2009 photo fide; The Odontoglossum Story Dalstrom, Higgins & Deburghgraeve 2020 photo/drawing fide
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