Brassia lawrenceana Lindl. 1841 Photo courtesy of Wilma Braga

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Common Name Lawrence's Brassia [English Orchid Enthusiast 1800's]

Flower Size 2" [5 cm]

Found in French Guiana, Surinam, Guyana, Venezuela, Colombia, Ecuador, Peru and Brazil as a medium to large sized, hot to warm growing epiphyte at elevations of 265 to 1200 meters with narrowly ovoid-ellipsoid, complanate, lightly sulcate pseudobulbs subtended by 4 to 5 pairs of distichous, imbricate sheaths, the upper pair leaf-bearing with the blades shorter than the 2 apical, narrowly oblong-elliptic, attenuate to the channeled petiolate base, acute leaves that blooms in the spring on a sub-erect arching, racemose, denesly 7 to 11 flowered, to 12 to 16" [30 to 40 cm] long inflorescence with minute floral bracts and holding the flowers above the leaves and arising on a a mature pseudobulb.

Synonyms Brassia angusta Lindl. 1844; Brassia cochleata Knowles & Westc. 1838; Oncidium lawrenceanum (Lindl.) Rchb. f. 1864; Oncidium lawrenceanum var. angustum (Lindl.) Rchb. f. :

References W3 Tropicos Kew Monocot list , IPNI ; Lankester's Epidendra Website CR ; *Edwards's Bot. Reg. 21: Misc. 2, t. 18. 1841; Symbolae Antillanae Vol VI Orchidaceae Urban 1909; Die Orchideen Schlechter 1915; Venezuelan Orchids Vol 2 Dunsterville & Garay 1961; Flora de Venezuela Volumen XV Part 5 Foldats 1970; Orchidaceae Brasilenses Band 2 Pabst & Dungs 1977 drawing fide; Venezuelan Orchids Illustrated Vol 6 Dunsterville & Garay 1976 as B angusta; Orchids of Venezuela, An Illustrated Field Guide Dunsterville & Gary 1979; Encyclopedia of Cultivated Orchids Hawkes 1987; Native Colombian Orchids COS Vol 1 1990 photo fide; The Manual of Cultivated Orchids Bechtel, Cribb, Laurent 1992 photo fide; Native Colombian Orhids COS Vol 5 1994 photo ok; Manual of Orchids Stewart 1995; Rudolf Schlechter Die Orchideen Lieferung 33-6 1997 photo fide; Venezuela; Paraiso de Orquideas Romero 1997 as B lawrenceana photo fide; Icones Orchidacearum Peruviarum Plate 607 Bennet & Christenson 2001; Flora of the Venezuelan Guayana Vol 7 Steyermark, Berry, Yatskievych and Holst 2003 drawing ok; The Pictoral Encyclopedia of Oncidium Zelenko 2005; Flora Of Ecuador # 76 225[2] Dodson & Luer 2005; Orchid Species Culture: Oncidium, Bakers 2006; Orchid Species of Peru Zelenko Bermudez 2009 photo fide as B angusta; AOS Bulletin Vol 86 #3 2016 drawing fide;

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