Habenaria setacea Lindl. 1835 SECTION Nudae
Photos by © J. A. N. Batista; Joćo Batista F. da Silva; Luciano de Bem Bianchetti and the Orquideas de Minas Gerais; El Genero Habenaria
EARLY
Common Name The Bristly Habenaria
Flower Size 1" [2.5 cm]
Found in Minas Gerias state of Brazil, French Guiana, Surinam and Venezuela in grasslands, open scrub , low woodlands and marshy areas at elevations around 600 to 1675 meters as a small to medium sized, warm to cool growing terrestrial with a slender, delicate, flexuous stem carrying short, grass-like, straight, narrow, acute, strongly amplexicaul, basally clasping leaves decreasing in size above that blooms in the fall on a narrow, 1.6 to 3.6" [4 to 9 cm] long, laxly 2 to 10 flowered inflorescence with ovate-lanceolate, acuminate, shorter to a bit longer than the ovary floral bracts.
H stacea is easily distinguishable by its filiform anterior petal lobe which is 2 to 3 times longer than the posterior one. Similar form of petals and ratio between anterior/posterior lobe scan be found in H armata but that species leaves are wider .08 to .12" v [2 to 3 mm] versus .24 to .6" [6 to 15 mm]. Also similar in habit and can be confused with H schomburgkii but can be separated by the peculiar rostellum middle lobe and the patent leaves versus adpressed to the stem. H schomburgkii is distinguishable from H setacea by the much wider leaves, .4" [1 cm] versus .08 to .12" [.2 to .3 mm] wide. Moreover the posterior petal lobe of H schomburgkii is .2 to .24 x .06" [5 to 6 x 1.5 mm] and in H setacea it is .12 to .2 x .12" 3 to 5 x 3 mm]. " Szlachetko & Kolanowska 2017
Synonyms Habenaria setacea var. depauperata Cogn. 1893;
References W3 Tropicos, Kew Monocot list , IPNI ;
Gen. Sp. Orchid. Pl.: 312 Lindley 1835
Flora Brasilense vol 3 part 4: 78 Cogniaux 1892
Repert. Spec. Nov. Regni Veg. Beih. 6: 48 Schlechter 1919
Repert. Spec. Nov. Regni Veg. Beih. 7: 209 Colombia Schlechter 1920;
Flora Brasilica Vol XII I: 158 Hoehne 1940
Flora Brasilica Vol XII I: Tab 105 fig III Hoehne 1940 drawing ok;
Native Orchids of Trinidad & Tobago Schultzes 1960;
Orchidaceae Brasilenses Band 1 Pabst and Dungs 1975 drawing good;
Inventaire Taxonomique des Plantas de la Guyane Francaise II Les Orquidacees Cremers & Hoff 1992;
Flora of the Venezuelan Guayana Vol 7 Steyermark, Berry, Yatskievych and Holst 2003;
Flora of the Venezuelan Guayana Vol 7 Steyermark, Berry, Yatskievych and Holst 2003 as H setacea var ecalcarata; Orquideas de Minas Gerais;
El Genero Habenaria Joćo A. N. Batista; Joćo Batista F. da Silva; Luciano de Bem Bianchetti; Rev. bras. Bot. vol.31 no.1 Sćo Paulo Jan./Mar. 2008 photo;
Orchids of French Guiana Szlachetko, Veyret, Mytnik-ejsmont, Sawicka, Rutkowski and Baranov 2012 drawing good;
Orquideas Tesoro de Colombia Vol 2 Ortiz & Uribe 2017;
Materials to the Orchid Flora of Colombia Vol 1: 165 Szlachetko & Kolanowska 2017 drawing fide
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