Habenaria macilenta (Lindl. ex Benth.) Rchb.f. 1865 SECTION Pentadactylae Urban
Photos by © Joćo A. N. Batista; Batista F. da Silva; Luciano de Bem Bianchetti and the Orquideas de Minas Gerais; El Genero Habenaria
Drawing Drawing by © Joćo A. N. Batista; Joćo Batista F. da Silva; Luciano de Bem Bianchetti and the The genus Habenaria (Orchidaceae) in the Brazilian Amazon
LATER
Common Name The Insignificant Habenaria
Flower Size 1.2" [3 cm]
Found in Guyana, Fr Guiana, Surinam and northern and central Brazil in open grasslands at elevations up to 1000 meters as a small sized, hot to warm growing terrestrial with a oblong, subterranean tuber giving rise to an erectslender, delicate stem carrying 2 to 10, remotely spaced, larger below, erect-patent, linear, acute, basally clasping leaves grading above to 3 remotely spaced, ovate bracts that blooms in the later spring on a terminal, erect, 1.6 to 2.4" [4 to 6 cm] long, distantly 1 to 2 flowered inflorescence with ovate, acute, as long as to shorter than and clasping the ovary floral bracts and carrying glabrous flowers.
+"In the general morphology of the flowers this species is similar to H. trifida, but distinct by the vegetative parts. In H. macilenta the plants are usually more slender and shorter (13-43 cm tall vs. (24-)40-76(-94) cm tall in H. trifida), the leaves 4-10 x 0.4-1.1 cm (vs. 9-20 x 0.9-2 cm in H. trifida), the larger leaves are usually on the lower part of the stem (vs. the larger leaves concentrated on the middle of the stem in H. trifida) and the internodes usually larger than the leaves (vs. smaller with the internodes usually covered by the leaves in H. trifida). Other differences are the the shorter pedicel (1.5-3 cm long vs. 3-9.5 cm in H. trifida), the color of the petals and lip (yellowish vs. white in H. trifida) and column structure (Batista & Bianchetti 2002). Sepals are green and the petals and lip yellowish. The species grows in marshes or seasonally humid places."
Synonyms *Bonatea macilenta Lindl. ex Benth.1843; Habenaria muelleriana Cogn. 1893; Habenaria staminodiata Schltr. 1925; Habenaria staminodiifera Mansf.1930; Rhinorchis macilenta (Lindl.) Szlach. 2012
References W3 Tropicos, Kew Monocot list , IPNI ; Flora Brasilica Vol XII I Hoehne 1940 as H staminodiata drawing good; Flora Brasilica Vol XII I Hoehne 1940 drawing ok; Orchidaceae Brasilense Pabst & Dungs 1975 drawing ok; Orchidaceae Brasilenses Band 1 Pabst and Dungs 1975 as H staminodata; Orchidaceae Brasilenses Band 1 Pabst and Dungs 1975 drawing good; Orchidaceae Brasilenses Band 2 Pabst & Dungs 1977 as H staminodiata drawing fide; Inventaire Taxonomique des Plantas de la Guyane Francaise II Les Orquidacees Cremers & Hoff 1992; +The genus Habenaria (Orchidaceae) in the Brazilian Amazon 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 drawing; Orquideas de Roirama Luz & Franco 2012 photo fide; Orchids of French Guiana Szlachetko, Veyret, Mytnik-ejsmont, Sawicka, Rutkowski and Baranov 2012 as Rhinorchis macilenta drawing hmm; Materials to the Orchid Flora of Colombia Vol 1 Szlachetko & Kolanowska 2017 as Rhinorchis macilenta drawing/photo fide
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