Oncidium


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Oncidium

 

a genus of plants of the family Orchidaceae. They are epiphytes, generally with rhizomatous, thickened stems, or pseudobulbs, bearing at the apex one or two leaves. The many-flowered inflorescence is racemose or panicled. In certain species, some of the flowers are sterile. The odd and showy blooms of some species, for example, the butterfly plant (O. papilio), resemble exotic insects. The flowers, which measure as much as 7 to 11 cm across, are yellow or brown with green, white, or reddish spots or stripes.

There are approximately 350 species of Oncidium, distributed from southern Florida and Mexico to Bolivia and Paraguay. The plants grow in tropical rain forests and in the mountains. Many species and hybrids are cultivated for cut flowers.

References in periodicals archive ?
Quanto ao comprimento das raizes de Oncidium varicosum, Kerbauy (1993) tambem obteve resultados favoraveis com a adicao de nitrato de amonio (N[H.sub.4]N[O.sub.3]) no meio de cultura MS.
selected PLBs at the leaf primordia stage for studies on the encapsulation of Dendrobium sonia, Oncidium 'Gower Ramsay', and Cattleya leopoldii as they discovered that PLBs at the leaf primordia stage gave earlier leaf and primary root formation than the promeristematic stage, and more complete germination than the first leaf stage PLBs, indicating that the developmental stage of PLBs used for encapsulation affected the germination percentage.
Proteomic and morphometric study of the in vitro interaction between Oncidium sphacelatum Lindl.
Tres de las cuatro especies del genero Oncidium que crecen en el rio Gaira estan catalogadas como especies bajo amenaza: Oncidium gloriosum, O.
Both Oncidium sensu lato and Cyrtopodium orchids appear to mimic oil-reward species belonging to the Malpighiaceae (Pemberton, 2008; Pemberton & Liu, 2008a; Pansarin et al., 2009), although this has not yet been demonstrated.
Two garden arrangements of yellow snapdragons, Rhumba roses, purple statice, oncidium spray orchids, liatris, and baby's breath adorned the altar.
En consecuencia no resulta sorprendente observar que entre las monocotiledoneas con mayor numero de representantes endemicos sobresalen Tillandsia, Epidendrum, Lepanthes, Anthurium, Encyclia, Prosthechea, Oncidium y Stelis (Cuadro 3), generos que agrupan elementos mayormente epifitos.
2003); el reporte de 38 especies de orquideas distribuidas en 11 generos en el bosque de Cuyas, destacando los generos Oncidium y Epidendrum con el mayor numero de especies (Diaz 2003); el estudio floristico y ambiental del relicto de bosque Mijal, en Morropon, reportando 76 familias, 150 generos y 216 especies, entre helechos y angiospermas, con presencia de endemismos y nuevos registros para el Peru (Sanchez & Grados 2007); el inventario floristico de fanerogamas del bosque de Cuyas, en Ayabaca, reportando 79 familias, 161 generos y 211 especies (Farfan 2007) y el estudio etnobotanico en varias comunidades campesinas asentadas en el bosque de Cuyas (Ambulay 2008).
Dam unraced half-sister to champion 3yo Taras Bulba (by Oncidium; AJC Derby etc) and 2 lesser stakes winners.