Odontoglossum


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Odontoglossum

 

a genus of plants of the family Or-chidaceae. They are epiphytes with a one- to three-leaved pseudobulb, that is, a thickened and somewhat flattened tuberous stem. The white, yellow, or greenish flowers are usually large, reaching as much as 16 cm across in some species. They grow in racemose or panicled inflorescences. The bracts of the perianth often have purple or brown spots.

There are approximately 200 species of Odontoglossum, growing primarily in the mountains of tropical America, from Mexico to Bolivia. Many species have been long cultivated in greenhouses for their flowers. The most common species are O. crispum, O. nobile, and the baby orchid (O. grande). There are several thousand hybrids, including crosses with other genera of Orchidaceae.

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Los porcentajes de viabilidad utilizando la prueba de tetrazolio fueron muy variables, se encontro que las especies Maxillaria sp (93,8%), Cyrtochilum sp (93,4%) y Odontoglossum lindenii (91,0%) tuvieron un alto porcentaje de viabilidad.
La prueba de tetrazolio es confiable para la determinacion de la viabilidad de las semillas de Elleanthus arauntiacum, Epidendrum sp, Maxillaria sp, Odontoglossum lindenii, Prosthechea sp, Telipogon dubios, Stelis sp, Elleanthus sp, Epidendrum elongatum y Cyrtochilum sp, debido a que es una solucion incolora que puede penetrar facilmente las semillas.
Reichenbach 1856) and for which generic placements in Odontoglossum Kunth and Chameleorchis Senghas and Luckel were subsequently proposed (Anonymous 1870, Senghas 1997).
SC 50 (L21/1) Odontoglossum ramulossum (L30/5; L18/1) Cheilanthes lendigera (L30/4; L21/0.
Actualmente los virus mas importantes desde el punto de vista economico y de prevalencia son el mosaico del Cymbidium ("cymbidium mosaic potexvirus", CymMV) y el virus de la mancha anillada del Odontoglossum ("odontoglossum ringspot tobamovirus", ORSV) tambien denominado TMV-O (Lawson 1991).
Continue the conversation and you'll discover the expertise necessary to produce show-stopping cattleyas, odontoglossums and calanthes took 30 years to acquire.
North East of England Orchid Society, talk, Odontoglossums, by John Gay, Community Centre, Bowburn, 7.
Worcestershire Orchid Society, talk, Cultivation of Odontoglossums, by Mr Gordon Nash, Astley and Dunley Village Hall, 7.