Rossioglossum williamsianum

Common Name - William's Rossioglossum [Englsih Orchid Nurseryman 1800's]

A beautiful gem among orchids with showy flowers that can not deny its relation to the elite Rossioglossum genus. The coloring of its brown and yellow flowers is subject to variation , which makes some specimens resemble Rossioglossum grande . Differences from the latter species consist mainly in Rossioglossum williumsianum's longer flower spike ,some what smaller and more numorous flowers ,moremarkedly orbiculate tepals ,and a different shape of the flower column . This species is the most thermophilic of all Rossiglossum orchids ,a quality that must be taken into account in cultivation . The plant can tolerate only a slight reduction in temperature in the winter . Rossioglossum williamsianum comes from the lower elevations of Guatemala ,Honduras and Costa Rica.

Synonyms

Odontoglossum grande var. williamsianum Rchb.f 1886; *Odontoglossum williamsianum Rchb. f. 1881;