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Wiktionary
odontoglossum

n. Any of vary many orchids of the genus (taxlink Odontoglossum genus noshow=1).

WordNet
odontoglossum

n. any of numerous and diverse orchids of the genus Odontoglossum having racemes of few to many showy usually large flowers in many colors

Wikipedia
Odontoglossum

Odontoglossum, first named in 1816 by Karl Sigismund Kunth, is a genus of about 100 orchids. The scientific name is derived from the Greek words odon (tooth) and glossa (tongue), referring to the two tooth-like calluses on the base of the lip. This genus of cool to cold growing orchids is to be found on open spots in the humid cloud forest at higher elevations from Central- and West South America to Guyana, with most species around the northern Andes. The abbreviation for this genus is Odm. in the horticultural trade.

Most are sympodial epiphytes, or rarely terrestrials.

The pseudobulbs are compact with leaf-like bracts at the base. They give one to three apical leaves. An arching (and sometimes erect) inflorescence grows from its base. The ruffled sepals and petals of these spectacular flowers are spreading. The lip is rather complex, entire or with three lobes. It stands erect or parallel to the long column. The high altitude species show long inflorescences with up to 150 flowers (as in O. cirrhosum), while the lower altitude species have shorter inflorescences with up to 20 flowers. These flowers may be white, red, purple, brown, yellow, or even be blotched with a showy blend of many colors.

Many of these species are in great demand with orchid lovers because of their spectacular and flamboyant flowers.

Usage examples of "odontoglossum".

There were three main rooms, one for Cattleyas Laelias and hybrids, one for Odontoglossums, Oncidiums and Miltonia hybrids, and the tropical room.

In the cool room, the first one you enter from the vestibule, the Odontoglossums were sporting their sprays, and in the middle room, the tropical room, two benches of Phalaenopsis, the hardiest of all to grow well, were crowding the aisle with racemes two feet long, but at mossiae time the big show was in the third room.

All three men were heading for the same part of the Andes to search for the same odontoglossums, and each had promised his employer that he would be the first to bring the plants home.

Passing through the first two rooms, down the aisles with silver staging and concrete benches and thousands of pots holding everything from baby seedlings to odontoglossums and dendrobiums in full bloom, I found Nero Wolfe in the warm room, standing with his thumbs on his hips, frowning at Horstmann, who in turn was scowling reproachfully at an enormous coelogyne blossom with white petals and orange keels.

The vegetation had again changed, and only the vegetable ivory tree remained, with a great profusion of wonderful orchids, among which I learned to recognize the rare Nuttonia Vexillaria and the glorious pink and scarlet blossoms of Cattleya and odontoglossum.

Inside the door of the first room, which had Odontoglossums, Oncidiums, and Miltonia hybrids, Rowcliff and the dick stopped short.