28 Juni 2010

Lycaste

Lycaste (in Portuguese: Licaste or Licasta) is a genus of the orchid family (Orchidaceae). It was proposed by John Lindley in 1843, published in Edwards's Botanical Register 29: Misc. 14. The type species, designated by AABullock in 1958, in Kew Bull. 13: 254, his is the type species Lycaste macrophylla (Poepp. & Endl.) Lindley Maxillaria macrophylla anteriormante Poepp and Endl

Etymology

The name of this genus is derived from the Greek name of Latinization: Λυκαστη (Lycaste), which was the name of the beautiful Helen of Troy's sister and daughter of Priam, as legendary narrative, poetic, alluding to the beauty of flowers in this genus.

Distribution

The genus Lycaste Groups about thirty epiphytic species occasionally land, growing tussock, forests from northwestern South America Central America from southern Mexico, Caribbean, to the edge of the Amazon, three species recorded for Brazil . Colombia is considered the center of irradiation.

Description

Its rhizome is short, with pseudobulbs section elliptical or quadrangular, smooth or grooved, the sides compressed somewhat when new hems coated with three sheets to the apex.

These are large and multinervia, plicate, pseudopecioladas, something like those of Stanhopea, often deciduous. Inflorescence a solitary, or rarely two flowers large and showy, much shorter than the leaves, usually higher than the pseudobulbs, erect, rises from the hems of the pseudobulbs. There are frequent times in several racemes that grow together, giving the impression that they are more flowers per inflorescence.

The flowers, upright, not fallen, have sepals nearly equal, and open in a single plane, straight and regular, broad at base, attached to column foot, forming small ment with this simple, give the flower an almost triangular perfect.

petals smaller than sepals. lip sessile, with some nectar accumulated at the base, this little attenuated, slightly Unguiculate, trilobed, lateral lobes raised, median margin wavy or jagged with ligulate callus, narrow and concave. A column is long and arched at the base prolonged standing viscidium simple and anther terminal housing two pairs of pollinia.



Source: http://pt.wikipedia.org/wiki/Lycaste


See Also: International Flower Delivery, Florist


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