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The odd and peculiar petal in the Orchis family. See Orchidaceous.

A name of certain curious orchids which bear three kinds of flowers formerly referred to three genera, but now ascertained to be sexually different forms of the same genus (Catasetum tridentatum, etc.).

A genus of tropical orchidaceous plants, the flower of one species of which (O. Papilio) resembles a butterfly.

is usually found the last year's tuber also), and are valued for their showy flowers. See Orchidaceous.

A genus of orchidaceous plants. See Dove plant.

A pouchlike portion of the perianth in certain orchides.

genous plants in which the perianth is wholly or partly petaline, embracing the Liliaceæ, Orchidaceæ, Amaryllideæ, etc.

nt (Heteranthera reniformis), having broad, reniform leaves. -- Rattlesnake plantain, an orchidaceous plant (Goodyera pubescens), with the leaves blotched and spotted with white. -- Ribwort plantain. See Ribwort. -- Robin's plantain, the Erigeron bellidifolium, a common daisylike plant of North America. -- Water pl…

A coherent mass of pollen, as in the milkweed and most orchids.

An aërial corm, or thickened stem, as of some epiphytic orchidaceous plants.

An American orchidaceous plant (Aplectrum hyemale) which flowers in early summer. Its slender naked rootstock produces each year a solid corm, filled with exceedingly glutinous matter, which sends up later a single large oval evergreen plaited leaf. Called also Adam-and-Eve.

ocess to which bodies are attached; as, the glandular retinacula to which the pollinia of orchids are attached, or the hooks which support the seeds in many acanthaceous plants.

ched to a wall, etc., as in the ivy, or may hang loosely in the air, as in some epiphytic orchids.

Any one of several kinds of orchids. [Obs.]

s, having very long legs and a long prehensile tail. -- Spider orchis (Bot.), a European orchidaceous plant (Ophrys aranifera), having flowers which resemble spiders. -- Spider shell (Zoöl.), any shell of the genus Pteroceras. See Pteroceras.

Any one of several orchidaceous plants which have only two leaves, as the species of Listera and of Liparis. [Written also twyblade.]

A genus of climbing orchidaceous plants natives of tropical America.

oscorea villosa) of the Eastern United States, having a hard and knotty rootstock. (b) An orchidaceous plant (Gastrodia sesamoides) of Australia and Tasmania.