Division Of Indoor And Outdoor Plants

Doritis Lindl.

Tribe Van*.         Sub-tribe Vattfirnne

This is a genus of single species of monopodial epiphytic orchids allied to Phokenopsis, found distributed in Burma to Sumatra. The generic name is derived from the Greek word meaning "spear" and also in annul the names applied to Aphrodite. It has a spear-shaped lip. These are small stemless and form dense chimp, unlike most monopodials. The leaves are 12 to 15 in number, stiff, leathery with clasping leaf bases, oblong to elliptic in shape, dark green in color often with purplish brown mottling up to 20 cm in length. The inflorescence is erect and stiff with up to 25 flowers. The flowers are 15 to 4 cm in diameter. The two lateral sepals are broader and fused to a spur like pmjection on the base of the column. The dorsal sepal and two lateral petals are equal in size, shape and color. The lip is three-lobed, the lateral lobes and a larger midlobe am with a slightly undulate margin. Them are two antennae behind the lateral lobes at the bass of the lip. The column is short, pollinias are 4 and yellowish. The genus Dorifis has been successfully hybridized with Pholaenapsis, Vanda, Kingiella and Rhynellostylis.

Doritis puithenima [dl, (Phalaenopsis antennifera Rchb.f.)—It is a spectacular species native to Burma, Thailand, Malay Peninsula, Sumatra, Laos, Viet-Nam and Cambodia, produce flowers during autumn and winter season. The stems are 15 cm long and freely rooting. The leaves am strictly spreading in a horizontal arrangement and more than 15 cm long, stiff, rigid, often purple flushed. The underside of the leaf is purple. The inflorescence is stout, erect, rigid and slender and up tab- cm tall, with 10 to 20 flowered, dense raceme. The flowers are variable in color and size, dark lavender, pale rose-purple or magenta rose. The lip is darker veined with pale lavender. There are, however, great deal of variation in this species.

Epidendrum Linnaeus

Tribe Epidendone           Sub-tribe Lnelliinae

This is another largest genera in the family Orchidaceae comprising of more than 1000 species of epiphytic orchids of America distributed between Carolina, North Louisiana to Southern Argentina, Mexico throughout West Indies and Central America, Andes and Brazil. One species Epirlendnon nocturnum is originated in West Africa. These are most popular cultivated orchids and commercially important as vol flower. 7he generic name is derived from Greek words epi, "on" and derdmo, "tree", meaning epiphytic plant growing 011 trees. There is comiderable variability in vegetative structure of this genus and two major sections are (i) those with distinct pseudo bulbs and Iii) those with reedlike growth. A few species are terrestrial and lithophyte. The pseudo bulbs are very elongated or short according to the species, with coriaceous leaves. Some leaves are thick and fleshy and  some are leathery- with two or four leaves at the apex of each pseudo bulb.