A guidebook in orchid micropropagation

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LITHOPHYTE adj. Lithophytic litho-, stone; phyte, plant; a plant that grows on stone-- using it for anchorage, drawing food and moisture from the air and from humus collected in the crevices of the stone. An "air-plant." Orchids generally are found growing one of three ways: LITHOPHYTIC, EPIPHYTES (the majority grow in this manner), or TERRESTRIALS. LOBE A part of a segment that represents a division to about the middle LYRATE Shaped like a lyre; with an enlarged apical lobe and smaller lower ones MAQUIS Arid, stony tracts of siliceous soil, covered with shrubs but not trees, such as frequently found in mediterranean countries. MARL A chalky clay soil. MEDIUM Pl. Media – in plant tissue culture, any substance composed of distilled water, mineral salts, vitamins, sugar, hormones and other organic additives used to grow a piece of plant in vitro; for orchid cultivation, also known as substrate, the material where the orchid grows or cling into, and where it gets its nourishment and moisture.. MEMBRANACEOUS Thin and more or less translucent MENTUM The chin-like protuberance occurring in certain orchid flowers, formed usually by the bases of the lateral sepals with the elongated column-foot MERICLONE An exact genetic copy of another plant produced by meristem culture. MERISTEM Tissue composed ofDividing cells to produce tissues and organs, located in small amounts within the growth buds and root tipsThe growing point of shoots. MERISTEM CULTURE A laboratory technique that involves the taking of the growing meristem tip from within the new growth and culturing the nucleus of cells, in a similar way to germination of orchid seeds artificially. MESOCHILE The intermediate or middle part of the lip of orchids when this structure is separated into three distinct parts, as in Stanhopea MICROPROPAGATION - A term referring to plant tissue culture technique, an artificial and aseptic way of plant propagating. MONANDROUS With one stamen MONOCOTYLEDON With a single cotyledon or seed-leaf MONOECIOUS With the male (staminate) flowers and the female (pistillate) flowers borne in separate inflorescences but on the same plant MONOPODIUM pl. monopodia adj. monopodial Orchids that grow primarily upwards, producing new growth at the top of the plant from the location of the previous growth. Leaves are produced alternately on either side of the central stem as it grows. Orchids with a monopodial growth pattern are less common than those with a sympodial growth pattern.

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A guidebook in orchid micropropagation by Marco Acuña - Issuu