Crassulaceae


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Crassulaceae

[‚kras·ə′lās·ē‚ē]
(botany)
A family of dicotyledonous plants in the order Rosales notable for their succulent leaves and resistance to desiccation.

Crassulaceae

 

a family of dicotyledonous plants including herbs, subshrubs, and dwarf shrubs. The plants usually have succulent stems and fleshy leaves. The flowers have a double perianth and are regular and most often bisexual; they usually are four- or five-parted and gathered cymose inflorescences. The sepals and petals are usually free. The fruit is usually multiple. Most species are succulents—that is, they are adapted to life in arid or waterless regions. Many reproduce vegetatively, for example, by axillary buds or by leaf or stem cuttings. Some are viviparous.

There are as many as 35 genera, embracing about 1,400 species. Most are commonly found in southern Africa, Mexico, and the Mediterranean region, chiefly in arid, rocky places. The USSR has about 120 species, mainly of the genera Sedum, Rosularia, and Rhodiola. Many Crassulaceae, particularly those of the genera Echeveria, Crassula, and Sempervivum, are often cultivated as ornamentals.

REFERENCE

Borisova, A. G. “Tolstiankovye—Crassulaceae DC.” In Flora SSSR, vol. 9. Moscow-Leningrad, 1939.

M. E. KIRPICHNIKOV

References in periodicals archive ?
The more common structural types are: colestane, stigmastane and ergostane, apart from the Crassulaceae family which produces highly oxydised bufadienolides.
17 Sep 1833 (Crassales).--Type: Crassula L.; Crassulaceae J.
de especies Asteraceae 32 50 Fabaceae 23 38 Poaceae 18 27 Orchidaceae 14 21 Pteridaceae 7 15 Solanaceae 6 14 Bromeliaceae 4 12 Convolvulaceae 3 11 Rubiaceae 6 10 Acanthaceae 7 8 Commelinaceae 4 8 Onagraceae 4 8 Selaginellaceae 1 8 Apocynaceae 6 7 Crassulaceae 2 7 Lamiaceae 2 7
Antihyperglycaemic potential of the water-ethanol extract of Kalanchoe crenata (Crassulaceae).
H MX MTX, P CRASSULACEAE Echeveria bifurcata H NCM MTX, BQ, BC Rose Echeveria mucronata H MX BQ, BC Schltdl.
The name derives from the substantial diel change in organic acid content of photosynthetic organs and the fact that the pathway was originally studied in plants of the family Crassulaceae. In terrestrial species CAM is best represented in arid land floras, a fact generally understood to result from the greater water-use efficiency conferred upon plants with this photosynthetic pathway (Kluge & Ting, 1978).
Los miembros de las familias Compositae, Acanthaceae, Alliaceae, Cucurbitaceae, Crassulaceae, Orchidaceae, Malvaceae y Malpighiaceae son los principales responsables de esta desigualdad numerica.
Kalanchoe pinnata (Lamarck) Persoon (Crassulaceae) is a medicinal plant largely used in the folk medicine for the treatment of gastric ulcer, pulmonary infections, and rheumatoid arthritis (Perry and Metzger 1980).
Se encontro una alta diversidad de especies suculentas (54 spp., 12,9%), pertenecientes a las familias Agavaceae, Aloaceae, Bombacaceae, Bromeliaceae, Cactaceae, Crassulaceae, Euphorbiaceae, Loranthaceae, Molluginaceae, Orchidaceae, Piperaceae, Portulacaceae, Rubiaceae, Urticaceae y Viscaceae (Tabla 3).
Aceraceae Eurasia Aeonium arboreum Crassulaceae Macaronesia (L.) Webb & Berthel.