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(Last Modified On 11/13/2012)
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(Last Modified On 11/13/2012)
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Genus
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ECHEVERIA DC.
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PlaceOfPublication
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Prodr. 3:401. 1828.
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Description
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Caulescent or scarcely stemmed perennial herbs, the leaves frequently borne in a basal rosette, fleshy and succulent. Leaves spirally arranged, sessile, entire, usually glabrous and somewhat glaucous. Inflorescence usually a lax spike or raceme, the flowers arising singly or in pairs in the axils of the reduced stem-leaves. Flowers fleshy, variously colored; sepals 5, more or less free, equal or unequal, frequently erect, mostly greenish; petals 5, usually exceeding the sepals, free or somewhat united at the base, frequently erect and angled; stamens 10, the outer cycle mostly inserted at the base of the petals; carpels 5, united at the extreme base, tapered into slender styles. Fruit follicular.
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Note
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An interesting and attractive genus much used for ornamentals because of the rosettes of thick, handsome foliage. Distinctive characters frequently are lost in making herbarium sheets of such succulents, which may account for the widespread confusion of species limits. Horticulturalists have been particularly concerned with the difficulty in naming specimens accurately, and such students of the group as Britton and Rose (N. Am. Fl. 22:13-26. 1905) and von Poellnitz (Fedde Rep. Spec. Nov. 39:193-270. 1936) apparently have overdone the splitting of species.
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Distribution
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The genus occurs in the southern United States to middle South America, cen- tering in Mexico. A single species is -known to occur in Panama.
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