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(Last Modified On 10/26/2012)
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(Last Modified On 10/26/2012)
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Family
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AMARYLLIDACEAE
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Description
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Chiefly scapose herbs from bulbs, corms, or tuberous rhizomes, occasionally herbaceous vines or stout xerophytes; inflorescence various; flowers usually showy, perfect, regular (in Panama); perianth of 6 separate or united petaloid segments, occasionally with an annular corona; stamens 6, filaments hypogynous or inserted on the tube of the perianth; anthers 2-celled, basifixed or versatile, dehiscing longitudinally; pistil inferior (in Panama), 3-celled (rarely 1-celled); ovules numerous; fruit a capsule or a berry.
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Key
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a. Stout acaulescent or subacaulescent xerophytes with coriaceous rigid leaves; inflorescence a massive terminal panicle. b. Perianth rotate, the segments barely united at the base; stamens shorter than the perianth -_ 1. FURCRAEA bb. Perianth funnel-shaped, the segments united into a definite basal tube; stamens conspicuously exserted ---2. AGAVE aa. Herbaceous vines with leafy stems; inflorescence chiefly umbelliform, rarely 1-flowered; perianth segments free to the base -3. BOMAREA aaa. Scapose herbs with basal, usually succulent leaves; inflorescence um- belliform or 1-flowered; perianth segments united at the base. b. Perianth without a tube (but the ovary long-beaked and resembling a narrow tube in Curculigo); plants scatteringly long-pilose, es- pecially the inflorescence. c. Fruit a capsule, not beaked - ----4. Hypoxis cc. Fruit fleshy and indehiscent, ending in a long beak -5. CURCULIGO bb. Perianth with a manifest, usually elongate tube; plants glabrous. c. Corona absent, the staminal filaments terete or narrow to their base. d. Flowers in umbels of several, large and showy; plants usually massive_____---- 6. CRINUM dd. Flowers solitary, rarely paired, rather small; plants small - 7. ZEPHYRANTHES cc. Corona present, the staminal filaments greatly dilated and petaloid at their base. d. Perianth segments broadly ovate or ovate-lanceolate, the corona annular; leaves broadly ovate, with a long narrow petiole - 8. EUCHARIS dd. Perianth segments narrowly linear, the corona scyphiform; leaves lorate, sessile 9. PANCRATIUM
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Note
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Amongst cultivated Amaryllids, the Tuberose, Polianthes, popularly known as Nardo, is very frequent. Other exotic genera of gardens include Agave, Hippe- astrum, and Sprekelia.
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