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(Last Modified On 5/29/2013)
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(Last Modified On 5/29/2013)
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Genus
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Enicostema Blume
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PlaceOfPublication
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Bijdr. Fl. Nederl. Ind. 848. 1826.
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Description
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Herbs, perennial, erect, rarely creeping, occasionally branched at the base, glabrous throughout; stems terete to angulate, frequently winged, often suc- culent. Leaves cauline, narrowly ovate to linear, sessile, often succulent. Inflores- cences + dense, axillary-clustered. Flowers small, 5-merous, sessile to subsessile; calyx narrowly campanulate to urceolate, carinate, the lobes narrowly ovate, fused at the base; corolla cylindrical becoming infundibular above, the lobes small, contorted, ? lax; stamens inserted at the middle of the corolla tube, the filaments filiform with a small double-hooded scale at the base, the anthers introrse, ob- long, erect, apiculate; pistil usually included, the ovary 1-locular, the placenta slightly intruded, the style short, the stigma capitate. Capsules septicidally 2- valved; seeds tiny, the testa foveolate. Chromosone number x = 19. Pollen grains in monads, radially symmetrical, isopolar, suboblate to oblate spheroidal, the amb rounded-triangular, 24-26 x 26-31 u, 3-colporate, the colpi short with acute or obtuse ends, the colpus membrane smooth, ora rounded to lolongate, well delimited, the diameter of apocolpia 20 u; exine 2 u thick; sexine as thick as nexine or thinner, finely reticulate or OL-pattern (E. verticillatum).
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Habit
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Herbs
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Distribution
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A small genus of 3 species in tropical regions of both hemispheres.
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Reference
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Veldkamp, J. F. A synopsis of the genus Enicostema Bl., nom. cons. (Gentia- naceae). Blumea 16: 133-136, fig. 1. 1968. Raynal, A. Revision du genre Enicostema Blume (Gentianaceae). Adansonia, ser. 2. 9: 57-85, pls. 1-10. 1969.
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