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Record: oai:ARNO:503193

AuthorsJ.C. Lindeman, A.L. Stoffers
JournalFlora of the Netherlands Antilles
AbstractAnnual or perennial herbs, rarely shrubby. Leaves alternate, consisting of sheath, ligule and blade. Sheaths envelopping the stem, usually with free margins; ligule borne at the mouth of the sheath, membranaceous or a rim of hairs; blades mostly elongate, flat, convolute or terete, parallel-veined. Inflorescence spicate, racemose or paniculate, bearing spikelets which consist of a shortened axis (rhachilla) and two to many scales. The two lowest scales (glumes) empty, rarely wanting; the following scales (lemmas) bearing in their axil an usually enclosed prophyll (palea) and a perfect or reduced flower. Lemma, palea and flower together forming the floret. Perfect flower consisting of 2—3 hyaline or fleshy lodicules, usually 3 (1—6) stamens and a pistil. Stamens with at anthesis rapidly elongating, filiform or ribbon-like filaments with 2-celled anthers, opening with longitudinal splits. Ovary superior, 1-celled; ovule one, anatropous; styles usually 2(1—3) with plumose stigmas. Fruit a caryopsis (i.e. the pericarp adnate to the seed) with mealy endosperm, rarely a nut, a berry or an utricle with free pericarp. Embryo small, at the base of the side opposite the hilus. About 4000 species in 500 genera; of world-wide distribution.
Document typearticle
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