Abstract
Evergreen, rushlike plants, generally dioecious or rarely monoecious; caespitose, rhizomatous or stoloniferous. Culms photosynthetic, simple or branching verticillately or dichotomously; terete, compressed or quadrangular; surface smooth, tuberculate, pitted, striate or sulcate. Leaves generally reduced to sheaths in the adult plants; sheaths caducous or persistent, tightly or loosely convoluted or flat, split to the base; sheath apex often with large membranous lobes or a smaller membranous margin; mucro absent or developed into a small awn or rarely a leaflike blade. Leaf morphology of juvenile culms often different, with relatively larger mucro or leafblade; in some taxa this morphology coexisting with adult morphology. Inflorescence spicate or paniculate, sexually differentiated or the two sexes alike. Spathes persistent or caducous, obscuring the flowers or relatively minute. Flowers aggregated into spikelets or solitary, subtended by 1 or rarely 2 membranous to bony bracts, which may be longer or shorter than the flower; spikelets with 1-many flowers, often with the lower bracts sterile. Flowers unisexual, rarely hermaphrodite. Perianth of 6 tepals in 2 whorls, occasionally less or completely absent; segments all similar or variously differentiated, membranous to bony, frequently the outer lateral tepals villous-carinate, occasionally deeply keeled and then flowers appearing winged. Male flowers with 3 stamens opposite the inner tepals, filaments free or rarely fused, slender; anthers dorsifixed, 1(− 2)-thecate, dehiscing by longitudinal slits; usually with a minute pistillode. Female flowers with stamens wanting or reduced to staminodes; ovary superior, free, 1–3-celled, with 1–3 styluli which may or may not be fused below into a style, inner surface stigmatic and finely branched, ovules solitary in each cell and pendulous. Fruit a 1–3-Jocular capsule or a 1-locular nut, which may be sessile or stipitate on a fleshy pedicel, and which may be variously ornamented. Seeds rotundate to oblong-triangular, smooth, striate to variously tubercled. Endosperm starchy; embryos disc-shaped, small, adpressed to the micropyle.
H.P.L. has been responsible for the generic classification of the African and Madagascan taxa while the treatment of the extra-African groups is by B.G.B. and L.A.S.J.
Deceased.
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Linder, H.P., Briggs, B.G., Johnson, L.A.S. (1998). Restionaceae. In: Kubitzki, K. (eds) Flowering Plants · Monocotyledons. The Families and Genera of Vascular Plants, vol 4. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-662-03531-3_41
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