Restio (family Restionaceae) A genus of rush-like, monocotyledonous (see MONOCOTYLEDON), perennial herbs in which the stems of the plants undertake assimilation. The leaves are reduced to sheaths on the stem. The flowers are small, regular, and dioecious, arranged in spikelets, often in a nodding inflorescence. If the perianth is developed it is composed of 2 series of dry, often hyaline, segments, and has 3 stamens. The male flowers often have a rudimentary ovary, and in the female flowers several staminodes may be present. The superior ovary is made up of 1–3 carpels with a similar number of locules and styles. The fruit is dry and nut-like, or a 3-sided capsule with many endospermic seeds. Restio species are present as components of grass and sedge communities which often experience seasonal waterlogging. There are 88 species, found in Australia and S. Africa, but with little overlap in the distribution of species between these 2 regions.
More From encyclopedia.com
Delphinium , delphinium •columbium •erbium, terbium, ytterbium •scandium • compendium •palladium, radium, stadium, vanadium •medium, tedium •cryptosporidium, cymb… Rutaceae , Rutaceae A family of aromatic trees and shrubs which are sometimes thorny. The leaves are mostly compound, dotted with glands, aromatic when crushed,… Araceae , Araceae A major family of monocotyledons (Monocotyledoneae), comprising tiny to giant herbs and many bole climbers, which produce sap with irritant c… Welwitschia , Welwitschia The sole genus, with only one species (W. mirabilis) of the remarkable gymnosperm family Welwitschiaceae (related to Ephedraceae (see EPH… Orchids , orchid, popular name for members of the Orchidaceae, a family of perennial herbs widely distributed in both hemispheres. The unusually large family (… Pickerelweed , Pontederiaceae (order Liliales) A family of monocotyledonous (see MONOCOTYLEDON) freshwater, aquatic plants. The leaves have sheathing bases, often p…
About this article
Updated About encyclopedia.com content Print Article
You Might Also Like