Onagraceae


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Related to Onagraceae: Polemoniaceae

Onagraceae

[‚än·ə′grās·ē‚ē]
(botany)
A family of dicotyledonous plants in the order Myrtales characterized generally by an inferior ovary, axile placentation, twice as many stamens as petals, a four-nucleate embryo sac, and many ovules.

Onagraceae

 

a family of dicotyledonous plants. They are herbs, sometimes semishrubs and shrubs, and occasionally small trees. The flowers are solitary or in inflorescences (spicate, racemose, or panicled) with leaves, for the most part regular and perfect, usually tetramerous, and with the calyx tubes joined to the ovary. The fruit is a capsule or is nutlike; occasionally it is berry-like. There are about 20 genera, embracing more than 650 species, which are found predominantly in temperate and subtropical regions. In the USSR there are six genera (for example, Epilobium, Oenothera, Fuchsia, and Clarkia) including about 70 species; some of them are raised as ornamentals. Jussieua repens, which has three types of roots—feeding, floating, and respiratory—grows in stagnant water and swamps in tropical America.

REFERENCE

Takhtadzhian, A. L. Sistema i filogeniia tsvetkovykh rastenii. Moscow-Leningrad, 1966.
References in periodicals archive ?
Interior to the mesotesta the seed cavity is "lined with very narrow elongated thick-walled cells" (Sahni, 1943: 62), suggesting the presence of the longitudinally elongated tracheoid exotegmen diagnostic of seeds of the Lythraceae, Onagraceae, and Combretaceae (Comer, 1976: 176).
Initially, Dorofeev (1963) considered seeds of these species to belong either to the Onagraceae or the Lythraceae.
Onagraceae Diporate pollen representing the genus Fuchsia is known from the Oligocene of New Zealand (Mildenhall, 1980).
Fabaceae Introduced Lespedeza cuneata Fabaceae Introduced Medicago lupulina Fabaceae Introduced Melilotus albus and Mehlotus officinalis Fabaceae Introduced Trifolium campestre Onagraceae Native Oenothera biennis Oxalidaceae -- Oxalis sp.
Onagraceae Onagraceae is a family of 18 genera having fruits that can be berries, nut, or loculicidal capsules (Wagner et al.
Family-level relationships of Onagraceae based on chloroplast rbcL and ndhF data.
58, 107, 150, 176, 178, 232, 233], Onagraceae [218],
267], Onagraceae [127, 175, 218, 265], Orchidaceae [5, 8, 13,
phytochemical similarities between Gunnera and Onagraceae (Gibbs, 1974;
Table 1 Affinities of Gannera proposed or implied by various authors Proposed Source(s) affinity Haloragaceae/ Bentham & Hooker, 1865; de Candolle, 1868; Haloragales Engler & Prand (Peterson, 1893); Schindler, 1905; Hutchinson, 1973; Cronquist, 1981; Heywood, 1993 Urticales Jussieu, 1789; Battling, 1830; Endlicher, 1837 Arialaceae Lindley, 1846 Umbellales Gibbs, 1974 Onagraceae Gray, 1854; Gibbs, 1974; Doyle & Scogin, 1988a, 1988b Vitaceae Behnke, 1981; Thorne, 1992 Cornaceae Thorne, 1992 Connaraceae Behnke,1986 Eucryphiaceae Behnke,1986 Balanophoraceae Hooker, 1856; Hansen, 1980; Mabberley, 1993 Saxifragaceae Huber, 1963; Takhtajan, 1980, 1983; Dahlgren, 1983; Doyle & Scogin, 1988a, 1988b Hamamelidaceae Chase et al.
Lentibulariaceae, Nyetaginaceae, Onagraceae, Sapotaceae, and Winteraceae