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Datos del Proyecto Nombre (Last Modified On 1/11/2013)
 

Flora Data (Last Modified On 1/11/2013)
Family ONAGRACEAE
Contributor PHILIP A. MUNZ
Description Herbs or more rarely shrubs or even trees, with simple alternate or opposite, sometimes whorled leaves. Stipules lacking or small, caducous. Flowers mostly bisexual, axillary or in terminal racemes or paniculate clusters, the parts mostly in 4's, sometimes 2's, 5's or 6's. Floral tube':-- (hypanthium) adnate to ovary and usually prolonged beyond into a funnelform or tubular structure at the summit of which are the sepals, petals and stamens. Sepals 4, or 2, 5, or 6. Petals 4, or 2, 5, or 6. Stamens as many or twice as many as the petals, sometimes half as many; if of 2 series, those at the base of the petals often shorter. Anthers mostly linear, sometimes elliptical or subglobose, longitudinally dehiscent. Ovary inferior, 4, sometimes 2- or 5- or 6-loculed; style 1; stigma lobed or capitate or discoid. Fruit a capsule or berry or indehiscent and nutlike.
Habit Herb shrub
Habit tree
Distribution About 20 genera and 600 species of wide distribution, but especially west American.
Key a. Sepals persistent; floral tube not prolonged beyond the ovary. b. Stamens 8-12, in 2 series, an episepalous and an epipetalous-............. 1. JUSSIAEA bb. Stamens 3-6, in I series, episepalous .............................-....,.................... 2. LUDWIGIA aa. Sepals deciduous after anthesis; floral tube prolonged beyond the ovary. b. Fruit a capsule, dehiscent; plants herbaceous. c. Flowers regular; stamens 8, all fertile .............................-................... 3. OENOTHERA cc. Flowers irregular; stamens 2, 1 fertile and 1 petaloid.....,....-...... 4. LOPEZIA bb. Fruit a berry; plants shrubby or arborescent.-.-.,....,.......,,,.. 5. FUCHSIA
 
 
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