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Key to families | Table of families and genera
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Annual to shrub [(± tree-like or climbing)], fleshy. Leaf: generally simple, alternate or opposite, in dense to open, basal (or terminal) rosettes or basal and cauline, not in rosettes, reduced distally or not, margin often ± red. Inflorescence: generally cyme, generally bracted. Flower: generally bisexual; sepals generally 3–5, generally ± free; petals generally 3–5, ± free or fused; stamens >> to = sepals, epipetalous or not; pistils generally 3–5, simple, fused at base or not, ovary 1-chambered, placenta 1, parietal, ovules 1–many, style 1. Fruit: follicles, generally 3–5. Seed: 1–many, small.
± 33 genera, ± 1400 species: ± worldwide, especially dry temperate; many cultivated for ornamental. [Eggli (ed.) 2003 Illus Handbook Succulent Plants 6 (Crassulaceae). Springer] Water-stressed plants often ± brown or ± red. Consistent terminology regarding leaves, bracts difficult; in taxa with rosettes (e.g., Aeonium, Dudleya, some Sedum), structures in rosettes are leaves, those on peduncles are bracts, and those subtending flowers are flower bracts; in taxa where inflorescence is terminal, rosette leaves may "become" bracts as stem rapidly elongates to form inflorescence. Seed numbers given per follicle. —Scientific Editor: Thomas J. Rosatti.
Key to Crassulaceae
Shrub. Leaf: opposite, sessile; margin entire. Inflorescence: terminal. Flower: pendent, calyx, corolla circumscissile at base in fruit; sepals 5, ± free; corolla lobes 5, tube > sepals, often > lobes; stamens 10, epipetalous on tube; pistils erect, ± free. Seed: many, elliptic, ridged.
9 species: especially southern Africa; some cultivated for ornamental. (Greek: cavity)
Unabridged references: [Toelken 1985 Fl Plant South Africa 14:3–17]
Plant < 1 m, erect, branched below, glabrous [or not]. Leaf: generally 2–4 pairs, ± clustered near stem tips or not, 5–18 cm, obovate to wedge-shaped, glaucous; tip rounded to obtuse, abruptly pointed. Inflorescence: 10–30-flowered, peduncle 20–40(50) cm, thick, ± bractless; pedicels pendent in flower, erect in fruit. Flower: sepals 2–5 mm; corolla orange to red or pink, tube (15)20–25 mm, cylindric, with hairy ring in proximal 1/4, lobes 10–15 mm, recurved.
2n=18. Coastal bluffs, dunes, or persisting from cultivation; < 100 m. c&s Central Coast, South Coast; native to southern Africa. Highly TOXIC to sheep and goats but rarely eaten. Jun–Jul [Online Interchange]
Previous taxon: Cotyledon
Next taxon: Crassula
Citation for the whole project: Jepson Flora Project (eds.) 2013. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on Mar 9 2014
Citation for this treatment: [Author of taxon treatment] 2012. Cotyledon, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=77198, accessed on Mar 9 2014
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|Cotyledon orbiculata var. oblonga|
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© 2006 Joseph Dougherty/ecology.org
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