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POLEMONIACEAE PHLOX FAMILY

Robert Patterson, family description, key to genera

Annual, perennial herb, shrub, vine. Leaf: simple or compound, cauline (or most basal), alternate or opposite; stipules 0. Inflorescence: cymes, heads, clusters, or flower 1; bracts in involucres or not. Flower: sepals generally 5, fused at base, translucent membrane generally connecting lobes, torn by fruit; corolla generally 5-lobed, radial or bilateral, salverform to bell-shaped, throat often well defined; stamens generally 5, epipetalous, attached at >= 1 level, filaments of >= 1 length, pollen white, yellow, blue, or red; ovary superior, chambers generally 3, style 1, stigmas generally 3. Fruit: capsule. Seed: 1–many, when wetted swelling or not, gelatinous or not.
26 genera, 314 species: America, northern Europe, northern Asia; some cultivated (Cantua, Cobaea (cup-and-saucer vine), Collomia, Gilia, Ipomopsis, Linanthus, Phlox). [Porter & Johnson 2000 Aliso 19:55–91] Leptodactylon moved to Linanthus. —Scientific Editors: Robert Patterson, Thomas J. Rosatti.

Key to Polemoniaceae

GYMNOSTERIS

Dieter H. Wilken

Annual. Stem: erect, generally 1, glabrous. Leaf: 0. Inflorescence: head; bracts leaf-like, in involucre; flowers 1–5. Flower: calyx urn-shaped, scarious, abruptly awned, puberulent; corolla salverform, white to lavender, throat generally yellow; stamens attached in throat, filaments < 0.5 mm. Fruit: ovoid. Seed: 1–5 per chamber, angled.
2 species: western United States. (Greek: naked stem) Self-pollinated.
Unabridged references: [Wherry 1944 Am Mid Nat 31:216–231]

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Citation for the whole project: Jepson Flora Project (eds.) 2013. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on Oct 21 2014
Citation for this treatment: [Author of taxon treatment] 2013. Gymnosteris, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=8867, accessed on Oct 21 2014

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