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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

LEPTOSIPHON

Robert Patterson & Robyn Battaglia

Annual, perennial herb. Stem: generally erect, generally branched from base. Leaf: cauline, opposite, entire or lobes 3–9, palmate, linear to narrowly lanceolate or spoon-shaped, generally not fused by membrane. Inflorescence: head, open clusters, few-flowered cyme, or flower 1; bracts ± leaf-like, generally palmate-lobed, lobes generally not connected by translucent membrane; flowers sessile or not. Flower: sepals generally equal; corolla funnel-shaped, salverform, or bell-shaped, with hairy ring inside tube or generally not (determined at 10×); stamens attached at 1 level, pollen yellow.
30 species: western North America, Chile. (Greek: narrow tube, for corollas of some species) [Battaglia & Patterson 2001 Madroño 48:62–78] Calyx lobe membrane generally expressed as length relative to calyx or lobe length, or as width relative to calyx lobe.

Key to Leptosiphon

L. pygmaeus (Brand) J.M. Porter & L.A. Johnson
NATIVE
Annual. Stem: 2–10 cm, puberulent, branches at base. Leaf: lobe 2–6 mm, thread-like. Inflorescence: flower 1; pedicels 4–15 mm, thread-like. Flower: calyx 3–5 mm, membrane 2/3 calyx; corolla funnel-shaped, white or blue, tube 2–3 mm, glabrous, lobes 1–2 mm; stamens exserted, glabrous. [Online Interchange]

L. pygmaeus subsp. continentalis (P.H. Raven) J.M. Porter & L.A. Johnson
NATIVE
Flower: corolla white.
2n=18. Dry openings; < 1700 m. Sierra Nevada Foothills, Great Central Valley, Central Western California, Southwestern California (except Channel Islands). [Linanthus pygmaeus (Brand) J.T. Howell subsp. continentalis P.H. Raven] Mar–Jun [Online Interchange]

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Citation for the whole project: Jepson Flora Project (eds.) 2013. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on Apr 18 2014
Citation for this treatment: [Author of taxon treatment] 2012. Leptosiphon, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=80364, accessed on Apr 18 2014

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Bioregions in which Leptosiphon pygmaeus subsp. continentalis occurs Markers link to CCH specimen records. If the markers are obscured, reload the page [or change window size and reload]. Yellow markers indicate records that may provide evidence for eFlora range revision or may have georeferencing or identification issues.
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CCH collections by month

Duplicates counted once; synonyms included.
Species do not include records of infraspecific taxa.
Blue line denotes eFlora flowering time.