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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. aureus (Nutt.) E. Vilm.
NATIVE
Annual. Stem: thread-like, glabrous or hairy, glandular or not. Leaf: lobes 3–6 mm, linear. Inflorescence: flower 1; peduncle 5–15 mm, thread-like. Flower: calyx 4–6 mm, membrane wider than lobes; corolla funnel-shaped, tube 3–5 mm, with hairy ring inside and out, lobes 5–7 mm, oblanceolate; filaments glabrous, attached above hairy ring, in throat; stigmas 3–4 mm, exserted. New name possibly needed because Leptosiphon aureus might have been used earlier for different taxon. Following subspecies overlap in geography but do not occur together. [Online Interchange]
Unabridged note: Expanded author citation: Leptosiphon aureus (Nutt.) Benth. ex E. Vilm.

Previous taxon: Leptosiphon androsaceus
Next taxon: Leptosiphon aureus subsp. aureus

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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 23 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=80383, accessed on Apr 23 2014

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Bioregions in which Leptosiphon aureus 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.