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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

LOESELIASTRUM

Dieter H. Wilken & Steven L. Timbrook

Annual, bristly, generally soft; hairs simple. Stem: erect. Leaf: generally 0 below, alternate, simple, 1–4 cm, linear to oblanceolate, entire to toothed; teeth acute to pointed or bristle-tipped. Inflorescence: bracts leaf-like; pedicels glandular. Flower: calyx lobes equal, pointed to bristle-tipped; corolla bilateral, 2-lipped, white to deep pink, upper lip generally 3-lobed, lower 2-lobed; stamens attached at or below sinuses, unequal, generally curved, included to exserted, pollen yellow; style generally exserted. Fruit: 2–5 mm, ovoid, 3-lobed in ×-section; outer wall of valve rounded or indented between walls separating chambers. Seed: gelatinous when wet.
2n=14.
3 species: southwestern United States, northern Mexico. (Latin: like Loeselia) [Timbrook 1986 Madroño 33:157–174] Self-compatible; self- to cross-pollinated.

Key to Loeseliastrum

L. depressum (A. Gray) J.M. Porter & L.A. Johnson DEPRESSED STANDING-CYPRESS
NATIVE
Leaf: largest narrowly elliptic, entire to ± toothed, tip, teeth acute to pointed. Flower: calyx lobes pointed; corolla 5–8 mm, ± 2-lipped, white, upper lip 1–2 mm, < 1/4 tube, > stamens, lobe bases with yellow blotch, lower lip ± 1 mm, lobe tips obtuse.
Sandy or clay soils of flats, gentle slopes; 1000–2100 m. East of Sierra Nevada, n Mojave Desert; to Utah. [Ipomopsis depressa (A. Gray) V.E. Grant] Apr–Jul [Online Interchange] {CNPS list}

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Citation for the whole project: Jepson Flora Project (eds.) 2013. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on Sep 19 2014
Citation for this treatment: [Author of taxon treatment] 2013. Loeseliastrum, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=80353, accessed on Sep 19 2014

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Geographic subdivisions indicated for the distribution of Loeseliastrum depressum 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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map of distribution 1
(Note: any qualifiers in the taxon distribution description, such as 'northern', 'southern', 'adjacent' etc., are not reflected in the map above, and in some cases indication of a taxon in a subdivision is based on a single collection or author-verified occurence).

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Data provided by the participants of the Consortium of California Herbaria.
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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.