Flora of North America species comparison

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Collinsia antonina

San Antonio collinsia
Habit Annuals 4–15 cm.
Stems

erect.
Leaf

blades oblong, margins crenate.
Inflorescences

± finely scaly, usually sparsely, finely glandular;

nodes 1–3-flowered;

flowers not crowded;

distalmost bracts linear, 2–3 mm.
Pedicels

ascending to spreading, proximalmost longer than calyx, distalmost equal to calyx, visible.
Flowers

calyx lobes lanceolate, slightly surpassing capsule, apex blunt to rounded, inner face white-hairy;

corolla purple, lobes purple, rarely white, throat white with red-purple spots at base of banner, 4.5–8 mm, glabrous;

banner length 1 times wings, lobe base without folds;

stamens: abaxial filaments glabrous, adaxials sparsely hairy, basal spur 0.
Seeds

6–8, oblong, 1.5–2 mm, margins thickened, inrolled.
2n

= 14.

Collinsia antonina
Phenology Flowering Mar–Apr.
Habitat Margins of oak scrub on screes.
Elevation 200–400 m. (700–1300 ft.)
Distribution
from FNA
CA
[BONAP county map]
Discussion

Collinsia antonina is geographically narrowly endemic, known only from Monterey County. It occurs on scree derived from whitish siliceous shale of the Monterey Formation at the edge of woodlands near the shade of Quercus john-tuckeri. It is morphologically similar to C. parryi, which lacks the coarse white hairs on the inner face of the sepals. DNA studies (B. G. Baldwin et al. 2011) show a more distant relationship between C. antonina and C. parryi than suspected from morphology alone.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 17, p. 66.
Parent taxa Plantaginaceae > Collinsia
Sibling taxa
C. bartsiifolia, C. callosa, C. childii, C. concolor, C. corymbosa, C. grandiflora, C. greenei, C. heterophylla, C. latifolia, C. linearis, C. multicolor, C. parryi, C. parviflora, C. rattanii, C. sparsiflora, C. tinctoria, C. torreyi, C. verna, C. violacea, C. wrightii
Synonyms C. antonina subsp. purpurea
Name authority Hardham: Leafl. W. Bot. 10: 133. (1964)
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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