Collinsia antonina

Hardham

Leafl. W. Bot. 10: 133. 1964.

Common names: San Antonio collinsia
EndemicConservation concern
Synonyms: Collinsia antonina subsp. purpurea Hardham
Treatment appears in FNA Volume 17. Treatment on page 66. Mentioned on page 63, 64, 67.

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: caly× lobes lanceolate, slightly surpassing capsule, ape× 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.


Phenology: Flowering Mar–Apr.
Habitat: Margins of oak scrub on screes.
Elevation: 200–400 m.

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.

Selected References

None.

Lower Taxa

None.
... more about "Collinsia antonina"
Michael S. Park +
Hardham +
1 times wings +
alternate +, opposite +, whorled +, helical +  and subopposite +
? (?) +  and ? (?) +
San Antonio collinsia +
blue +, purple +, pink +  and white +
spreading;reflexed +
0.2 cm2 mm <br />0.002 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
drupe-like +
200–400 m. +
curved +  and straight +
hairy +  and glabrous +
1 +  and 4 +
loculicidal +  and septicidal +
Margins of oak scrub on screes. +
terminal +  and axillary +
persistent +  and deciduous +
deltate;ovate +
1-3-flowered +
4-locular +, 1-locular +  and 2-locular +
axile +  and parietal +
basal +, apical +  and superior +
tenuinucellate +, unitegmic +  and hemitropous +
campylotropous +, hemianatropous +  and anatropous +
ascending +  and spreading +
distalmost +  and proximalmost +
5 +  and 4 +
Flowering Mar–Apr. +
Leafl. W. Bot. +
minute +
cupshaped +  and campanulate +
Endemic +  and Conservation concern +
climbing +  and scrambling +
sprawling +, creeping +  and prostrate +
Collinsia antonina subsp. purpurea +
Collinsia antonina +
Collinsia +
species +
red-purple spots +  and white +
0.45 cm4.5 mm <br />0.0045 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
gibbous +  and saccate +
4 cm40 mm <br />0.04 m <br /> (15 cm150 mm <br />0.15 m <br />) +
biennial +, perennial +  and annual +