Flora of North America species comparison

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Camissoniopsis hardhamiae

Camissoniopsis luciae

Hardham's evening-primrose

Santa Lucia sun cup
Habit Herbs annual, villous, also glandular puberulent distally. Herbs annual, villous throughout.
Stems

erect, with 1 or more branches from basal rosette, to 60 cm.

erect or ascending, 20–50 cm.
Leaves

1–12 × 0.4–1.8 cm;

subsessile;

blade lanceolate, narrowly elliptic, or narrowly ovate, base truncate, margins dentate, apex acute.

1.3–5.5 × 1.2–2.5 cm;

sessile;

blade lanceolate to narrowly oblong, base rounded or truncate, sometimes cuneate, margins sparsely denticulate, apex acuminate to, sometimes, rounded.
Flowers

opening near sunrise;

floral tube 1.7–2 mm;

sepals 1.8–3.2 mm;

petals yellow, immaculate, 2–4 mm; episepalous filaments 1.5–2 mm, epipetalous filaments 1–1.5 mm, anthers 0.7 mm, 70–100% of pollen grains 4- or 5-pored;

style 3–4 mm, stigma surrounded by anthers at anthesis.

opening near sunrise;

floral tube 2–3 mm;

sepals 2.5–4.5 mm;

petals yellow, with 1 red dot basally, 4–7 mm, sometimes with a tooth arising from emarginate apex; episepalous filaments 4-pored;

s2–6 mm, epipetalous filaments 0.8–1.6 mm, anthers 0.4–1 mm, 25–60% of pollen grains tyle 3–6 mm, stigma surrounded by anthers at anthesis.
Capsules

straight or 1-coiled, subterete in living material, obscurely 4-angled when dry, 13–25 × 1.3–1.6 mm.

straight or 1.5–2+-coiled spiral, subterete in living material, obscurely 4-angled when dry, 15–20 × 1.3–2 mm.
Seeds

0.7–1.1 mm.

1.3–1.5 mm.
2n

= 42.

= 42.

Camissoniopsis hardhamiae

Camissoniopsis luciae
Phenology Flowering Mar–May. Flowering Apr–May(–Jul).
Habitat Sandy soils, limestone, disturbed oak woodlands. Openings in chaparral.
Elevation 150–1000 m. (500–3300 ft.) 300–1400 m. (1000–4600 ft.)
Distribution
from FNA
CA
[BONAP county map]
from FNA
CA
[BONAP county map]
Discussion

Camissoniopsis hardhamiae is narrowly endemic to the Outer South Coast Ranges. Populations are very local, known only from a few localities in sandy soil in disturbed oak woodland, southernmost Monterey to central San Luis Obispo County. P. H. Raven (1969) determined C. hardhamiae to be self-compatible and primarily autogamous. The species is apparently a hexaploid derived via hybridization between the tetraploid C. intermedia (2n = 28) and the diploid C. micrantha (2n = 14).

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Camissoniopsis luciae is known from the Santa Lucia Mountains, Monterey County, and scattered southward to San Benito, San Luis Obispo, and Santa Barbara counties. P. H. Raven (1969) determined C. luciae to be self-compatible and primarily autogamous. The species is a hexaploid that parallels the widespread diploid C. hirtella in the variable notching of its petals. Presumably, it has been derived from the tetraploid C. intermedia (2n = 28) and the diploid C. hirtella (2n = 14), but it is rather easily separated from both by the absence of glandular hairs in the inflorescence, relatively large flowers, and pollen characteristics.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 10. FNA vol. 10.
Parent taxa Onagraceae > subfam. Onagroideae > tribe Onagreae > Camissoniopsis Onagraceae > subfam. Onagroideae > tribe Onagreae > Camissoniopsis
Sibling taxa
C. bistorta, C. cheiranthifolia, C. confusa, C. guadalupensis, C. hirtella, C. ignota, C. intermedia, C. lewisii, C. luciae, C. micrantha, C. pallida, C. robusta
C. bistorta, C. cheiranthifolia, C. confusa, C. guadalupensis, C. hardhamiae, C. hirtella, C. ignota, C. intermedia, C. lewisii, C. micrantha, C. pallida, C. robusta
Synonyms Camissonia hardhamiae Camissonia luciae
Name authority (P. H. Raven) W. L. Wagner & Hoch: Syst. Bot. Monogr. 83: 204. (2007) (P. H. Raven) W. L. Wagner & Hoch: Syst. Bot. Monogr. 83: 205. (2007)
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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