Clarkia mildrediae |
Clarkia jolonensis |
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Mildred's clarkia |
Jolon clarkia |
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Stems | erect, to 100 cm, puberulent. |
erect, to 60 cm, glabrous, glaucous. |
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Leaves | petiole 15–40 mm; blade elliptic to ovate, 3–6 cm. |
petiole to 10 mm; blade narrowly lanceolate to lanceolate, 3–5 cm. |
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Inflorescences | open racemes, axis recurved in bud, straight only 1–3 nodes distal to open flowers; buds pendent, tip acute. |
open racemes, axis straight; buds pendent. |
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Flowers | floral tube 2–3 mm; sepals usually reflexed individually; corolla rotate, petals reddish purple, often darker flecked or spotted, narrowly obdeltate to suborbiculate, unlobed, 11–25 × 7–18 mm, length 1.4–1.6 times width; stamens 8, subequal, subtended by ciliate scales, anthers magenta or orange-red to yellow, pollen blue-gray or bright yellow to tan; ovary shallowly 4-grooved, puberulent; stigma exserted beyond anthers. |
floral tube 2–3 mm; sepals reflexed together to 1 side; corolla bowl-shaped, petals pale lavender to pinkish lavender, usually red-flecked, unlobed, 10–20 mm; stamens 8, unequal, outer anthers lavender, inner smaller, paler; ovary obscurely 4-grooved; stigma exserted beyond anthers. |
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Capsules | 20–30 mm; pedicel 0–5 mm. |
30–40 mm; pedicel 0–10 mm. |
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Seeds | brown or gray, 1.5–1.8 mm, scaly-echinate, crest 0.1 mm. |
dark gray, 1.2–1.4 mm, scaly, crest 0.2 mm. |
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2n | = 18. |
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Clarkia mildrediae |
Clarkia jolonensis |
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Phenology | Flowering Apr–Jun. | |||||
Habitat | Dry woodlands. | |||||
Elevation | 200–700 m. (700–2300 ft.) | |||||
Distribution |
California
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CA |
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Discussion | Subspecies 2 (2 in the flora). Clarkia mildrediae is closely related to, and may be derived from, C. borealis. Clarkia mildrediae subsp. lutescens is probably the direct ancestor of C. stellata. Clarkia mildrediae differs from C. borealis in petal color and inflorescence habit and from C. stellata in flower size and position of the stigma. On the basis of morphology, chromosome number and pairing, C. mildrediae appears to be one of the parents of the tetraploid species C. rhomboidea. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Clarkia jolonensis is known only from Monterey County, mainly in the Outer South Coast Ranges. It is scarcely distinguishable morphologically from C. bottae except for seed color, but attempts to produce hybrids have been unsuccessful. Although in describing C. jolonensis Parnell suggested that its range did not overlap with that of C. bottae, the ranges in fact overlap extensively in Monterey County. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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Key |
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Source | FNA vol. 10. | FNA vol. 10. | ||||
Parent taxa | Onagraceae > subfam. Onagroideae > tribe Onagreae > Clarkia > sect. Myxocarpa | Onagraceae > subfam. Onagroideae > tribe Onagreae > Clarkia > sect. Fibula | ||||
Sibling taxa | ||||||
Subordinate taxa | ||||||
Synonyms | Phaeostoma mildrediae | |||||
Name authority | (A. Heller) H. Lewis & M. E. Lewis: Madroño 12: 34. (1953) | D. R. Parnell: Madroño 20: 322. (1970) | ||||
Web links |