Chylismia munzii |
Chylismia heterochroma |
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Munz's evening primrose |
Shockley's evening-primrose |
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Habit | Herbs annual, strigillose, often densely so. | Herbs annual, glandular puberulent throughout, or glabrate and glaucous distally. |
Stems | several, 8–50 cm. |
several, 10–100 cm. |
Leaves | primarily in basal rosette and also cauline, 1.5–20 × 0.5–3 cm; petiole 0.5–5 cm; blade pinnately lobed, terminal lobe ovate to narrowly ovate, 1.3–6 × 0.6–3 cm, margins denticulate, brownish oil cells lining veins abaxially. |
primarily in poorly defined basal rosette, cauline greatly reduced when present; petiole 0.4–8 cm; blade unlobed, ovate to cordate, 2–11.5 × 1.4–5 cm, margins sinuate-dentate, brown oil cells prominently lining veins abaxially. |
Racemes | nodding, not congested, elongating in mature bud. |
erect, elongating in anthesis. |
Flowers | opening at sunrise; buds with or without subapical free tips; floral tube orange-brown inside, 2–3 mm, villous inside; sepals 4–7 mm; petals bright yellow, with red dots near base, fading pale yellow or yellowish orange, 3–10 mm; stamens subequal, filaments 4–8 mm, anthers 3–6 mm, ciliate; style 8–18 mm, stigma exserted beyond anthers at anthesis. |
opening at sunrise; buds without free tips; floral tube 2–5 mm, villous inside; sepals 1.5–3.5 mm; petals lavender, paler and often with flecks toward base, often yellow at very base, fading darker lavender, 2–6 mm; stamens unequal, filaments of antisepalous ones 1.8–3 mm, of antipetalous ones 1–2.5 mm, anthers 0.6–1 mm, glabrous or sparsely ciliate; style 4–7 mm, stigma surrounded by anthers at anthesis. |
Capsules | widely spreading, becoming sharply reflexed, clavate, 8–24 mm; pedicel 8–28 mm. |
erect, clavate, 7–13 mm; pedicel 2–5 mm. |
Seeds | 0.8–1.6 mm. |
1–1.2 mm. |
2n | = 14. |
= 14. |
Chylismia munzii |
Chylismia heterochroma |
|
Phenology | Flowering Mar–Jun. | Flowering May–Jun. |
Habitat | Mesic slopes, washes. | Alluvial and rocky slopes. |
Elevation | 600–1600 m. (2000–5200 ft.) | 600–2200 m. (2000–7200 ft.) |
Distribution |
CA; NV |
CA; NV
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Discussion | Chylismia munzii is known from middle elevations in the mountains at the north end, eastward from, and south of Death Valley, from Saline Valley and the Grapevine Mountains, Inyo County, California, and Yucca Flat, Nye County, Nevada, southward to the Kingston Range, San Bernardino County, California.P. H. Raven (1962, 1969) determined this species to be self-incompatible. It sometimes hybridizes with C. brevipes subsp. brevipes and C. claviformis subsp. aurantiaca. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Chylismia heterochroma is known from Churchill and Lander counties, Nevada, south to Lincoln and southern Nye counties, Nevada, to adjacent California (Mono Lake, Mono County, and central Inyo counties). P. H. Raven (1962, 1969) determined this species to be self-compatible and autogamous. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 10. | FNA vol. 10. |
Parent taxa | ||
Sibling taxa | ||
Synonyms | Oenothera munzii, Camissonia munzii | Oenothera heterochromas., Camissonia heterochroma, C. heterochroma var. monoensis, O. heterochroma subsp. monoensis, O. heterochroma var. monoensis |
Name authority | (P. H. Raven) W. L. Wagner & Hoch: Syst. Bot. Monogr. 83: 207. (2007) | (S. Watson) Small: Bull. Torrey Bot. Club 23: 193. (1896) — (as Chylisma) |
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