Calochortus howellii |
Calochortus excavatus |
|
---|---|---|
Howell's mariposa lily |
Inyo County star-tulip |
|
Stems | slender, not branching or rarely branching in axil of cauline leaf, straight, 2–4 dm. |
slender, not branching, 1–3 dm. |
Leaves | basal persistent, 20–35 cm; blade gradually tapering distally, adaxially pubescent. |
basal usually persistent, 1–2 dm; blade linear. |
Inflorescences | subumbellate, 1–3-flowered; bracts 2, subopposite, linear to narrowly lanceolate, attenuate, 1–3 cm. |
subumbellate, 1–4-flowered; bracts paired, 3–8 cm. |
Flowers | erect; perianth open, campanulate; sepals shorter than petals, ovate-acuminate, glabrous; petals yellowish white, with purplish hairs toward base, broadly obovate, cuneate, inconspicuously fringed laterally, sparingly short-hairy adaxially, apex rounded; glands transversely oblong, slightly depressed, densely covered with short, distally branching hairs, the bases of which unite at lower margin to form inconspicuous, discontinuous membranes; filaments shorter than anthers; anthers oblong-lanceolate, apex acute to short-apiculate. |
erect; perianth open, campanulate; sepals lanceolate, 2–3 cm, apex acuminate; petals lavender, with longitudinal median abaxial green stripe, with or without blotches, broadly cuneate to obovate, 3–4 cm, with a few short hairs near gland; glands round, depressed, surrounded by conspicuously fringed membrane, densely covered with short, distally branching hairs; filaments 6–8 mm; anthers red-brown, oblong, 7–10 mm, apex obtuse. |
Capsules | erect, 3-winged, ellipsoid, ca. 2 cm, base and apex acute. |
erect, brown, lanceoloid-linear, 3-angled, 2–3 cm. |
Seeds | light-colored, irregular. |
light beige, translucent, flat. |
2n | = 20. |
|
Calochortus howellii |
Calochortus excavatus |
|
Phenology | Flowering late spring–mid summer. | Flowering spring. |
Habitat | Dry, rocky, serpentine soils | Grassy meadows in shadscale scrub |
Elevation | 300–500 m (1000–1600 ft) | 1200–2000 m (3900–6600 ft) |
Distribution |
OR
|
CA |
Discussion | Calochortus howellii is known only from the Illinois River valley, Josephine County. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Calochortus excavatus is found only in the eastern Sierra Nevada in Mono and Inyo counties. It is threatened by groundwater depletion. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 26, p. 129. | FNA vol. 26, p. 137. |
Parent taxa | Liliaceae > Calochortus | Liliaceae > Calochortus |
Sibling taxa | ||
Name authority | S. Watson: Proc. Amer. Acad. Arts 23: 266. (1888) | Greene: Pittonia 2: 71. (1890) |
Web links |