Calochortus howellii |
Calochortus monanthus |
|
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Howell's mariposa lily |
Shasta River mariposa lily, single-flower mariposa-lily |
|
Habit | Plants bulbose; bulb coat membranous. | |
Stems | slender, not branching or rarely branching in axil of cauline leaf, straight, 2–4 dm. |
not branching, straight. |
Leaves | basal persistent, 20–35 cm; blade gradually tapering distally, adaxially pubescent. |
basal withering; blade linear-attenuate. |
Inflorescences | subumbellate, 1–3-flowered; bracts 2, subopposite, linear to narrowly lanceolate, attenuate, 1–3 cm. |
1-flowered, long-peduncled; bracts opposite. |
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, turbinate to campanulate; sepals lanceolate, attenuate, ca. 4 cm; petals pinkish, with chevron-shaped, dark red blotch distal to gland, obovate, cuneate, rounded, ca. 5 cm, with few flexible hairs near gland, margins irregularly dentate distally; glands oblong, not depressed, densely covered with slender, unbranched hairs; filaments lanceolate-linear, shorter than anthers; anthers short-tipped. |
Capsules | erect, 3-winged, ellipsoid, ca. 2 cm, base and apex acute. |
erect, linear, angled. |
Seeds | light-colored, irregular. |
unknown. |
2n | = 20. |
|
Calochortus howellii |
Calochortus monanthus |
|
Phenology | Flowering late spring–mid summer. | Flowering late spring–mid summer. |
Habitat | Dry, rocky, serpentine soils | Vernal meadows |
Elevation | 300–500 m [1000–1600 ft] | 800 m [2600 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 monanthus is known only from a single collection from meadow along the Shasta River, near Yreka, Siskiyou County, by E. L. Greene in June, 1876. It is presumed extinct. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 26, p. 129. | FNA vol. 26, p. 133. |
Parent taxa | ||
Sibling taxa | ||
Name authority | S. Watson: Proc. Amer. Acad. Arts 23: 266. (1888) | Ownbey: Ann. Missouri Bot. Gard. 27: 465, plate 39, figs. 3, 4. (1940) |
Web links |