Allium burlewii

Davidson

Bull. S. Calif. Acad. Sci. 15: 17. 1916

Treatment appears in FNA Volume 26. Treatment on page 273. Mentioned on page 233, 274.
Click plate for higher resolution version.
Bulbs usually solitary, not clustered on stout, primary rhizome, ovoid, 1.5–2.5 × 1–1.5 cm; outer coats enclosing single bulb, brown or grayish, membranous, lacking cellular reticulation or cells arranged in only 2–3 rows distal to roots, ± quadrate, without fibers; inner coats white, cells not visible. Leaves usually deciduous with scape, withering from tip at anthesis, 1, basally sheathing, sheath not extending much above soil surface; blade solid, flat or broadly channeled, ± falcate, 8–33 cm × 1–10 mm, margins entire. Scape usually forming abcission layer and deciduous with leaves after seeds mature, frequently breaking at this level after pressing, solitary, erect, solid, terete, 2–20 cm × 1–3 mm. Umbel persistent, erect, compact, 8–20(–30)-flowered, globose to conic, bulbils unknown; spathe bracts persistent, 3, 9–13-veined, broadly ovate, ± equal, apex abruptly acuminate. Flowers conical to campanulate, 7–10 mm; tepals strictly erect, dull purplish with darker midveins, ovate, ± equal, becoming membranous, withering in fruit, margins entire, apex obtuse; stamens equaling tepals or ± exserted; filaments smooth proximally; anthers purple; pollen yellow or gray; ovary crestless or crested; processes 6, central, rounded, minute, margins entire; style linear, slightly longer than stamens; stigma capitate, scarcely thickened, unlobed; pedicel 6–10 mm. Seed coat shining; cells smooth. 2n = 14.

Phenology: Flowering late Apr–Jul.
Habitat: Granite sands, on dry slopes and ridges
Elevation: 1800–2800 m

Discussion

References

None.

Lower Taxa

No lower taxa listed.