Allium dichlamydeum |
Allium elmendorfii |
|
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coast onion, coastal onion |
elmendorf's onion |
|
Bulbs | 1–3, increase bulbs absent or ± equaling parent bulbs, never appearing as basal cluster, not clustered on stout primary rhizome, ovoid to ± globose, 10–15 mm; outer coats enclosing 1 or more bulbs, brown, prominently cellular-reticulate, membranous, cells arranged in ± vertical rows, forming distinct herringbone pattern, transversely elongate, V-shaped, without fibers; inner coats white, cells obscure, arranged in vertical rows, forming distinct herringbone pattern, transversely elongate, V-shaped. |
1–3, larger bulbs each bearing 3–10 basal bulbels surrounding roots, not clustered on stout, primary rhizome, ovoid, 1–1.5 × 0.8–1.5 cm; outer coats enclosing 1 or more bulbs, thin, membranous, lacking reticulation, without persistent fibers; inner coats whitish, cells vertically elongate or contorted, walls very sinuous. |
Leaves | persistent, withering from tip by anthesis, 3–6, basally sheathing, sheaths not extending much above soil surface; blade solid, subterete or ± channeled, arcuate to ± tortuous, 7–25 cm × 1–3 mm, margins entire. |
persistent, green at anthesis, 3–6, basally sheathing, sheaths not extending much above soil surface; blades solid, flat, channeled, 15–40 cm × 1–3 mm, margins entire. |
Scape | persistent, solitary, erect, solid, terete, 10–30 cm × 2–3 mm. |
persistent, 1–3, clustered, erect, solid, terete, 15–40 cm × 1–4 mm. |
Umbel | persistent, erect, compact, 5–30-flowered, conic to hemispheric, bulbils unknown; spathe bracts persistent, 2, 4–6-veined, broadly ovate, ± equal, apex abruptly acuminate. |
persistent, erect, loose, 10–30-flowered, hemispheric, bulbils unknown; spathe bracts persistent, 3–4, 4–5-veined, ovate, ± equal, apex acuminate. |
Flowers | campanulate, 9–12 mm; tepals ± erect, deep reddish purple, ovate, unequal, inner shorter and narrower than outer, becoming rigid and ± carinate in fruit, margins entire or inner minutely denticulate, apex acute to obtuse, spreading to recurved at tips; stamens included; anthers yellow; pollen yellow; ovary crested; processes 3, central, 2-lobed, minute, margins entire; style linear, equaling stamens; stigma capitate, scarcely thickened, unlobed or minutely 3-lobed; pedicel 5–20 mm. |
± stellate to campanulate, 5–6 mm; tepals erect or ± spreading, ± flexuous, white or pinkish, lanceolate, ± equal, papery and withering away from fruit, margins entire or nearly so, apex obtuse, midribs thickened; stamens included; anthers yellow; pollen yellow; ovary crestless; style linear, equaling stamens; stigma capitate, unlobed to distinctly lobed; pedicel 1–2.5 mm, elongating in fruit. |
Seed | coat dull or shining; cells minutely roughened. |
coat shining; cells smooth. |
2n | = 14. |
= 14. |
Allium dichlamydeum |
Allium elmendorfii |
|
Phenology | Flowering May–Jul. | Flowering Mar–early Apr. |
Habitat | Dry, clay soils on or near sea cliffs | Sandy soil |
Elevation | 10–50 m (0–200 ft) | 100–200 m (300–700 ft) |
Distribution |
CA
|
TX |
Discussion | Of conservation concern. Allium elmendorfii is known only from the Carrizo sands of eastern Bexar, Frio, Wilson, and Atacosa counties. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
|
Source | FNA vol. 26, p. 264. | FNA vol. 26, p. 255. |
Parent taxa | Liliaceae > Allium | Liliaceae > Allium |
Sibling taxa | ||
Name authority | Greene: Pittonia 1: 166. (1888) | M. E. Jones ex Ownbey: Res. Stud. State Coll. Wash. 18: 218, fig. 8. (1951) |
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