979 



LILIACEAE 



Perianth-sogments ovate-lanceolate, acute to acuminate; stamens % to % as long as, or some- 

 times equaling, the segments. 

 Ovary crests consisting of a curved ridge; bulb-coats mostly mth faint reticulation; north- 

 ern Sierra Nevada. 



Filaments dilated at base but distinct 24. A. anccps. 



Filaments united by thin dilated bases into a sort of cup 2.5. A. modoccnse. 



Ovary with ridges of the lobes produced above into prominent crests; filaments distinct; 

 bulb coats not reticulated ; Coast Ranges. 



Umbels loose (pedicels 6 to 13 lines long) 20. A. faleifolium. 



Umbels more compact (pedicels 4 to 7 lines long) 27. A. breweri. 



1. A. validum "Wats. Swamp Onion. Scape stout, 2-edged above, 3 to 6 

 lines in diameter, lio to 3 (or 31^) feet higli ; Indb lo to li,4 inelies thick and 

 IV2 to 2 times as long, crowning a very stout rootstock; roots thick and coarse; 

 bulb-coats white to liglit reddish-brown, prominently ribbed, continuous with 

 the broad leaves, these 4 to 6 lines wide, 1 to 2 (or 3) feet long; perianth-segments 

 3 to 6 lines long, lanceolate-acuminate, rose-color to nearly white ; stamens and 

 style usually exserted ; capsule large, subglobose, not crested. 



Wet meadows. Sierra Nevada north to Siskiyou Co., thence southerly to 

 Trinity Co. ; 4000 to 9000 feet. Common. Also in Oregon. 



Loes. — Garfield Forest, Sequoia Park, Jepson 4661; Farewell Gap, Jepson 1145; Lake 

 Merced, Yosemite Park, Jepson 3214; Kennedy Mdws., A. L. Grant 178; SUver Lake, Amador 

 Co., MuUikcn 139; Suzy Lake, El Dorado Co., Jepson 8184; Donner Lake, Sonne; Warner Mts., 

 L. S. Smith 1131; Cedar Spr., Mt. Shasta, Jepson; Shackelford Creek, w. Siskiyou Co., Butler 

 112; Twin Lakes, Trinity Co., Eastwood. 



Eef. — Allium validum Wats. Bot. King, 350 (1871), tyjw loc. Mono Pass, Bolander 6248. 



2. A. haematochiton Wats. Scape stout, flexuous, 7 to 12 inches high : bulb 

 elongated-ovoid, 1 - to % inch broad, its coats usually deep red, rarely jiale pink ; 

 leaves many, abruptly narrowing or filifonu above the broad sheaths ; pedicels 

 numerous, y^ to 1 incli long; perianth-segments deep rose-color (or often nearly 

 white) witli darker midnerve, broadly ovate-acute, 3 to 4 lines long; filaments 

 % as long as the perianth-segments, narrowly subulate, with adnate deltoid bases ; 

 ovary white, truncate with very short rounded or undulate dark red crests. 



Dry hills and mountain slopes from San Luis Obispo Co. to San Diego Co. 



Locs. — San Luis Obispo, Summers: Lockwood Valley, Mt. Pinos, Hall 6333; Banning, 

 M. J. Smith 300; Strawberry Valley, San Jacinto Mts., Hall 2096; Palomar, Jepson 1487; 

 La Mesa, San Diego Co., Jepson 6679. 



Eefs. — Allium h.\ematochiton Wats. Proc. Am. Acad. 14:227 (1879), type loc. San Luis 

 Obispo, Brewer 462; Abrams, Fl. Los Ang. 84 (1904). 



3. A. unifolium Kell. Scape stout, 1 to 2 feet high, rising from a deeply 

 seated short horizontal rootstock bearing one or a few corms, only the rootstock 

 or base of scape rooting; reticulation of corm coats irregidar to vertical undu- 

 late ; leaves 4 or 3 ; bracts 2, large, aeiuninate, membranous ; umbels 10 to 30- 

 flowered, the pedicels 1 to Ito inches long; flowers lavender-pink; segments 

 broadly oblong-ovate, 5 to 7 lines long, 1 ■{ longer than the stamens and style ; 

 ovary not crested, but with quadratish lobes. 



Rich moist lands in the valleys or open hills : Coast Ranges, 20 to 400 feet, 

 from Monterey Co. north to Humboldt Co. Local. 



Biol. Note. — The stem arises from a corm which through exhaustion becomes a rootstock 

 as is evidenced by the husk of the former corm which for a time surrounds it. The rootstock 

 sends out two prongs in opposite directions or nearly, each developing a corm. Apparently 

 these new corms become independent the next season, each sends up a stem, and at the same 

 time develops two new corms as the parent corm becomes depleted. 



Locs. — Pacific Grove, Heller 6845; Mt. Diablo, Jepson 7588; Berkeley and Mt. Tamalpais, 

 ace. Behr: Conn Valley, Napa Co., Jepson; Ft. Bragg, W. C. Mathews 51; White Thorn Valley, 

 Mattole Eiver, Traci/"5004; Eureka, Tracii 4078. 



Eefs,— Allium unifolium Kell. Proc. Cal. Aciid. 2:112, f. 35 (1863), type loc. Oakland; 

 Wats. Bot. King, 486, p!. 36, figs. 9-10 (1871); Baker, Bot. Mag. t. 6320, figs. 1-4 (1877); 

 Behr, Fl. Vic. S. F. 287 (1888) ; Jepson. Fl. W. Mid. Cal. 119 (1901). Var. l.\cteum Greene, 

 Pitt. 2:55 (1890), type loc. San Luis Obispo Co., Lemmon. Stouter and more succulent; 

 perianth white. — Ex. char. 



