LILY FAMILY 



391 



■ 28. Allium lacunosum S. Wats. 

 Pitted Onion. Fig. 956. 



Allium lacunosum S. Wats. Proc. Am. Acad. 14: 231. 1S79. 

 Allium darisiae M. E. Jones, Contr. West. Bot. 12: 78. 190S. 



Bulb.s ovoid, the coats light colored, thick, dis- 

 tinctly pitted by the quadrate or transversely oblong 

 reticulations, the walls of the reticulations very 

 minutely sinuous. Scape 7-15 cm. high, terete; leaves 

 about equalling the scape ; bracts 2. broadly ovate, 

 acuminaie 10-15 mm. long; umbel open, 5-20-flovv- 

 ered ; pedicels 6-10 mm. long; perianth pale rose, 

 6-8 mm. long, the segments oblong-lanceolate, acum- 

 inate ; stamens nearly as long as the perianth-seg- 

 ments, the tilaments dilated at base; ovary cells with 

 an obtuse thickened ridge toward the summit on each 

 side. 



Rocky ridges, especially in serpentine, mainly Upper So- 

 noran Zone: California Coast Ranges from Marin to San 

 Diego Counties. Type locality: Mariposa Peak, Santa Clara 

 County, California. 



29. Allium nevii S. Wats. 

 Nevius's Onion. Fig'. 957. 



Allium ucrii S. Wats. Proc. Am. Acad. 14: 231. 18/9. 



Bulbs ovoid, 10-12 mm. long, outer coats purplish 

 brown, with fine compressed transversely oblong retic- 

 ulations, the outlines of the meshes not sinuous. Scape 

 slender, 15-25 cm. high, terete or slightly compressed 

 and 2-edged ; leaves 2. usually shorter than the scape ; 

 pedicels slender, 8-12 mm. long; perianth-segments 

 light rose color, lanceolate, acuminate, 6 mm. long ; 

 stamens equalling the segments ; filaments dilated be- 

 low ; capsule with 6 low crests near the summit. 



Heavy soils. Arid Transition Zone; eastern Washington to 

 western Idaho and 'eastern Oregon. Type locality : Hood Rivet . 

 Oregon. 



30. Allium campanulatum S. Wats. 



Sierra Onion. Fig'. 958. 



Allium cr.'firauulatuin S. Wats. Proc. Am. Acad. 14: 231. 1879. 

 Allium bidzi-clliac S. Wats. Proc. Am. Acad. 14: 231. 1S79. 



Bulb ovoid, 15-20 mm. long, the outer coats brown, 

 the inner white or often tinged with red ; reticulations 

 of minute meshes, the transverse walls inconspicuous, 

 the vertical prominent, extending from the base to the 

 apex of the bulb and very sinuous. Scape 2-3 dm. high, 

 terete ; leaves 2. shorter than the scape, flat, 3-4 mm. 

 wide; bracts 2, ovate, abruptly acuminate, 12-15 mm. 

 long; umbel open, often 30-40-flowered, the pedicels 

 slender.. 15-20 mm. long; periantli pale rose, 6-8 mm. 

 long, the segments thin spreading, broadly ovate-lanceo- 

 late, acute or abruptly short-acuminate ; stamens about 

 three-fourths the length of the perianth-segments, the 

 filaments slender, dilated at base; ovary with 6 prom- 

 inent central crests. 



Open coniferous forests. Arid Transition and Canadian Zones; 

 Klamath Mountains south in the Sierra Nevada, and the higher 

 altitudes of the inner Coast Ranges to the Mount Pinos region, 

 Ventura County, California. Type locality: Mariposa County, 

 California. 



