392 



LILIACEAE 



31. Allium austinae ^I. E. Jones. Austin's Onion. 



Fis-. 959. 



Allium austinae M. E. Jones, Contr. West. Bot. 10: 85. 1902. 



Bulb ovoid, about 10 mm. long, propagating bj' bulb- 

 lets borne on the ends of slender rhizomes sometimes 

 several centimeters long, the outer bulb coats reddish 

 brown, the inner brownish white ; reticulations with 

 thickened approximate very sinuous vertical walls, as 

 thick as the meshes. Scapes slender, 1-2 dm. high ; leaves 

 2, shorter than or about equalling the scape, 2 mm. wide ; 

 bracts 2, ovate-lanceolate, acuminate. 10 mm. long, 

 3-nerved ; umbels open, 15-3S-flowered. the pedicels 10- 

 15 mm. long, slender; perianth rose-purple. 6-7 mm. long, 

 the segments lanceolate, acuminate, widely spreading ; 

 stamens about two-thirds the length of the perianth-seg- 

 ments ; crests 6, prominent, spreading. 



In gravelly soil, at high altitudes. Arid Transition and (mainly) 

 Canadian Zones; Sierra Nevada, California, extending from Plumas 

 County to the Tehachapi Mountains. Type locality: "Summit and 

 Castle Peak (Mount Stanford)," Sierra Nevada. 



32. Allium bisceptrum S. A\'ats. 

 Patis Onion. Fig. 960. 



Allintn biscet'trum S. Wats. King. Expl. 351. 1871. 



Bulb round-ovoid, about 15 mm. long, the 

 outer coats gray, the inner white ; reticulations of 

 line transversely oblong meshes, the walls, espe- 

 cially the vertical ones, very sinuous. Scapes 1-2 

 dm. high, often in pairs, terete or often somewhat 

 2-edged ;' umbels open, 15— 40-flowered, the pedi- 

 cels filiform, 15-20 mm. long; perianth rose to 

 nearly white, 6-8 mm. long, the segments ovate- 

 lanceolate, acute or acuminate ; stamens a little 

 shorter than the perianth-segments, the filaments 

 narrowly deltoid at base ; crests of the ovary thin, 

 conspicuous. 



Dry or rocky soil, mainly Arid Transition Zone; east- 

 ern slopes of the northern Sierra Nevada to the San Ber- 

 nardino Mountains and eastward to Utah. Tyi)e locality: 

 Downieville, California. 



^^s^^sg.^- 



33. Allium lemmoni S. Wats. 

 Lemmon's Onion. Pig. 961. 



Allium lemmoni .S. Wats. Proc. Am. Acad. 14: 234. 1879. 



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

 reticulations of fine transversely oblong reticulations, ar- 

 ranged in rather definite vertical rows ; propagation by 

 division. Scape 12-15 cm. high, about 1.5 min. wide, 

 scarcely flattened, narrowly 2-edged ; leaves 2, about 

 equalling the scape, 4 mm. wide ; bracts 2. broadly ovate, 

 abruptly short-acuminate, 15 mm. long, 9-nerved ; umbel 

 open, many-fiowered, the pedicels slender, 10-15 mm. long ; 

 perianth pale rose, 7-8 mm. long, the segments ovate-lan- 

 ceolate, acuminate, gibbous at base ; stamens about equal- 

 ling the perianth-segments; crests obscure, broad and low. 



Open places in coniferous forests. Transition Zone; northern 

 Sierra Nevada in Placer and Sierra Counties. Type locality: 

 Sierra County, California. 



