LILY FAMILY 



385 



10. Allium macrum S. ^^"ats. Rock Onion. Fig. 938. 



AUinm macnnn S. Wats. Proc. Am. Acad. 14: 2i5. 1S79. 



Bulb ovoid, about 15 mm. long, the coats without 

 definite reticulations. Scapes 2-5 cm. high, terete or 

 slightly angled ; leaves 2, much longer than the 

 scape, 2-3 mm. wide, slightly falcate ; bracts 2, ovate, 

 abruptly acute ; umbel spreading, many-flowered ; 

 pedicels slender, 5-10 mm. long ; perianth-segments 

 white or pale rose, veined with purple, 4-6 mm. 

 long, narrowly lanceolate, acuminate, scarcely longer 

 than the stamens and style ; filaments slightly dilated 

 below ; capsule-cells bordered above by a thick obtuse 

 ridge. 



Barren rbcky soil. Hudsonian Zone; Blue ^Mountains of 

 eastern Washington and Oregon. Type locality: Union 

 County, Oregon. 



11. Allium falcifolium Hook. & Arn. 



Scvthe-leaved Onion. 



Fig. 939. 



Allium falcifolium Hook. & Arn. Bot. Beechey 400. 1841. 



Bulbs ovoid, about 15 mm. long, the outer coats 

 reddish brown, without reticulations. Scape 5-10 cm. 

 high, flattened and distinctly 2-edged, 2.5-5 mm. wide ; 

 leaves 2, flat and falcate, thick, much longer than the 

 scape, 6-8 mm. wide ; bracts 2, ovate-lanceolate, acumi- 

 nate, 18-20 mm. long, 12-14-nerved ; umbels rather 

 crowded, 10-30-flowered ; pedicels 6-12 mm. long; peri- 

 anth deep rose, 10-14 mm. long, the segments narrowly 

 lanceolate, attenuate and spreading above, minutely 

 glandular-serrulate ; stamens scarcely over half the 

 length of the perianth-segments ; stigma entire; capsule 

 acute, with 3 central narrow entire crests. 



Usually on serpentine outcrops. Upper .Sonoran and Transition 

 Zones; Coast Ranges from the Siskiyou Mountains, Oregon to 

 Sonoma County, California. Type locality: California. 



12. Allium breweri S. A\ ats. 

 Brewer's Onion. Fig. 940. 



Allium breu-eri S. Wats. Proc. Am. Acad. 14: 233. 1S79. 



Allium falcifolium breweri M. E. Jones, Contr. West. Bot. 

 10: S3. 1902. 



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

 without reticulations, light brown, the inner reddish. 

 Scape 6-8 mm. long, usually only 25-35 mm. above 

 the ground, flattened and 2-winged ; leaves 2, basal, 

 flat, thick, much exceeding the scape, 4-7 mm. wide, 

 falcate ; umbles densely flowered ; pedicels stout, 15 

 mm. long; perianth-segments deep rose-purple, 

 oblong-lanceolate, obtuse or acutish, becoming 

 acuminate in age, entire or sometimes minutely 

 glandular-serrate, 10-12 mm. long; stamens two- 

 thirds the length of the segments; capsule with 3 

 broadly triangular, sometimes lobed apical crests. 



Heavy or rocky soil, usually of basalt or serpentine origin, 

 Upper Sonoran Zone; Coast Ranges of central California. 

 Type locality: summit of Mount Diablo. 



