382 



LILIACEAE 



1. Allium sibiricum L. Wild Chives. Fig. 929. 



Allium sibiricum L. Maiit. 2: 562. 1771. 



Bulbs narrowly ovoid, clustered, 25 mm. long 

 or less, their coats membranous, usually white, 

 without reticulations. Scape rather stout, 2-6 

 dm. high, bearing below the middle 1 or 2 

 elongated linear terete hollow leaves 1-2 mm. 

 in diameter, or the leaves all basal; bracts 2, 

 ovate, acute, veiny ; umbel many-flowered, capi- 

 tate, the pedicels 2-6 mm. long; perianth-seg- 

 ments 8-12 mm. long, lanceolate, acuminate, pale 

 rose-color ; stamens about half as long as the 

 perianth ; filaments subulate ; ovules 2 in each 

 cavity ; capsule obtusely 3-lobed, half as long as 

 the perianth. 



In moist soil, Arid Transition Zone; Alaska to New- 

 foundland, New York, Wyoming and Oregon. In the 

 Pacific States it is found in Oregon and Washington, east 

 of the Cascade Mountains. Type locality: Siberia. 



2. Allium cernuum Roth. 

 Nodding Onion. Fig. 930. 



Allium cernuum Roth; Roem. Arch. P: 40. 1789. 

 Allium recurvatum Rydb. Mem. N. Y. Bot. Card. I: 94. 1900. 

 Bulbs narrowly ovoid with a long neck, 3-6 cm. 

 long, usually clustered on a short rootstock, the 

 coats membranous without distinct reticulations. 

 Scape slender, slightly rigid, 3-6 dm. high ; leaves 

 linear, channelled or nearly flat, 2-4 mm. wide, mostly 

 shorter than the scape ; bracts 2, short, deciduous ; 

 umbel many-flowered, nodding in flower ; pedicels 

 filiform 15-30 mm. long; flowers white or rose, 

 campanulate ; perianth-segments ovate-oblong, acute 

 or obtusish, 4-6 mm. long; stamens longer than the 

 perianth ; filaments nearly filiform ; ovules 2 in 

 each cavity ; capsule 3-lobed, each valve bearing 2 

 short processes near the summit. 



On rocky slopes and dry hillsides, Transition Zone; British 

 Columbia to northern Oregon, and in the Rocky Moimtains to 

 Arizona, east to New York and Virginia. Type locality: not 

 indicated. 



3. Allium validum S. A\ ats. 

 Swamp Onion. Fig. 931. 



AUi\nn validum S. Wats. Bot. King Expl. o50. 1871. 



Bulb oblong-ovoid, 3-5 cm. long, solitary or 

 clustered, arising obliquely from a horizontal 

 rootstock, the membranous coats white or some- 

 times tinged with red, marked with fine vertical 

 reticulations. Scape 5-7 dm. high, rather 

 stout, slightly compressed and 2-edged; leaves 

 several, flat or slightly carinate, nearly equalling 

 the scape, 5-15 mm. wide; bracts 2^, united 

 at the base, acute or short acuminate ; umbels 

 many-flowered, rather dense, the pedicels 10- 

 15 mm. long; perianth-segments rose to nearly 

 wliite, lanceolate, narrowly acuminate. 6-8 mm. 

 long ; stamens about equalling or usually longer 

 than the perianth ; filaments subulate ; style 7-8 

 mm. long ; capsule subglobose, 5 mm. long, not 

 crested. 



Alpine meadows of the Pacific region-, Canadian and 

 Iludsonian Zones; Mount Rainier to the southern Sierra 

 Nevada and in the Coast Ranges to Lake County, Cali- 

 fornia, also western Nevada. Type locality: Mono Pass, 

 California. 



