42 Flora of the Palousc Region 



perianth-segments and free from them, short, mostly curved: ovary 

 ovoid, 3-celled, the cavities several ovuled. 



Flowers green : lower branches of the panicle drooping. V. viride. 

 Flowers white: branches of the panicle not drooping. V. caijfornicum. 



V. viride Ait. Stems stout, 1-1.5 tn. tall: leaves ovate, or the upper lan- 

 ceolate, pubescent beneath, 20-30 cm. long: panicle open, 30-60 cm. long, 

 the lower branches more or less drooping, usually simple: perianth green, 

 pubescent outside, the segments obovate, obtuse, about 8 mm. long: prin- 

 cipal bracts foliaceous, like the upper leaves. Deep woods, Cedar Mountain. 



V. califomicum Durand. Very similar to the preceding, but flowers 

 white, and the branches of the panicle not drooping, usually again branched: 

 principal bracts not foliaceous, small. Common in moist meadows. 



63. ALLIUM. 



Bulbous herbs, with the characteristic odor of the onion, the 

 bulbs solitary or clustered on short rootstocks: stem usually a 

 scape, simple, erect: leaves narrowly linear, or rarely lanceolate or 

 oblong, sheathing, basal, or sometimes also on the stem: inflores- 

 cence a terminal simple umbel, in the axils of 2 or 3 membranous, 

 separate or united bracts; pedicels slender, not jointed: flowers 

 white, purple, pink or green: perianth-segments 6, separate or 

 united by their very bases: stamens 6, on the bases of the perianth- 

 segments: ovary sessile or nearly so, completely or incompletely 

 5-celled; ovules 1-6 in each cavity. 



Leaves 2, broad: flowers dark red. A. dougi<asii. 

 Leaves 2-several, narrow: flowers pink. 



Bulb-coats fibrous. A. GEYERi. 



Bulb-coats reticulated. A. acuminatum. 



A. douglasii Hook. Stems stout, 15-25 cm. tall: bulb ovate, 2 cm. long, 

 the coats not reticulated: leaves two, 10-20 cm. long, about 1 cm. wide, flat: 

 flowers very numerousin a dense globose umbel, dark red: bracts 2, large: peri- 

 anth segments broadly lanceolate, acuminate, 7 mm. long: pedicels 1.5-2 cm. 

 long: ovary not crested. In gravelly springy places, rare. 



A. gey eri Watson. Stems slender, 15-30 cm. tall: bulbs elongate, the 

 coats fibrous: leaves 2-4, slender, blunt, 10-20 cm. long: flowers pale rose- 

 color: bracts broad: perianth segments ovate, acute or acuminate: ovary 

 crested. Low meadows, not common. 



A. acuminatum Hook. Stems 10-20 cm. tall: bulbs globose, the outer 

 coats finely reticulate: leaves terete, narrow, shorter than the stem: flowers 

 many, pink, on pedicels 2-3 cm. long: perianth segments ovate, acuminate, 

 10-12 mm. long: ovary only obscurely crested. Rocky soil, abundant. 



var. CUSpidatum Fernald. Perianth segments smaller, 7-8 mm. long, 

 abruptly cuspidate. Near Wawawai. 



64. BRODIAKA. 



Usually erect scapose herbs from a membranous-coated corm: 



