LILIACEAE (LILY FAMILY) 57 



DD. Ovary obscurely crested or ridged. 



E. Bulb coat reticulate; umbel nodding; flowers white; perianth 8 mm. long. 



E. A. collinum 



EE. Bulb coat not reticulate; umbel not nodding; flowers red or white; perianth 



10 mm. long. E. A. tolmiei 



CC. Perianth 15 times as long as the stamens or shorter; bulb coat reticulate in 



some species. 

 F. Leaves longer than the scape; perianth segments acute or obtuse, not apicu- 



late; bulb ovoid. 

 G. Spathe of 2 bracts. 



H. Leaves about 4 mm. wide; bracts of the spathe acuminate; pedicels 8-16 



mm. long; perianth segments acute, entire. E. A. watsoni 



HH. Leaves less than 2 mm. wide; bracts of the spathe acute; pedicels 2-4 mm. 



long; perianth segments obtuse, delicately denticulate. E. A. simillimum 



GG. Spathe of 3 bracts. U. A. tribracteatum 



FF. Leaves shorter than the scape; perianth segments acute or apiculate. 



I. Perianth segments entire, not cuspidate. 



J. Bulb ovoid; bulb coat not fibrous; scape 1-2 dm. high; bracts of the spathe 

 8-10 mm. long, acute. E. A. madidum 



JJ. Bulb oblong; bulb coat fibrous; scape 2.5-3.3 dm. high; bracts of the 

 spathe 12-21 mm. long, acuminate, C. E. A. geyeri 



II. Inner perianth segments serrulate, abruptly cuspidate. (See M.) 

 AA. Perianth segments acuminate. 



K. Scape terete or nearly so. 

 L. Inner perianth segments serrulate. 



M. Perianth segments i the stamen-length or less, their tips recurved. W. C. E. 



A. acuminatum 

 MM. Perianth segments twice the stamen-length, almost straight. U. E. 



A. bolanderi 



LL. Perianth segments entire. 

 N. Ovary not crested; bulb coat not reticulate. 



O. Flowers dark red; scape 17-37 cm. high; bulb ovate. E. A. douglasii 



OO. Flowers rose color; scape 30-60 cm. high; bulb oblong. E. Grown in 

 gardens for the edible tops. A. schoenoprasum (CHIVES) 



OOO. Flowers white to pinkish; scape 2.5-10 cm. high; bulb ovate. E. 



A. macrum 



NN. Ovary crested; bulb coat reticulate in some species. 



P. Umbels few-flowered; bulb coat obscurely or not at all reticulate; scape 7.5- 

 20 cm. high; bracts of spathe acuminate; flowers white or rose color. E. 



A. nevii 



PP. Umbels many-flowered. 



Q. Bracts of the spathe abruptly acute; scape 15-50 cm. long; flowers white 

 or rose color. C. E. A. attenuifolium 



QQ. Bracts of the spathe acuminate. 



R. Scape 10-30 cm. long; flowers pink or crimson; bulb coat reticulate. E. 



A. serratum 

 RR. Scape 25-63 cm. long; flowers white or rose color; bulb coat fibrous. 



(See JJ.) 



KK. Scape flattened, somewhat 2-edged (somewhat 3-angled below in A. vali- 

 dum). 



S. Scape 30-75 cm. long, longer than the leaves; stamens exserted. C. A. validum 

 SS. Scape 5-15 cm. long, as long or shorter than the leaves; stamens included. 

 T. Perianth segments 15-17 mm. long, serrulate. U. A. falcifolium 



TT. Perianth segments 6-12 mm. long, entire. 

 U- Perianth segments very little longer than the stamens. E. A. anceps 



