LILIACEAE (LILY FAMILY) 57 



DD, Ovary obscurely crested or ridged. 

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

 ^- A. coUinum 



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

 10 mm. long. E. A. tolmlel 



CC. Perianth ij 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. simllllmum 



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. madldum 



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 



n. 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 ij 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. bolanderl 

 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. douglasli 



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

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



ODD. 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. nevil 

 PP. Umbels many-flowered. 

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

 or rose color. C. E. A. attenuifollum 



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 



