LILY FAMILY 271 



A. Scape terete; leaves 1 to several, linear, filiform or terete. 

 1. Plants with rootstoclcs and bulbs. 



Eootstock crowned by the bulb, more or less persistent; bulb narrowly oblong or elongated 



ovoid, heavily sheathed with the bases of several leaves. 

 Scapes 1% to 3 feet high; bulbs white or light-colored, narrowly oblong, % to 1^4 inches 



broad 1. A. validum. 



Scapes 8 to 12 inches high ; bulbs generally deep red, elongated ovoid, % to % inch broad. 



2. A. haematochiton. 



Rootstock slender, horizontal, bearing terminally one or few conns and giving rise to an erect 

 scape; conn short-ovoid or round 3. A. unifolium. 



2. Plants without rootstoclcs; bulb ovoid or globose; leaves deciduous above outer bulb-coats. 

 Bulb-coats with indistinct reticulatibn or none. 



Leaves terete or sub-terete, solid; ovary crests conspicuous. 



Scapes 12 to 20 inches high; bulbs pinkish; leaves 1 or 2 4. A. intactum. 



Scapes 2 to 8 inches high; bulbs reddish-brown; leaf solitary. 

 Leaves not coiled at tip; Southern California. 



Perianth-segments lanceolate-attenuate; ovary crests emarginate 5. A. parryi. 



Perianth-segments ovate-lanceolate; ovary crests more or less fimbriate. 



Scapes mostly slender; perianth-segments 3 to 5 lines long, usually recurved 



at tip, sometimes spreading; mostly of the desert slopes 



6. A. fimbriatum. 

 Scapes stout; perianth-segments closely erect, straight at tip, 6 to 7 lines 



long; high San Gabriel Mts 7. A. peirsonii. 



Leaves coiled at tip; east side of the Sierra Nevada 8. A. atrorubens. 



Leaves plane. 



Scapes 4 to 15 inches high; ovary crests conspicuous; perianth-segments broadly ovate 

 to lanceolate. 



Flowers 5 to 6 lines long; ovary crests twice as long as the ovary 9. A. anserinum. 



Flowers 3 to 4 lines long; ovary crests shorter than the ovary. 

 Perianth-segments acuminate, rose-color. 



Scapes solitary _ 10. A. campanulatum. 



Scapes commonly in pairs 11. A. bisceptrum. 



Perianth-segments acute, pinkish to white 12. A. sanbornii. 



Scapes y to 2% inches high; ovary crests evident to obscure; perianth-segments 

 lanceolate to oblong, obtuse to acuminate. 



Stamens shorter than the perianth; Sierra Nevada 13. A. tribracteatum. 



Stamens equaling or exceeding the perianth; Southern California 14. A. burlewii. 



Bulb-coats with distinct reticulation. 



Eeticulation of bulb-coats undulate-horizontal. 



Leaves 2; bulbs gray; ovary without crests 15. A. hyalinum. 



Leaves several; bulbs deep red; ovary broadly crested .....16. A. amplectens. 



Eeticulation of bulb-coats close, strongly serrate-horizontal. 

 Ovary crests minute, central. 



Outer perianth-segments only slightly wider than the inner. 



Perianth commonly pink; pedicels equal, % to % inch long; interior 



17. A. serratum. 



Perianth rose-purple; pedicels unequal, % to % inch long; maritime 



18. A. dichlamydeum. 

 Outer perianth-segments twice as wide as the inner and slightly longer; perianth 



rose-purple; pedicels unequal, % to 1% inches long 19. A. peninsulare. 



Ovary crests broad, rounded; perianth-segments glandular-denticulate....20l A. bolanderi. 

 Eeticulation of bulb-coats coarse quadrate to hexagonal. 



Perianth-segments deep rose-color, acuminate, the margins undulate-serrulate; pedicels 



y 2 to 1 inch long - _... 21. A. acuminatum. 



Perianth-segments pinkish to rose-color, acute, the margins entire; pedicels % to % 

 inch long - 22. A. lacunosum. 



B. Scape much flattened and 2-edged or narrowly winged; leaves usually 2, broadly linear 



or falcate. 



Perianth-segments narrowly lanceolate, long acuminate, or becoming filiform-subulate; stamens 

 nearly equaling segments or exserted ; ovary not crested ; bulb-coats without reticulation ; 

 northern Sierra Nevada 23. A. platycaule. 



