LILY FAMILY 271 



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



1. Plants with rootstoclcs and hulhs. 



Bootstoek ero-vvned by the bulb, more or less persistent; bulb uarrowly oblong or elongated 

 ovoid, heavily sheatlied witli the bases of several leaves. 

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



broad 1. A. validum. 



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



2. A. haematochitoii. 



Eootstock slender, horizontal, bearing terminally one or few corms and giving rise to an erect 



scape; corm short-ovoid or round 3. A. unifolhim. 



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

 Bulb-coats with indistinct reticulation or none. 



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



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



Scapes 2 to 8 inches high ; bulbs rcddish-bro"\vn ; 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. aiiserinum. 



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. sanbomiL 



Scapes Vi to 2iA 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. 



Reticulation 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 Ya inch long; interior 



17. A. serratu/m. 



Perianth rose-purple; pedicels unequal, '4 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 lli inches long 19. A. peninsulare. 



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

 Reticulation of bulb-coats coarse quadrate to hexagonal. 



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



% to 1 inch long _ 21. A, acuminatum. 



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

 inch long _ 22. A. lac^mosum. 



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 exsertcd ; ovary not crested ; bulb-coats without reticulation ; 

 northern Sierra Nevada 23. A. platycaule. 



