82 Liliaceae 



terete, 10-25 mm. thick, spreading; heads 1-20, exceeded by the 

 lowest bract, each 10-16 mm. in diameter; perianth 5-7 mm. 

 long, the segments subulate; stamens 6; capsule subulate, 3- 

 sided, exceeding the perianth. (/. nodosus megacephalus Torr.) 

 Occasional along streams. Los Angeles River, Davidson. 



9. J. phaeocephalus Engelm. Stems from a creeping root- 

 stock, ancipital, 3-7 dm. high; leafy; leaves flat 2-6 mm. wide, 

 often exceeding the stems; flowers in a single or few many- 

 flowered heads; perianth segments brownish, 3-4 mm. long, 

 lanceolate acuminate ; stamens 6 ; anthers usually exceeding the 

 filaments ; style long exserted ; capsule acute ; seeds ovate, close- 

 ly reticulated. 



Frequent along streams and in low brackish places. May-July. 



10. J. phaeocephalus paniculatus Engelm. A more robust 

 form of the last; heads several in a compound panicle, rather few- 

 flowered. 



With the last or in similar places. 



Family 10. LJ1JACEAE. LILY FAMILY. 



Scapose or leafy-stemmed herbs from bulbs or corymbs 

 or rarely with rootstocks or a woody caudex. Leaves 

 various. Flowers solitary or clustered, regular, mostly 

 perfect. Perianth segments 6, distinct. Stamens 6, 

 hypogynous or borne on the perianth or at the base of 

 its segments ; anthers 2-celled, mostly introrse. Ovary 

 superior, 3-celled. Ovules few or numerous, in each 

 cavity ; styles united ; stigma 3-lobed. Fruit a loculi- 

 cidal capsule ; endosperm copious. 



* Fruit a capsule. 

 Herbs with bulbs or conns. 

 Flowers not umbellate. 



Stems from a tunicated bulb. 



Styles 3, distinct. 1. ZYGADENUS. 



Styles united, more or less 3-clef t. 2. CHLOROGALUM. 



Stems from a scaly bulb. 



Perianth very showy, its segments reflexed. 9. LILIUM. 

 Perianth segments not reflexed. 10. FRITILLARIA. 



Stems from a corm ; flowers showy. 11. CALOCHORTUS. 



