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which are parasitic plants without chloro- 

 phyll. 



Family 1. ARISTOLOCHIE^. 



Perigonium gamosepalous. Stamens 6, or a 

 multiple. Ovary inferior, G-celled. 



1. Asarum Tourn. Wild Ginger. 



Stamens 12, free. Perigonium entirely 

 epigynous; limb regular. Rhizome dichoto- 

 mous. — U- 



1. A. CAUDATUM Lindl. Flower dark -pur- 

 ple. — Strawberry Yalley. Tamalpais. Spring. 

 2. Aristolochia Toum. Dutchman's Pipe. 



Stamens 6, gynandrous. Limb of perigonium 

 oblique, irregularly cleft. 



1. A. Californica Torr. Flowers greenish; 

 twining creeper. — U- Saucelito. Ocean lake. 

 Ross Station. Spring. 



Series 5. JULIFLOR^E. Inflorescence 

 dense; flowers apetalous. Leaves never com- 

 pound. 



Order 1. Flowers diclinous; S flowers 

 amentaceous. Fruit 1- seeded, indehiscent. 

 Stipules deciduous. 



Family 1. CUPULIFERiE. 



Epigynous. Style 1; stigmas several. Fruit 

 a nut (akene), the base of which is surrounded 

 by a cupula or a persistent involucre. 



