108 KEY AND FLORA 



the stem. Stamens very numerous, in 3 sets. Corollas nearly an 

 inch in diameter. This grows on dry hills in central California. 



c. H. ? anagalloi'des Cham. & Schl. Stems weak, low, spreading, 

 rooting at the joints, growing in wet places and forming mats. Leaves 

 small, clasping. Flowers small, in cymes. Pod 1-celled. Widely 

 distributed. 



FRANKENIA'CE^, YERBA REUMA FAMILY 



Low, spreading, perennial herbs or shrubs, with opposite, 

 entire leaves and no stipules. Calyx tubular, 4 or 5 lobed, 

 ribbed. Petals with long claws inserted on the receptacle. 

 Stamens 4-7. Ovary 1-celled. Fruit a 2-4-valved pod 

 included in the calyx tube. 



a. Franke'nia grandiflo'ra Cham. & Schl. YERBA REUMA. Stems 

 very numerous, slender. Leaves numerous, small and narrow, with 

 the margins rolled under. Petals small, pink. On account of the 

 great amount of salt contained in this plant it is almost impossible 

 to dry it. It is common in salt marshes on the coast. 



b. F. grandiflo'ra var. campes'tris. This is the form found in the 

 interior alkaline marshes. 



CISTA'CE^, ROCKROSE FAMILY 



Calyx in 2 series ; the outer sepals 2, smaller than the 3 

 inner, turned to the left in the bud, while the 5 petals are 

 turned to the right. Stamens many, style 1. Fruit a cap- 

 sule, with the parietal placentae protruding towards the center. 



HELIAN'THEMUM, Rockrose 



Perennials, with many slender steins about a foot high 

 from a woody root. Flowers small, yellow, open only in sun- 

 shine, with petals soon falling. Ovary opening into 3 valves. 



H. scopa'rium Nutt. This grows on dry hills throughout Cali- 

 fornia, in the Coast Mountains. 



