Crassulaceae 183 



Stamens 3-10. Ovary 4-angled, 4-beaked. Capsule 

 4-sulcate, many-seeded, opening at the summit. 



1. O. glaucescens Camb. Annual or biennial; 15-30 cm. 

 high, branching at base, the branches ascending; leaves often 

 fascicled and somewhat fleshy, 1-2 cm. long; spikes elongated 

 terminal, the stem-like branches bracteate, densely flowered; 

 petals oblong, obscurely lobed, posterior; stamens 3, posterior; 

 capsule depressed globose, 3 mm. in diameter, 4-lobed, 4-cuspi- 

 date ; seeds smooth . 



In low saline places. Portugese Bend; Elsinore; also at San Diego and 

 Tia Juana. April-May. 



Family 38. CRASSULACEAE. STONE-CROP FAMILY. 



Mostly succulent or fleshy herbs with cymose or rarely 

 solitary, regular or symmetrical flowers. Stipules none. 

 Calyx persistent, free from the ovary or ovaries, 4 5-cleft 

 or 4-5-parted. Petals equal in number to the calyx- 

 lobes, distinct or somewhat united below, persistent. 

 Stamens of the same number or twice as many with fili- 

 form or subulate filaments and longitudinally dehiscent 

 anthers. Receptacle with a scale at the base of each 

 carpel. Carpels eqUal to the calyx-lobes in number, 

 distinct or united below, with subulate or filiform styles 

 and numerous ovules. Follicles membranous or coria- 

 ceous, 1-celled, dehiscent along the ventral suture. Seeds 

 minute ; embryo terete, imbedded in fleshy endosperm. 

 The descriptions of most of the species and genera are 

 adopted from Britton and Rose's recent article, " New or 

 Noteworthy North American Crassulaceae," Bui. N. Y. 

 Bot. Gard. 3:1-45. 1903. 



Plants not minute. 



Petals spreading, distinct at base; leaves not linear. 1. SEDUM. 

 Petals spreading, yellow, slightly united at base; leaves linear; peren- 

 nials by conns. 2. HASSEANTHUS. 

 Petals spreading, united at base; leaves narrow; perennials by root- 

 stocks. 3. STYLOPHYLLUM. 

 Petals erect, united at base; carpels erect. 4. DUDLEYA. 

 Plants minute, succulent. 5. TILLAEA. 



