184 Crassulaceae 



1. SEDUM L. 



Fleshy mostly glabrous erect or decumbent herbs 

 with mostly alternate entire or dentate leaves and per- 

 fect flowers in terminal often 1-sided cymes. Calyx 

 4-5-lobed. Petals 4-5, distinct. Stamens 8-10, perigy- 

 nous, the alternate ones usually attached to the petals, 

 their filaments filiform or subulate. Scales of the recep- 

 tacle entire or emarginate. Carpels distinct or united 

 at the base ; styles short. 



1. S. obtusatum Gray. Glaucous and often mealy, from a 

 branched rooting caudex, 10-15 cm. high, simple; leaves very 

 thick, obovate or spatulate, flat, 15-20 mm. long ; cymes of rather 

 numerous scattered branches; pedicels 2-4 mm. long; petals 

 oblong-lanceolate or obovate, acute, pale yellow, 6-8 mm. long, 

 little exceeding the stamens and style ; calyx broadly campanu- 

 late, sepals 3-4 mm. long, broad, obtuseish. 



Mount Disappointment, Davidson, 



2. S. spathulifolium Hook. Similar in habit to the last, but 

 the cyme approximate; pedicels shorter or the flowers sessile; 

 sepals 3 mm. long, ovate, acute; petals yellow, lanceolate, acute, 

 6-8 mm. long, scarcely exceeding the stamens and style. 



Lytle Creek Canyon near the falls. 



2. HASSEANTHUS Rose. 



Stems several, arising from small globose or oblong 

 corms. Basal leaves linear, terete, narrowed below into 

 flattened petioles ; stem-leaves narrowly ovate, turgid 

 but somewhat flattened. Calyx 5-lobed. Corolla-seg- 

 ments united at base into a short tube, yellow or 

 white changing to purple. Carpels 5, united at base, 

 widely spreading. 



1. H. elongatus Rose. Stems slender, 10-15 dm. high ; leaves 

 linear, elongated, not at all variegated ; cyme branches simple, 

 widely spreading, 2-4 cm. long; calyx-lobes oblong; corolla 

 bright yellow. 



Described from specimens collected in the San Joaquin Hills by the 

 author. What seems to be the same has also been collected in the Santa 

 Ana Mountains by Helen D. Geis. 



