STONECROP FAMILY 189 



CLEMENTSIA Rose 1903 



(Sedum Linne) 



PI. 30, fig. 1. 



Sepals 4-5, united, petals 4-5, rose to nearly white, separate, stamens 

 8-10, pistils 4-5, separate or united at the base ; flowers perfect, axillary in 

 dense racemes, forming a head or spike-like cluster; leaves more or less 

 crowded, fleshy, usually toothed; perennial. 

 Stems 4-18 in., high; leaves oblong to oblanceolate, 

 entire or toothed, 1-4 cm. long; petals lanceolate, 8- 

 15 mm. long C. rhoddntha 



RHODIOLA Linne 1753 KING'S CROWN 



(Gr. rhodon, rose, perhaps from the rose-like odor of the root) 



(Sedum Linne) 

 PL 30, fig. 3. 



Sepals 4-5, united, petals 4-5, red-purple, separate, stamens 8-10, pistils 

 4-5, separate or united at the base; flowers polygamous or dioecious in a 

 compound cyme, the latter dense and head-like; leaves crowded, fleshy, 

 flat, entire or toothed; perennial. 

 Stems 1-25 cm. high ; leaves obovate to oblong, entire 

 or dentate, .5-2.5 cm. long ; flowers 4-8 mm. wide R. rdsea 



SEDUM Linne 1753 STONECROP 



(Lat. sedeo, sit, from growing on walls and rocks) 



PL 30, fig. 8. 



Sepals 4-5, united, petals 4-5, yellow, separate, stamens 8-10, alternate 

 ones usually attached to the petals, pistils 4-5, distinct or united at the 

 base; flowers perfect as a rule, in terminal, usually 1-sided cymes; leaves 

 alternate, often crowded, fleshy, entire or toothed; annual or perennial. 



1. Leaves linear-cylindric ; petals distinct 



a. Leaves flat above ; stems branched at base, 5-12 



in. high S. Dougldsii 



b. Leaves round above; stems simple, tufted, 1- 



8 in. high S. stenopetalum 



2. Leaves elliptic to obovate ; petals united at base S. debilis 



TILLEASTRUM Britton 1903 

 (Named from its resemblance to Tillaea) 

 Sepals 3-5, united, petals 3-5, greenish, separate or united, stamens 



