CRASSTTLACEAE 45 



rounded twigs; continuous roundish pith; alternate low cres- 

 cent-shaped small leaf-scars with 3 bundle-traces; no stipule 

 scars; rounded few-scaled buds often developing the first sea- 

 son; petioled entire or varyingly lobed moderate mucilaginous 

 leaves; small yellowish dioecious apetalous flowers clustered 

 in the axils; and blue drupes in red cup-like bases. 

 Leaves and young twigs pubescent. S. variifolium 



Soon glabrate: twigs often glaucous. S. variifolium albidum. 



ClNNAMOMUM. 



Small aromatic evergreen trees with subterete twigs; 

 white homogeneous pith; opposite (or alternate and 4-ranked) 

 naked or scaly buds, ovate entire petioled leaves; somewhat 

 raised half-round leaf-scars with a C-shaped bundle-trace; no 

 stipule-scars; small perfect flowers; and small fleshy fruits. 

 Leaves alternate. (Camphor). C. Camphora. 



Leaves opposite. (Cinnamon). C. zeylanicum. 



Family CRASSULACEAE. Stonecrop Family. 

 A rather small family of succulent herbs, used in rockeries. 



SEDUM. 'Stonecrop. 



Perennial herbs with simple fleshy leaves alternate or 

 crowded in whorls; no stipules; small usually perfect poly- 

 petalous flowers; and several small follicles from each flower, 



1. Leaves scarcely broader than thick. 2. 

 Leaves distinctly flattened. 3. 



2. Leaves short, overlapping: flowers yellow. S. acre. 

 Leaves elongated, spaced. S. pulchellum. 



3. Leaves at least partly in whorls of three. 4. 

 Leaves not whorled. 5. 



4. Leaves entire, some in rosettes. S. ternatum. 

 Leaves crenate, not in rosettes. S. Sieboldii. 



5. Low: some leaves in rosettes: flowers white. S. Nevii. 

 Erect: without rosettes: flowers purplish. S. purpureum. 



Family SAXIFRAGACEAE. Saxifrage Family. 

 A moderate-sized family including many perennial herbs 



