74 



DESCRIPTIONS OF THE SHRUBS 



B. Petals 4 ; racemes short on the sides of last year's branches in 

 early spring. April and May. (C.) 

 C. Petals spreading and wilting, persistent. African Tamarisk 

 (36) — Tamarix parvifl6ra. 



C. Petals erect and dropping off. Pour-anthered Tamarisk — 

 Tamarix tetrd,ndra. 



B. Petals 5. (D.; 



D. Leaves pubescent, bluish green ; flowers with deciduous petals 

 nearly sessile in racemes 2-3 inches long. Pubescent-leaved 

 Tamarisk — Tamarix hispida. 



D. Leaves smooth. (E.) 

 E. Petals deciduous ; shrub or small tree with whitish or pinkish 

 flowers, May-July (in var. indica, Late-flowerino Tam- 

 arisk, Aug., Sept.). French Tamarisk (37) — Tamarix 

 gdllica. 

 E. Petals persistent, wilting. (F.) 

 F. Racemes about 2 inches long on old branches. Japan 



Tamarisk — Tamarix juniperina. 

 F. Plowers in terminal compound clusters. (G.) 



G. Shrub or small tree with spreading or drooping branches. 



Chinese Tamarisk— Tamarix chinfinsis. 

 G. Shrub 4-6 feet high with upright branches. Caspian 

 Tamarisk — Tamarix odessana. 



Ascyrum. St. Andrew's CrosS 

 and St. Peter' s-wort are pretty 

 yellow-flowered, slightly shrubby, 

 summer-flowering plants sometimes 

 cultivated in borders. They can be 

 known by the calyx of 4 pieces (2 

 large and 2 small), 4 cross-like 

 broadly spreading petals and many 

 stamens. The leaves are opposite 

 with entire edges. St. Peter's- 

 woRT (38) — Ascyrum st^ns — is the 

 taller growing, 2-3 feet, vrith larger 

 flowers, thicker leaves, and 3 or 4 

 styles. St. Andrew's Cross (39) — 

 Ascyrum hypericoides — is more 

 spreading with lighter colored smaller 

 flowers and 2 styles. The fruit is a 

 dry 1-oelled many-seeded pod. 



[Divisions ; seeds.] 



Fig. 38. — St. Peter's-Wort. 



