CEPHALANTHUS 187 



Florida to Mexico, north to Nova Scotia, Ontario, Oklahoma, and 

 California; also in the West Indies (Fig. 292 ). 



DIERVILLA Duhani. (Caprifoliaceae) 



Deciduous shrubs. Twigs terete, moderate, straw-colored 

 or brownish; pith pale, continuous, moderate. Buds solitary or 

 superposed, sessile, oblong, appressed. Leaf-scars opposite or 

 occasionally whorled, triangular, moderate, connected by lines; 

 bundle-traces 3; stipule-traces none. Capsules linear, persisting 

 in winter. 



1. p. lonicera Mill. Bush Honeysuckle . Upright soft-wooded 

 shrub 1 m. or less high; bark grayish-brown; twigs with two ridges 

 decurrent from the nodes, glabrous except for the ridges; capsule 

 glabrous, 8 mm. long, beaked. Dry rocky places, Newfoundland 

 to Manitoba, south to North Carolina, Indiana, and Iowa (Fig, 293 ). 



LONICERA L. (Caprifoliaceae) 



Deciduous or partly evergreen shrubs or woody climbers. 

 Twigs rounded, slender; pith moderate, continuous, or excavated 

 between the nodes. Buds solitary or superposed, sessile. Leaf- 

 scars opposite, crescent-shaped, small, on the narrowed tips of 

 leaf-bases, more or less connected by lines; bundle-traces 3; 

 stipule -scars none. 



a. Erect shrubs; buds often superposed 



b. Pith brown, excavated between 



the nodes 1. L. tatarica 



b. Pith white, continuous 2. L. canadensis 



a. Twining or loosely ascending shrubs 



b. Stems red -brown, hairy, nearly 



evergreen 3, L. japonica 



b. Stems gray or straw-colored 



c. More or less evergreen, at 



least southwards 4. L. sempervirens 



c. Deciduous 5. L. dioica 



1. L_. tatarica L. Tartarian Honeysuckle . Erect smooth 

 shrub 1. 5-3 m. high; branches slender, glabrous; pith brown, ex- 

 cavated between the nodes; buds glabrous, oblong or ovoid, the 

 scales short-pointed. Introduced from Eurasia, frequently escap- 



