xx 
129. 
130. 
131. 
132. 
133. 
134. 
135. 
136. 
137. 
138. 
139. 
140. 
141. 
142. 
143. 
144. 
145. 
KEYS—LEAVES ALTERNATE 
Leaf-sears triangular. p. 236. Ascyrum. 
Leaf-scars angularly lens-shaped. p. 237. Hypericum. 
Twigs rather sharply 4-ridged. 131. 
Twigs at most angular or grooved below the nodes. 132. 
Leaf-scars ciliate or fringed at top. p. 309. Fontanesia. 
Leaf-scars not ciliate. p. 250. Punica. 
Leaf-scars relatively broad (3 mm.). 133. 
Leaf-scars minute (scarcely 2 mm.). 135. 
Buds superposed. 134. 
Buds not superposed. p. 313. Syringa. 
Bud-seales stiff-pointed. p. 317. Chionanthus. 
Bud-scales not pungent. p. 310. Fraxinus. 
Leaf-scars low. 136. 
Leaf-sears elevated. 137. 
Buds several, superposed, separated. p. 316. Forestiera. 
Buds collaterally multiplied. p. 182. Coriaria. 
Buds usually solitary: bark not shredding. p. 244. Daphne. 
Leaf-secars shriveled. p. 352. Symphoricarpos. 
Leaf-scars distinctly outlined. 138. 
Bushy. 139. 
With a tendency to climb. p. 320. Jasminum. 
With a stipular line. p. 343. Pinckneya. 
Without stipular vestiges. p. 319. Ligustrum. 
LEAVES ALTERNATE. 
Leaves represented by small scales, or by spines. 141. 
Ordinary leaves, or their scars, present. 150. 
Wood-strands seattered through the stem. p.7. Ruscus. 
Wood in a zone between pith and bark. 142. 
Leaves persistent in the form of scales. 143. 
Leaves or their axes persistent as spines. 146. 
Seales and buds minute: twigs spiny. p. 241. Koeberlinia. 
Seales and buds evident, though small: not spiny. 144. 
Percurrent. tree: twigs slender. p. 5. Taxodium. 
Openly branched small trees or shrubs. 145. 
Pith central in the branches. p. 238. Myricaria. 
Pith teward one side of the branches. p. 238. Tamarix. 
