SHRUBS xxvii 



97. Leaves crowded at end of stem. p. 120. Enkianthus. 

 Leaves scattered. 98. 



98. Leaves very veiny.. p. 123. Vaccinium. 

 Leaves not very veiny. 99. 



99. Leaves acute at both ends. p. 126. Styrax. 

 Leaves rounded at both ends. p. 81. Andrachne. 



100. Fruit star-shaped: bundle-traces 3. p. 63. Exochorda. 

 Fruit not star-shaped: bundle-trace one. 101. 



101. Fruit dry: twigs fluted. p. 81. Securinega. 

 Fruit fleshy: twigs not fluted. 102. 



102. Fruit drupe-like, long-stalked. p. 87. Nemopanthus. 

 Fruit berry-like. p. 123. Vaccinium. 



Toothed. 



103. Leaves or twigs with resin-glands or blisters. 104. 

 Without resin-glands. 105. 



104. Not aromatic: pith 3-sided. p. 25. Betula. 

 , Aromatic; fruit waxy. p. 20. Myrica. 



105. Leaves palmately nerved or triple-nerved. 106. 

 Leaves pinnately veined. 110. 



106. Pith chambered, at least in plaoes. p. 34. Celtis. 

 Pith continuous. 107. 



107. Rather soft-wooded and tender. 108. 



Fully lignified. p. 100. Vitis. 



108. Leaves somewhat fleshy. p. 147. Baccharis. 

 Leaves not fleshy. 109. 



109. Leaves narrow and small. p. 54. Spiraea. 

 Leaves ovate or elliptic, larger. p. 97. Ceanothus. 



110. Buds stalked or developing the first year. 111. 

 Buds neither stalked nor developing at once. 117. 



111. Leaves 2-ranked. 112. 



Leaves inserted in more than 2 ranks. 115. 



112. Leaves ovate. 113. 



Leaves coarsely crenate. 114. 



113. Leaves finely serrate. p. 106. Stachyurus. 

 Leaves coarsely dentate-serrate. p. 63. Kerria. 



