LEAF INDEX. 



29 



SIMPLE-ALTERNATE-SERRATE or Toothed or Crenate (I). 

 Stems creeping, or trailing, or climbing. 



Round-oval or ovate, aromatic, teeth low and bristly, creeping. 



Climbing high, quite woody, finely serrate, unarmed. 



Climbing by stipules, stems greenish and bristly or prickly, 



veins curved, nearly entire. 



Stem covered with straight bristles, leaves 5 to 9-nerved. 

 Sterns with stout scattered prickles, leaves 5-nerved, 



southern. 



Branches thorny, base obtuse or cordate, trees or tall shrubs. 

 Not deeply notched, ovate, taper-pointed, thorns branch-like. 

 Deeply notched, nearly smooth, thorns smooth and pointed. 

 Deeply notched, pubescent beneath and on twigs and petioles. 

 Branches thorny, base acute or wedge-shaped. 



Deeply notched, pubescent beneath and on twigs and petioles. 

 Deeply notched, nearly smooth, thorns long, mostly > 2 in. 



Gaultheria 



procumbens 

 Celastrus scandens 



47a 

 15a 



86b 



Smilax hispida 



Smilax quadrangulata 86a 



Prunus Americana 24a 

 Cratcegus coccinea 29a 

 Cratcegus mollis 29d 



Cratcegus tomcntosa 29e 

 Cratcegus 



macracantha 29b 

 Cratcegus rotundifvlia 29c 



Cratcegus Crus-Galli 

 Cratcegus punctata 

 Berberis vulgaris 



Notched, nearly smooth, thorns rather short, mostly < 2 in. 

 Not deeply notched, smooth, leaves leathery, thorns 2 in. or 



much longer. 



Not deeply notched, somewhat downy beneath, thorns 



mostly < 2 in. 



See also (teeth with spiny points, spines 3-pronged, garden 



shrub). 



Veins pinnate, parallel, not much branched, nearly straight to teeth-points. 

 Leaves broadly oval, mostly < 2| in., not tapering, notches acute, shrubs. 



Petiole j in. or less, brownish-woolly beneath, rare, swamps. Betula pumila 

 Petiole 2 in. or more, leaves rounded, slightly glaucous above. Amelanchier 



rotundifolia 



Margins not regularly 2-serrate, teeth at vein-ends mostly, leaves rather large. 

 Teeth regular and acute, notches flat or rounded, leaves long-pointed, trees. 

 Petiole short, in. or less, apex tapering, length < 6 in. Fagus ferruginea 

 Petiole ^ in. or longer, stout, smooth and green on both 



sides, very long. Castanea sativa 

 Petiole in. or longer, slender, teeth curved, pale with 



fine down beneath. Quercus acuminata 

 Teeth mostly rounded, notches rounded, usually not long-tapering. 



Leaves pale and finely downy beneath, base not oblique. (Southern Oaks) 

 Veins 6-8 pairs, margin wavy or lobed, moist soil. 

 Veins 8-16 pairs, margin crenate, tree in dry soil. 

 Veins 5-10 pairs, a shrub < 10 ft. high, wavy or un- 

 equally toothed. 

 Base oblique, margin wavy, teeth irregular, small tree. 



Quercus bicolor 

 Quercus prinus 



(SEE NEXT PAGE). 



Quercus prinoides 

 Hamamelis 



Virginiana 



29f 



29g 



6a 



68e 

 30c 



75a 

 74a 



73e 



73c 

 73d 



73f 

 32a 



