KEY TO TREES AND SHRUBS IN AUTUMN 



171 a Leaves linear-oblong in outline, fern-like, fragrant when 



crushed ; shrub 1-3 ft. high Comptonia. p 14.1 



b Leaves not completely as in a 172 



172 a Leaves 2 or 3 lobed, aromatic; bark spicy. .Sassafras, p 154 

 b Leaves not aromatic 173 



173 a Shrub 3-5 ft. high ; leaves 3-10 in. broad, 3-5-lobed, 



hairy Rubus odoratus. p 164 



b Shrubs or trees not completely as in a 174 



174 a Shrub 3-10 ft. high with recurved branches and bark 



peeling off in shreds; fruit of 3-5 shiny, inflated pods 



Opulaster. p 163 

 b Shrubs or trees not completely as in a 175 



175 a Shrubs with ovoid capsules about i in. long; often culti- 



vated in hedges; large, showy flowers sometimes 



present Hibiscus, p 185 



b Shrubs or trees with fruit wanting or not as in a 176 



176 a Shrubs 5 ft. or less high; leaves somewhat rounded, 



^-3 in. broad Ribes. p 162 



b Shrubs or trees 8 ft. or more high 177 



177 a Shrubs or trees with thorns; leaves usually palmately 



veined Crataegus. p 167 



b Shrubs or trees not with thorns 178 



178 a Lobes of leaves entire or relobed Quercus. p 143 



b Lobes of leaves more or less regularly toothed 179 



179 a Shrub with fruit a nut enclosed by 2 bracts, usually 



present on shrub Corylus avellana. p 142 



b Trees with fruit wanting; some leaves usually not lobed 180 



1 80 a Twigs hairy; bark of trunk often striped 



Broussonetia. p 145 

 b Twigs not usually hairy; bark not striped. .Morus. p 144 



181 a Shrubs with under surface of leaves covered with yel- 



low resin dots Myrica. p 141 



b Leaves not as in a 182 



182 a Shrub with yellow flowers on the branches; fruit 



a hairy capsule %-% in. long; winter buds without 



thin scales Hamamelis. p 163 



b Shrubs or trees not completely as in a 183 



183 a Bark smooth, dark gray, the trunk ridged or sinew-like; 



fruit in clusters with leafy bracts Carpinus. p 142 



b Trees or shrubs not completely as in a 184 



184 a Bark with numerous horizontal markings usually J /& 



in. or more long 185 



b Bark not with markings as in a 187 



76 



