GENERA AND SPECIES 



HlPPOCASTANACE^E 



jEsculus glabra 

 sEsculus octandra . 

 sEsculus hippocastanum. 



ACER AC E^ . 



Acer pennsylvanicum 

 Acer spicatum 

 Acer saccharum 

 Acer saccharinum . 

 Acer rubrum . 

 Acer platanoides 

 Acer pseudo-platanus . 

 Acer negundo. 



HORSE-CHESTNUT FAMILY 



Ohio Buckeye . . .50 



Sweet Buckeye . . -54 



Horse-chestnut . . -54 



MAPLE FAMILY 



Striped Maple 

 i Mountain Maple . 

 ^ Sugar Maple 

 ^Silver Maple 

 \jRed Maple . 

 xj Norway Maple . 



Sycamore Maple . 



Box Elder . 



J 



60 

 64 

 66 



73 

 77 

 82 

 82 

 85 



ANACARDIACE^E . 

 Rhus hirta 

 Rhus copallina 

 Rhus vernix . 



SUMACH FAMILY 

 Velvet Sumach . 

 Dwarf Sumach . 

 Poison Sumach . 



94 



LEGUMINOS^: 



Robinia pseudacacia 

 Robinta viscosa 

 Cercis canadensis . 

 Gymnocladus dioicus 

 Gleditsia triacanihos 

 Cladrastts lutea 



PEA FAMILY 



Locust . . . .97 



Clammy Locust . . . 103 



Redbud . . . .104 



Kentucky Coffee-tree . .109 



Honey Locust . . .112 



Yellow- wood . 116 



Prunus nigra 

 Prunus americana 

 Prunus Pennsylvania . 

 Prunus mrginiana 

 Prunus serotina 

 Pyrus coronaria . 

 Pyrus americana . 

 Pyrus aucuparia .. 

 Pyrus sambucifolia 

 Cratcegus crus-galli 

 Cratcegus coccinea . 

 Cratcsgus mollis 



. ROSE FAMILY 



. Canada Plum . . .119 



. Wild Plum . . . .120 



. Wild Red Cherry . .122 



. M3hoke Cherry . . .125 



.x/Black Cherry . . .128 



. Crab Apple. " . . .133 



Mountain Ash . . .136 



. vj European Mountain Ash . 138 



. Elderleaf Mountain Ash . 140 



. Cockspur Thorn . . .140 



. White Thorn . . .143 



. Scarlet Haw . . .144 

 xii 



