AMERICA Orp Wortp 
Juglandaceae (Walnut Family) 60 
Carya 
cordiformis (Bitternut ) (cathayensis, wanted) 
glabra ( Pignut ) 
ovata (Shagbark Hickory ) 
Pecan var Marquardt 
var Pleas Hybrid 
tomentosa (alba, Mockernut) 
Juglans 
cinerea (Butternut ) cathayensis 
nigra a ee ay alnut ) mandshurica 
Stablet regia (English Walnut ) 
var ‘e homas Siebokc liana 
Platycarya 
strobilacea h 
Pterocarya 
fraxinifolia (Wingnut ) 
rhoifolia h 
stenoptera 
Betulaceae (Birch Family) 61 
Alnus 
incana (Speckled Alder) cordata 
rruticosa 
Hybrid elutinosa (European Alder ) 
x Koehnet (subcordata x in- hirsuta 
cana japonica 
rubra nitida 
tenuifolia subcordata 
setula 
Bark white 
papyrifera (Canoe B) mandshurica (japonica) 
var kenaica pendula 
var neoalaskana var fastigiata 
var occidentalis var gracilis 
populifolia (Gray B) var tristis 
pubescens 
