C. aurantiaca. Cent. Asia. 
C. Boisii. W. China. 
C. Chamlagu. N. China. 
C. densa. China. 
C. Franchetiana. S.W. China. 
C. frutex. S. Russia to Turkest. and Siber. 
C. Gerardiana. N.W. Himal. 
C. grandiflora. S. Russia and Cauc. to Turkest. 
C. Maximowicziana. W. China. 
C. microphylla. Siberia, N. China. 
C. oreophila. W. China. 
C. pygmaea. N.W. China and Siberia. 
C. tragacanthoides. N.W. China to Altai and Himal. 
CARPINUS, Retulaceae. Hornbeam. Compact rounded trees of 
medium height. C. Betulus makes a tall hedge. It occasionally 
kills back in winter [6E, 5F, nursery]. 
C. Betulus. European H.; Eu. to Persia. 
C. caroliniana. American H., Blue Beech; Que. to Fla. and Tex. 
C. cordata. Japan, N.E. Asia. 
C. japonica. Japan. 
C. laxiflora Davidii* 
C. orientalis. S.E. Eu., Asia Minor. 
C. Tschonoskii. Japan, N.E. Asia. 
CARYA, Juglandaceae. Hickory. Tall native trees with usually 
edible nuts, the best obtained from C. ovata. Their large com¬ 
pound leaves turn yellow before falling. Hickories are among 
the most difficult trees to transplant [1F, 5D]. 
C. cordiformis. Bitternut; Que. to Fla. and La. 
C. glabra. Pignut; Me. and Ont. to Fla. 
* C. laxiflora is native in Japan. 
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