98 
CORNACEAE, dogwood family 
(see also NYSSACEAE) 
CORNUS, dogwood 
Cornus alternifolia L. f., alternate-leaved dogwood, green osier, 
pagoda dogwood, pigeon berry, p. 1154 
C. amomum Miller, swamp dogwood, pale dogwood, p. 1152 
ssp. obliqua (Raf.) J. Wilson [S: C. obliqua Raf.] (Wilson, 1965) 
C. drummondii C. Meyer, rough-leaved dogwood, p. 1152 
C. florida L., flowering dogwood, p. 1150 
f. florida 
f. rubra (Weston) E. J. Palmer & Steyerm., pink dogwood 
[M: C. florida] (the genetic basis for this color variant 
has not been investigated; it is retained here because 
of the form’s horticultural importance 
C. foemina Miller, gray dogwood, stiff dogwood, p. 1152 
ssp. foemina 
ssp. racemosa (Lam.) J. Wilson [S: C. racemosa Lam.] (Wilson, 
1965) 
CORYLACEAE (see BETULACEAE) 
CRASSULACEAE, stonecrop family 
PENTHORUM, see SAXIFRAGACEAE 
SEDUM, stonecrop, orpine 
*¢Sedum acre L., mossy stonecrop (Clausen, 1975) 
SSp. acre 
S. nuttallianum Raf., Nuttall’s sedum, p. 772 
S. pulchellum Michaux, widow’s cross, p. 772 
+S. purpureum (L.) Schultes, live-forever [S: S. telephium L. ssp. 
—— (L.) Schinz & R. Keller] (Clausen, 1975), 
S: Steyermark G: Great Plains Flora M: Mohlenbrock 
