62 
CORYLUS, hazelnut 
Corylus americana Walter, hazelnut, American hazelnut [S, G: 
incl. var. americana f. missouriensis (A. DC.) Fern., 
var. indehiscens E. J. Palmer & Steyerm.] (Drumke, 
1964; Hardin, 1971) (note that the recognition of 
infraspecific taxa in this species requires further 
study), p. 524 
OSTRYA, hop hornbeam 
Ostrya virginiana (Miller) K. Koch, eastern hop hornbeam, 
ironwood [S, G: incl. var. Jasia Fern., var. virginiana f. 
glandulosa (Spach) J. F. Macbr.] (Hardin, 1971) (note 
that the recognition of infraspecific taxa in this species 
requires further study), p. 526 
BIGNONIACEAE, trumpet creeper family 
BIGNONIA, cross vine 
Bignonia capreolata L., cross vine, quarter vine, p. 1370 
CAMPSIS, trumpet creeper 
Campsis radicans (L.) Seemann, trumpet creeper, trumpet vine, 
devil’s shoelaces, shoestrings, hell vine, p. 1368 
CATALPA, catalpa 
*Catalpa ee Walter, southern catalpa, common catalpa, 
p. 1370 
a ovata G. Don, Chinese catalpa, p. 1371 
speciosa Warder ex Engelm., northern catalpa, catawba tree, 
cigar tree, hardy catalpa, p. 1371 
S: Steyermark G: Great Plains Flora  M: Mohlenbrock 
