BIGNONIACES. SILVA OF NORTH AMERICA. 85 
CONSPECTUS OF THE NORTH AMERICAN SPECIES OF CATALPA. 
Flowers in many-flowered crowded panicles; corolla thickly spotted on the inner surface; fruit 
slender, thin-walled ; leaves slightly acuminate. . .- . © 2. 2 © 6 + + « + « « « © 1. Catanpa CATALPA. 
Flowers in few-flowered open panicles; corolla inconspicuously spotted ; fruit stout, thick-walled ; 
leaves caudate-acuminate . . . . ...... oe ew ee ee ew wwe) 62. CATALPA SPECIOSA. 
