INDEX 519 
Vitis vinifera, 52, 271; vulpina, 38 Wound periderm in certain cacti, 353 
Wi ria americana, 276, 497 ear echinatum, 277 
Mloarsiacintits Claytoni, 39 Ximemia americana, 271 
poe wax, P. The evolution of Zanicheli palustris, 368 
mg Zea ner: 09, 329; Mays, 56, 312 
a Uva-ursi, 274, 496 isi age 
boiaganttes. ag ek 270, 271 
