PLATE 1 



1. Virginia Creeper. l« 



2. Poison Ivy. 2. 



3. English Ivy. 3. 



309 



4. Trumpet Creeper. 4. (i/,) 



5. Grape Type. 5, 6. ('/,) 

 o. i% 



6. Bur Cucumber, lo. (%) 



