196 KANSAS ACADEMY OF SCIENCE. 
Verbena urticzfolia, 145. 
Vernonia baldwinii, 86, 100. 
Vicia americana linearis, 6, 137. 
Viola cucullata, 88. 
Viola delphinifolia, 88. 
Viola nuttallii, 88. 
Viola pedatifida, 88. 
Viola tricolor (cult. pansy), 88. 
Xanthium canadense, 90. 
Xanthoxylon americanum, 146. 
Zea mays, 76. 
Zygadenus nuttallii, 23. 
