IV] 



Bock's Herbal 



57 



remarkable characteristics. His chapters on Verbena and 

 Artemisia reflect clearly the independence of his thought. 



De Tribulo aquatico* 

 WaffanuQ, 



Text-fig. 29. "Tribulus aquaticus " = Trapa iiatans L., 

 Bull-nut [Bock, De stirpium, 1552]. 



He points out that the former plant is collected rather for 

 purposes of magic than for medicine, and he can hardly 





