PLATE 79 



Raphides 



i. Phytolacca root {Phytolacca americana, L.). 2. Squills (Urginea mari- 

 tima [L.] Baker). 3. Hydrangea root {Hydrangea arborescens, L.). 4. Con- 

 vallaria {Convallaria majalis, L.). 5. Carthagean ipecac {Cephcelis acuminata 

 Karst.) 6. Bundle of raphides from false unicorn root. 



A. Bundle surrounded with mucilage. B. Mucilage expanded and par- 

 tially dissolved. C. Bundle free of mucilage. 



