EQUISETALES 



367 





FIG. 192. 



Equisctiun pratcnse, Ehrh. Rhizome with unbranched fertile shoots (a), a fertile 

 shoot which has begun to form branches (b), and a young sterile shoot (c). Natural size. 

 (After Duval-Jouve, from Rabenhorst's Krypt. Flora.) 



