D. 



A. 



FIG. 262. Equisetum telmateia. A, upper part of fertile shoot (x 1). B, part of 

 rhizome with lateral shoots ; T, tubers. C, cross-section of an internode ( X 4) ; 

 L, cortical lacunae. D, sporophylls (X 4). E, single sporophyll (X (!) : ./<, 

 sporangium. 



