432 



OPHIOGLOSSALES 



FIG. 235. 



Ophioglossutn vulgatum, L. A old plant sprung as an adventitious bud from the 

 root (a-b) ; from its stem have sprung further roots (c-d and e-f), from one of which again 

 an adventitious bud (h) has arisen : g the leaf for the next vegetative period, still un- 

 folded ; /=an abortive spike attached to expanded leaf. (After Stenzel.) Z? = an old 

 plant with one sterile and one fertile leaf. C and D show form of leaf, with spike, and 

 K the venation. F, G, H details of spike. /= Ophioglossum vulgatum var. polyphylla 

 A. Br. The figures A-D and J are half the natural size. From Rabenhorst's Krypt. 

 Flora. 



