PLATE 20. 



Hedophyllum subsessile (Aresehoug) Setchell. 



31. Habit of a half grown plant, showing the very short and stout stipe, 

 with its holdfast, the thickened base of the original blade from 

 which the central portion has worn away, and the two blades 

 borne on either side. The thickened base of the old blade gives 

 off hapteres, some of which are shown in the figure. (about 

 one-half nat. size) 



Drawn by A. A. Lawson, under the direction of W. A. Setchell. 



[404] 



