PLATE XXV. 
Alaria macrophylla n. sp. 
Fig. 1. Habit of a plant from Higashiura, Kunashiri Isl., Kuriles. 
Fig. 2. A mature sporophyll. x 0.26. 
Fig. 3. Cross section through the midrib of the blade, x 1.6. 
x 0.13. 
