172 



— 30 from Britain (Cumbrae); and fig. 31 from' 

 France (Morlaix). 



L. coralloides f. flabelligera. 



Fig. 32 — 37. Habit-figures of 6 specimens from France, gathered 

 at Morlaix. 



L. coralloides f. subsimplex. 

 Fig. 38 — 42. Habit-figures of 5 specimens from Britain (Cumbrae).. 



L. divergens. 

 Fig. 43 — 50. Habit-figures of 8 specimens of the plant. 



PL 17. 



L. flabellatum f. Granii. 



Fig. 1 — 3. Habit-figures of younger specimens of the plant. 

 „ 4- — 5. Older individuals in the act of loosening themselves 



from the substratum * 

 „ 6 — 7. Older individuals loosened from the substratum. 



L. colliculosum f. densa. 

 Fig. 8—10. Habit-figures of 3 specimens from Skorpen near Tromso. 



L. colliculosum f. laxa. 

 Fig. 11. An American specimen of the form (Collins' coll. D.).. 



L. colliculosum f. rosea. 



Fig. 12 — 13. Norwegian specimens of the plant. 

 „ 14. An American specimen (Collins' coll. F.). 

 „ 15 — 16. British specimens, gathered at Berwick. 



L. polymorplium f. tuberculaia. 

 Fig. 17—19. Habit-figures. 



L. polymorphum f. valida. 

 Fig. 20—21. Habit-figures. 



