336 KJELLMAN, THE ALG.E OF THE ARCTIC SEA. 



Fig. 3. Part of plant, bearing sporocarps. V]. 



» 4. Part of cross section of the main axis of an older plant near the base. *"/,. 



» 5. Part of median longitudinal section of the main axis of an oder plant near the base. *"/, 



PLATE 9. 



Fig. 1. Rhodomela lycopodioides f. typipa. /?. laxa. Vj. 

 » 2. Rhodomela lycopodioides f. typica. /. tenera. '/[. 

 » 3. Rhodomela lycopodioides f. setacea. Vj. 



PLATE 10. 

 Rhodomela lycopodioides f. flagellaris. Fig. 1 — 2. 



Fig. 1. Habit-figure, ^/j. 

 » 2. Part of a transverse section of the main axis of the frond near the hase. *"/. 



Fig. 3. Habit-figure. ",. 



Delesseria Corymbosa. Fig. 8. 



PLATE 11. 



Hsemescharia polygyria. 



80/ 



.'!• 



Fig, ]. Vertical section of a vegetative part of the frond. *''/i. 



» 2. Vertical section of a part of the frond, bearing cystidia. 



» 3. Part of the vegetative system. ^^Jx- 



i> 4 — 6. Parts of the frond, bearing cystidia. *'"'/i- 



i> 7. Branch-system, one axis of which ends in a trichogyn (?). '"'" ,. 



« 8. Branches with numerous lateral trichogyns (?). ^""/i- 



" .9, Branch-system with undevelopeil tetrasporangia (?). ^""/i- 



PLATE 12. 

 Oliantraiisia efflorescens f. tenuis. Fig. 1~2. 



Fig. 1. Part of sporiferous specimen. *" j. 

 » 2. Sporiferous branch. **','i. 



Rhodophyllis dichotoma. Fig. 3. 



Fig. 3. Form occurring in the interior of deep bays. '/j. 



Halosaccion ramentaceum f. robusta. Fig. 4. 



Fig. 4. Specimen bearing tetrasporangia. ''o. 



