86 KJELLMAN, THE ALG^ OF THE AKCTIC SEA. 



Species Jincl forms of the Flora of tlie Arctic Sea, 



Series FLORIDE^ (Lamour.) Berth. ^) 

 Bangiaceen. Lamour. Essai p. 115; lim. mut. 



Fain. CORALLINACEiE (Lamour.) Hauck. 



Meeresalg. p. 19; Lamour. Hist. Polyp. p. 224. 



Geij. Corallina (Tourn.) Lamour. 



Hist. Polyp. p. 275; Tourn. List. Herb. p. 570; char. mut. 



Corallina officiualis L. 

 Fauna Suec. p. 539. 



f. typica. 

 Descr. Corallina ortieinalis Aresch. in J. G. Ag. Spec. Alg. 2, p. 562. 

 Fig. » » Hauv. Phyc. Brit. t. 222. 



Exsicc. 'I » Aeesch. Alg. Scand. exsicc. N:r 8. 



f. jlexilis nob. 



f. dense csespitosa, 10 cm. älta; IVonde quara in forma typica graciliore et flexiliore, ramosissiraa, ramis 

 ramulisque plus minus fasciculato-congcstis, raraulis oppositis, alternis, subsecundis, ultimorum ordinum aequalibus, 

 elongatis, flexilibus, saepe in callo reniformi desinentibus; articulis, sumrais exeeptis, plus minus compressis.. 

 diametro 2:plo — 3:plo longioribus; conceptaculis tetvasporangiferis raraulos vulgo brevissimos, articulo singulo 

 compositos, interdura loiigiores, articulatos terminantibus; tetraporangiis, divisioue peracta, obovato-oblongis vel 

 obloiigis, 185 — 190 f^i. longis, 60 — ^65 /(. crassis. 



f. robusta nob. 



f. quam C. officinalis typiea major et fere duplo crassior, ponderosa, Isete rosea; fronde parce et irregu- 

 lariter ramosa, ramis ultimi ordinis elongatis, strictis, alternis vel subsecundis, vix oppositis; articulis teretibus, 

 suboylindricis, raro subconipressis, obcouicis, diametro sesqui- ad 2:plo longioribus. 

 Syn. Corallina officinalis Gobi, Algenfl. Weiss. Meer. p. 21. 

 » » Kleen, Nordl. Alg. p. 11. 



» « Nyl. et Sael. Herb. Fenn. p. 74. 



Remark 07i the definition of the form. I know perfectly well that in specimens of 

 C. officinalis on the west coast of Sweden several of the branches of the last order are 

 in certain cases elongated and assume a cylindrical form. The form that I have cha- 

 racterized above under the name oi flexilis certainly resembles such specimens. But they 



') I quote Berthold as having given the Floridece the limits here accepted, on the ground of his being 

 the first that has referred decidedly the Porphyracete (Bangiacere'.) to this series. 



