KONGL. SV. VET. AKADEMIENS HANDLINGAR. BAND. 20. N:0 5. 337 



PLATE 13. 

 Halosaccion ramentaceum t. robusta. Fig. 1—2. 



Fig. 1. Speoimen, the, »ranieiitfi" of whicli have been dissolved for tlie greatest part after tlie tetrasporangia 

 have ripened. \/j. 

 « 2. Part of specimeii ivith uew rarnenta shooting fortli from tlie reinains of the forme.rly dissolved oiies. '/i- 



Halosaccion ramentaceum f. subsimplex. Fig. 3. 



Fig. 3. Hnbit-tignre. '/i- 



Halosaccion ramentaceum f. ramosa. Fig. 4. 



Fig. 4. Habit-ligurc. '/i. 



PLATE 14. 

 Sarcophyllis arctica. Fig. 1—3. 



Fig. 1. Older, full-grown specimeii. '/i- 

 » 2. Transverse section of part of tlie frond, beariiig procarps. "*"'/]• 

 >i 3. Transverse section of part of tlie frond, bearing sporocarps. ''%. 



Kallymenia septemtrionalis. Fig. 4—6. 



Fig. 4. Young specimen. '/r 

 » 5. Older, probably full-grown specimen. '/j. 

 " 6'. Transverse section of tlie frond in an older specimen. """/i- 



PLATE 15. 



Ptilota pectinata f. integerrima. Fig. 1. 



Fig. 1. Part of older, fnll-grown specimen. Vi- 



Ptilota pectinata f. litoralis. Fig. 2—5. 



Fig. 2. Habit-figure. Vi- 

 » 3. Part of branch-systera of the last order. -"/j. 

 » 4. Transverse section of a full-grown brancli of tlie last order but one. "*'Vi- 



/I 



Ptilota pectinata i'. typica. Fig. G. 



Fig. 6. Transverse section of a full-grown brancli of tlie last order but one. '"Vi- 



K. Vet. Aknil. Uan.U. Ed, '20. N:o 5. 



43 



