KONGL. SV. VET. AKADEMIENS HANDL. BAND. 20. N:0 5. 
min 
nN 
— 
mae 
w 
Monostroma crispatum. /vy. /1—15. 
Fig. 11.  Habit-figure. '/,. 
» 72. Transverse section of the uppermost part of the frond, 49), 
» 3, Longitudinal section of the lower part of the frond. 1), 
PLATE 29. 
Monostroma angicava. 
Fig. 1. Two specimens issuing from the same fastening surface, one (downwards to the right) young, the 
other full-grown bearing zoospores. '/,. 
2. Lowest part of the frond, seen superficially. 4/). 
» & Transverse section of the same. 7%). 
4. Part of the vegetative portion of the frond, seen superficially. 7), 
» & Transverse section of the same. 4°/,. 
» 6. Part of the zoosporiferous portion of the frond. 7°) 
» 7. Transverse section of the same. 4°°/,. 
PLATE 30. 
Monostroma cylindraceum. 
Y 
Lowest part of the frond, seen superficially. 49/). 
» @& Transverse section of the same. 1°/,. 
» 4, Part of the vegetative portion of the frond, seen superficially. 4/,. 
» 9 Transverse section of the same. 4°/,. 
Fig. 1. Full-grown specimen bearing zoospores.  '/ 
2 
» 6, Part of the zoosporiferous portion of the frond. 7°°/,. 
» 7. ‘Transverse section of the same. 4°°/,. 
PLATE 31. 
Enteromorpha micrococca f. subsalsa. Ivy. 7—.°. 
Fig. 1. Part of a specimen. *°/;. 
» 2, Part of the wall of the frond, seen superficially, *9°),. 
» 2. Transverse section of the same. 1/,. 
Cheetophora pellicula. Fg. 4—7. 
Fig. 4. Prostrate branch-system with branches issuing on one side. 4"), 
» & Ascending branch-system. 4/). 
» 6. Tip of branch bearing hairs. 4/,. 
» 7. Part of branch with zoosporangia. 4/,. 
