ALG.E BRiTANitlCiE RARIORES EXSlCOATJS. 
143 
7. Ectocarpus granulosus, Ag. (plurilocular sporangia). 
Exmouth, July, 1881, E. M. Holmes. 
8. Ectocarpus simplex, Cm. on Codium tomentosum, Ag. 
The Lizard, July, 1882, E. M. Holmes. 
9. Elachista Grevillii, Am., on Cladophora rupestris, Ktz. 
Berwick-on-Tweed, October, 1882, E. Batters. 
10. Giraudia sphacelarioides, Derb ., on Zostera. 
Weymouth, August, 1882, E. M. Holmes. 
11. Lomentaria reflexa, J. Ag. (Tetraspores). 
Sidmouth, June, 1882, E. M. Holmes. 
12. Melobesia Corallinse, Cm., on Corallina officinalis, L. 
The Lizard, July, 1882, E. M. Holmes. 
13. Melobesia Laminarise, Cm., on Laminaria Cloustoni, Le Jol. 
Weymouth, August, 1882, E. M. Holmes. 
14. Melobesia Thureti, B ornet, on Jania corniculata, Lmx. 
Sidmouth, June, 1881, and The Lizard, July, 1882, E. M. 
Holmes. 
15. Monostroma laceratum, Thur. 
Wadebridge, May, 1881, R. V. Tellam. 
16. Nitophyllum reptans, Cm., on Laminaria Cloustoni, Le Jol. 
Berwick-on-Tweed, 1882, E. Batters. 
17. Nitophyllum uncinatum, J. Ag. 
Exmouth, June, 1882, The Lizard, July, 1882, E. M. 
Holmes. 
18. Phyllophora palmettoides, J. Ag. 
Sidmouth, February, 1881, E. M. Holmes. 
19. Phlceospora subarticulata, Aresch. 
Carnarvon, April, 1881, E. M. Holmes. 
20. Phlceospora tortilis, Aresch. 
Elie, Fifeshire, July, 1881, G. W. Traill. 
21. Prasiola marina, Cm. 
Joppa, near Edinburgh, April, 1881, G. W. Traill. 
22. Sphacelaria cirrhosa, Ag. var. patentissima, Grev. on the 
roots of Zostera. 
Weymouth, August, 1882, E. M. Holmes. 
23. Sphacelaria plumigera, Holmes (S. plumosa, Harv . partim), 
(unilocular sporangia). 
Joppa, near Edinburgh, January, 1881, G. W. Traill. 
24. Sphacelaria pseudo-plumosa, Cm. 
Weymouth, August, 1882, E. M. Holmes. 
25. Streblonema investiens, Thur., on Gracilaria compressa, 
J. Ag. 
Weymouth, August, 1882, E. M. Holmes. 
