356 
Algae. — Fungi, Myxomyceten, Pathologie. 
2. Gulf of Bothnia and North-Baltic, August, Novemb. (K. 
M. Levander). 
3. Baltic Sea and Skagerak, August, Novemb., Febr. (G. 
Swenander). 
4. Danish Seas, August, Novemb., Febr. (C. H. Ostenfeld). 
5. Western Baltic and Eastern North Sea, August, Novemb., 
Febr. (Kräfft). 
6. South-eastern North Sea, August, Novemb., Febr. (J. P. 
van Breemen). 
7. Southern North Sea, August, Novemb., Febr. 
8. The English Channel, August, Novemb., Febr. (W. By- 
grave). 
9. North-Western North Sea, August, Novemb., Febr. 
10. Arctic Sea (Barents Sea), August. 
The material derives from investigations carried out from Bel- 
gium (N°. 7), Denmark (4), England (8), Finland (1,2), Ger- 
many (5), Holland (6), Russia (10), Scotland (9) and Sweden (3). 
C. H. Ostenfeld. 
Cotton, A. D„ Some British species of Phaeopkyceae. (Journal 
of Botany. Vol. XLV. 1907. p. 368-393.) 
In this paper three species new to Britain are recorded, viz. 
Ascocyclus affinis Sved., Hecatonema diffusum Kylin, and Streblo- 
nema ejfusum Kylin. The first of these was found growing on La- 
minaria saccharina in Cawsand Bay, Cornwall, lt is distinguished 
by the size of the ascocysts and plurilocular sporangia, which measure 
30 — 50X^—12/u and 40 — 50 respectively. The author finds 
that A. affinis , though a sharply defined species is found to vary 
in certain particulars: 1. the form of the basal disc, 2. the size and 
form of the sporangia, 3. the presence or absence of erect filaments. 
Hecatomena globosum Batters is here recorded from Swanage, the 
only previous British record being from the Isle of Cumbrae. A 
new variety nanum is described. H. diffusum was found ad Swanage 
growing on Rhodymenia palmata. Ectocarpus Padinae Sauv. and 
Streblonema volubile Mur. are discussed, a plant being referred 
doubtfully to the latter species. E. S. Gepp. 
Hardy, A. D., Notes on a Peculiar Habitat of a Chlorophyte, 
Myxonema tenue. (Journ. R. microscop. Soc. 1907. Part. 3. p. 279—281.) 
This short paper records the presence of filaments of Myxonema 
tenue, growing on the backs of carp which were kept in an artifi¬ 
cial pond. The alga was growing on the slime of the epidermis of 
the fish and was not dependent on the scales or the crevices 
between them. The ultimate effect of the algal growth on the fish was 
the premature death of the host. Nine other species of small algae 
are recorded as being among the Myxonema filaments. 
E. S. Gepp. 
Arnould, L. et A. Goris. Surune reaction color^e chezles 
Lactaires et les Russules. (C. R. Acad. Sc. Paris. 9 Dec. 
1906.) 
Arnould et Goris ont essaye sur les Champignons le r^actif sul- 
fovanillique (eau 2 vol, SO,,H 2 , 2 vol, vanilline 0.25 gr.)Tous les Cham¬ 
pignons essayes (Hymenomycetes, Gasteromycetes, Ascomycetes etc.) 
