NEW BRITISH FRESH-WATER ALGJ3. 
99 
Zygnema Kutzingii or any other, except the false name under 
which it has surreptitiously flourished. 
Onychonema Nordstedtiana, Turner Jour n. Roy. Micr. Sec. 1865,934 
t. 15, f. 3. 
Cells forming filaments of fifty or sixty cells or more, connected, 
by the curious sub-capitate claspers peculiar to this genus. With- 
out these processes the cells resemble smooth Cosmaria , as they do 
not possess the booklets (at the ends of the segments) which per- 
tain to 0. uncinatum, W., and 0. Iceve , Nord. Chlorophyll con- 
fluent. 
Size. 14^1ongx 18 /i broad. Gelatinous sheath, 36-40/z broad, 
Isthmus, 3-4^u. 
Strensall Common, near York. 
CRYPTOGAMIC LITERATURE. 
Roumeguere, C. Fungi Gallici, cent. 35, 86. 
Roumeguere, C. Algues de France, cent. vii. 
Rehm, Dr. Ascomyceten, fasc. xvii. 
Cooke, M. C. Illustrations of Fungi, parts 37, 38, 39. 
Nordstedt, 0. Desmidieer samlade af S. Berggren under 
Nordenskioldska Expeditionen till Gronland, 1870. 
Errera, L. Sur l’existence du glycogene dans la Levure de biere. 
Henning, E. Bidrag till svampfloran i Norges sydligare fjell- 
traker. 
Toni, G. B., and Levi,D. Flora Algologica della Venezia, part 1. 
Winter, G. Rabenhorst’s Kryptogamen Flora, Pilze, No. 20. 
Kirk, T. Fruit Blights and diseases of Fruit Trees in New 
Zealand. 
Peck, C. 38th Annual Report of N.Y. State Museum of 
Natural History. 
Thuemen, F. von. Die Bekampfung der Pilzkrankheiten unserer 
Culturgewachse. 
Oudemans, C. A. J. A. Contributions a la Flore Mycologique 
de Nowaja Semlja. 
Spruce, R. Conspectus Hepaticarum, part 2, “ Trans. Bota- 
nical Society, Edinburgh,” vol. xv., pt. 2. 
Hitchcock, R. Red Snow, in “ Amer. Mon. Micr. Journ.,” 
Dec., 1885. 
Trail, J. W. H. Fungi of the East of Scotland, in u Scot- 
tish Naturalist,” Jan., 1886. 
Stevenson, J., and Trail, J. W. H. Mycologia- Scotica, 
Supplement in “.Scottish Naturalist,” Jan., 1886. 
Nylanper, W. New North American Arthoniae, in “Bull. 
Torr. Bot. Club,” Nov., 1885. 
Turner, W. B. New and Rare Desmids, in “Journ. Roy. 
Micr. Society,” Dec., 1885. 
Dowdeswell, G. F. On the Cholera “ Comma” Bacillus, in 
“Journ. Roy. Micr. Society,” Dec., 1885. 
