112 



NEW BRITISH NITOPHYLLUM. 



Dr. J. E. Gray has kindly drawn our attention to a recent and 

 valuable memoir by J. G. Agardh, entitled " Bidrag till Florideernes 

 Systematik," with which Algalogists in this country should make 

 themselves acquainted. Apart from the new and systematic 

 arrangement of the Floridea? which it contains, descriptions of new 

 species are interspersed, and one of these is from our own coasts. 

 The specimen was communicated to the author by Mrs. Griffiths, 

 under the name of Nitophyllum Hillice, and is here described as 

 follows : — 



Nitophyllum litteratum. J. Ag. — Stem short, cuneate ; frond 

 rather obscurely venose beneath with dichotomous anastomosing 

 veins, cuneato-reniform, palmately pinnatifid, lobes linear-cuneate, 

 margin minutely undulato-crenulate, base contracted, sori seriate 

 between the veins, more or less confluent amongst themselves, 

 forming irregular figures. 



The shores of England (Mrs. Griffiths). 



Sori not punctiform and scattered, as in N. Hillice, but linear, 

 oblong, or variously configurate, seriate between the veins. The 

 substance is also thicker. 



CRYPTOGAMIC LITERATURE. 



Monthly Microscopical Journal for December. — On the 

 structure of the valves of Eupodiscus Argus and Isthmia enervis, 

 showing that their silicious deposit conforms to the general plan of 

 deposition in simpler forms, by Henry J. Slack, F.G.S. 



Hedwigia, No. 10 (1872), contains " Pyrenomycetes novi Aus- 

 triaci," by George Winter. 



Pilze an Quittenasten, von Stefan Schulzer von Muggenburg, 

 in Verb. d. Zool. Bot. Gess in Wien, xxi., 1871, abstracted in 

 Hedwigia, No. 10 (1872). 



Notes on the Lichens in Sowerby's Herbarium, Part ii,, 

 by Rev. J. M. Crombie, M.A., F.L.S., in " Journal of Botany," for 

 Dec, 1872. 



Recent Researches in the Diatomaceje, Part v., by the Rev. 

 Eugene O'Meara, A.M., in " Journ. Bot,," Dec, 1872. 



The Mosses of Oxfordshire and the Neighbourhood of 

 Oxford, by Henry Boswell, in « Journ. Bot.," Dec, 1872. 



Blights on Tea and Coffee, by M. C. Cooke, in " Gardener's 

 Chronicle," Nov. 30, 1872. pp. 1588. 



