480 SUMMARY OF CURRENT KESEAKCHES RELATING TO 



In spite of the work done by Schimper, Bescherelle and C. Muller, 

 much remains to be learned about the mosses of Mexico, for out of 

 75 species determined by Cardot in the families Sphagnacese-Pottiacese, 

 not less than ?A species and 5 genera are new, and these novelties occur 

 chiefly in the Pottiacete. The five new genera are Pringleella (Dicran- 

 aceee), Husnotiella, Bactylhymeniwn, Trichastorhopsis, Aloinella, the four 

 latter belonging to Pottiacese. About a score of new species are 

 described. 



Mosses of the Pacific* — V. F. Brotherus enumerates,78 species of 

 mosses from Samoa, among which were 12 Samoan species new to 

 science and 21 new to the various islands. They were collected by 

 K. Rechinger during his expedition to Samoa, New Guinea and Solomon 

 Islands in 1905. 



Mosses of Bombay Presidency.! — H. N. Dixon publishes an account 

 of a score of mosses collected by L. J. Sedgwick and R. M. Maxwell in 

 the southern part of the Bombay Presidency, and mostly on the Western 

 Ghats, but partly in the Kanara jungles nearer the sea. He describes 

 two new species : Pterobryopsis Maxwdlii and P. Jcanarensis, and proves 

 the identity of Erpodium Bellii Mitt, with E. Mangiferse C. Muell. 



Thallophyta. 

 Algae. 



(By Mrs. B. S. Gepp.) 



Italian Characese.J — L. Formiggini gives a list of six species of 

 Nitella and eleven of Cham collected in the district of Lazio, nearly all 

 of which are new records. The main interest of the list is that it 

 includes Rome, Lazio representing the ancient Latium. 



Italian Marine Algae. § — A. Preda has undertaken the Marine 

 Algse of the " Flora Italica cryptogama," and has published the second 

 part, consisting of the greater portion of the Floridea3. The first part, 

 which contains the preface, introduction and bibliography, will appear 

 shortly, together with the completion of Floridefe in page iii. The 

 present work contains a short account of the morphology of Floridese, 

 followed by the systematic treatment in which keys are given to the 

 orders, families, genera, and often to the species. Synonymy, plates and 

 exsiccatse are quoted, followed by a Latin diagnosis, distribution both 

 local and general, and critical remarks. The work is illustrated by text 

 figures, and forms a valuable addition to European marine floras. 



A. Preda || publishes the completion of his treatment of the Floridese 

 of Italy, together with a bibliography of algological literature and an 

 introduction. In the latter he deals with the geography of the region, 

 its seas, lakes, ponds, etc. ; the biological aspect of the region ; the bio- 

 logical features of the algfe in relation to the media in which they grow, 



* Denkschr. Math. Nat. k. Akad. wiss. Wien, lxxxiv. (1908) pp. 387-400. 



t Journ. of Bot., xlvii. (1909) pp. 157-64 (pi). 



X Ann. di Bot., vii. (1909) pp. 207-11. 



§ Flora Italica Cryptogama, i. fasc. 2. Rocca S. Casciano, 1908, pp. 358 (figs.). 



|| Op. oit., 1909, pp. 45, lvi., and 359-462. 



