ZOOLOGY AND BOTANY, MICROSCOPY. ETC. 507 



Stewart, F. C, G. T. French, & J. K. W i l s o n —Troubles of Alfalfa in 

 New York. 



[A description of the various fungi parasitic on Alfalfa.'] 



New York Ag. Exp. Stat. Geneva, Bull. 305, 1908. 

 See also Bot. Centralbl, ex. (1909) p. 548. 

 Sydow, H. & P. — Micromycetes Japonici. 



[Many new species are described. The new genera are Hadroucma and 

 Tcratosperma, both Dematiacea?.] 



Ann. MycoL, vii. (1909) p. 168-75 (1 fig.). 



Theiszen, F. — Xylariaceae austro-brasilienses. 



[Species are carefully described, aud notes added as to the best methods of 

 grouping species."] Tom. cit., pp. 141-67. 



Tueconi, M. — Intorna alia niycologica lombardo i. 



[An account of the fungi of Lornbardv ; 1970 have been recorded.] 



Atti Int. Bot". Univ. Pavia, ser. 2, xii. (1908) p. 57. 

 See also Hedivigia, xlviii. (1908) Beibl., p. 60. 



Lichens. 

 (By A. Lorrain Smith. F.L.S.) 



Italian Lichens.* ■ — A. Jatta is taking charge of the Section 

 " Lichenes " in the new Italian Cryptogamic Flora, and the first fascicle 

 is now published. It contains a copious Bibliographia of the subject, 

 in so far as the writers touch on matters connected with Italian 

 Lichens, an introduction, and a large number of genera and species of 

 the series Homoeolichenes. 



In the introduction the author gives a general sketch of the biology 

 •of lichens, the development of thallus and fruit, the chemical products 

 of the thallus, and the habitat and utility of these plants. He keeps 

 to the old classification of Homoeolichenes and Heterolichenes, as being 

 both natural and practical ; but he has made a number of changes in 

 classification since the publication of the Sylloge, which are justified by 

 advancing knowledge on the subject. The genera are illustrated by 

 figures in the text. 



Problems of Lichenology.f — Bruce Fink writes on this subject, 

 with special reference to North America. He asks for collectors and 

 students, and, above all, for the preparation of a reliable manual of 

 Xorth American lichens, and monographs of the genera. He also 

 recommends lists to be made of Lichens, and that someone should 

 undertake the typifying of Lichen genera. A more thorough knowledge 

 of their morphology and an understanding of their symbionts are 

 much to be desired. 



Mycetozoa. 



(By A. Lorrain Smith, F.L.S.) 



Portuguese Myxomycetes.J — C. Ton-end publishes a list of Myxo- 

 mycetes collected by himself in Portugal. He does not claim complete- 

 ness for his catalogue : lie rather hopes to incite others to enter what 

 he considers a very rich field. He has found some very rare European 

 species, seven or eight reputed American or tropical, and three new 

 varieties of well-known forms. Torrend's list comprises 97 species. 



* Flora Ital. Crypt., pt. iii. (1909) 11,2 pp. (37 figs.). 



t Mvcologia, i. (1909) pp. 28-32. 



% Bull. Soc. Port. Sci. Nat., ii. (190S) pp. 55-73. 



