ZOOLOGY AND BOTANY, MICROSCOPY, ETC. 501 



number to 49 species and 14 varieties. He describes all of these and 

 gives tables to aid in their determination. Bucholtz also adds biological 

 observations and notes made from his large experience of these fungi. 

 Three species (Ela/phomyces, Hymenogaster and Tuber) have been definitely 

 associated with mycorhiza formation, and are to be found associated 

 with special trees. Most of the forms grow in old woodlands and old 

 park lands. Many grow in loose humus, where moisture and circulation 

 of air are assured to them. Shade and moisture are essential to nearly 

 all of them. A few are developed in June and July, but autumn is 

 the best time for collecting. 



Luxemburg Fungi.* — Johann Feltgen, who issued the first part of 

 the fungus-flora of Luxemburg, died in 1904, and the editing of the 

 second part, comprising the Basidiomycetes and Auricularei, has been 

 undertaken by Ernst Feltgen, the material having been collected and 

 almost made ready for publication. The species found in the district 

 number 870 and are arranged under 115 genera. He divides the order 

 Basidiomycetes into the sub-orders G-asteromycetes, Phalloidei, Dacryo- 

 mycetes and Tremellinei. The order Auriculariei is represented by two 

 genera, Auriculariei and Platygloea. An index of the genera is given. 

 E. Klein adds an obituary notice of the deceased mycologist. 



German Fungus Flora.j — W. Migula has issued three more fascicles 



of this work, dealing largely with the Chytridineas, with the families 



Oochytriacere, Olpidiaceas, Synchytriaceas, Hypochytriaceas, and Rhiz- 



idiaceas. Many of the fungi described are of economic importance, as 



parasites of the higher plants. The plates issued are some of them 



coloured ; they do not all correspond with the fascicles with which they 



are published. 



> 



Italian Flora. $ — Three fascicles of this flora have recently been 

 issued dealing with Fungi. The Uredineas are under the charge of 

 Alex. Trotter, who begins by a general discussion of the group. The 

 descriptive portions of the work are confined to the genera Uromyces 

 and Puccinia, the latter only in part. 



L. Petri § is the author of the Gasterales, a group well represented 

 in Italy ; here also the systematic portion of the work is preceded by 

 a description of the different families, notes on distribution, utility, 

 locality, habitat, etc. A full bibliography is also given. 



Hymenomycetes.|| — Maurice Barbier reviews the work on Bussula 

 published by Peltereau in a previous issue of the Journal. He finds 

 after many years of study that many Russulse regarded as distinct are 

 only variations of one species, and also that the taste of these fungi 

 varies with the locality ; thus R. sanguined is acrid in Central France 

 and scarcely acrid in the mountains. He concludes that there are 

 probably only about 15 really good species of Russula ; he deprecates 



* Luxemburg : P. Worre Mertens, 228 pp. 



t Flora von Deutschland. Gera : F. v. Zezschwitz, 1909, Lief. 70-2, pp. 81 

 128 (14 pis.). 



J Flora Ital. Crypt., i. fasc. 4 (1908) pp. 1-44 (57 figs.). 

 § Op. cit., fasc. 5 (1909) 139 pp. (S3 figs.). 

 || Bull. Soc. Mycol. France, xxix. (1908) pp. 230-45. 



