ZOOLOGY AND BOTANY, MICROSCOPY, ETC. 487 



named species, and descriptions of new ones. The new genera are : — 

 Dim&rosporiella (Hypocreaceae), TreuMoryyces (Nectriaceaa), Bombardiella 

 (Sordariaceae), Pseudorhynchia (Ceratomieae), Mycoglsena (Ostropese), 

 Apiosphseria (Hyponectrieae), Lecideopsella and Agyronella (Agyriese), 

 Sclerophoma (Sphaeropsideae), and Linodochium (Tubercularieae). 



In a further paper * he continues his study of species, chiefly of 

 microfungi, and again he determines a number of new genera : Vale- 

 toniella (Trichosphaeriaceae), Goronophorella (formerly Enchnod), Hy&t&ro- 

 dothis, Phseockora, and Goccochora (formerly included in Auerswaldia), 

 Gyclodomus and Phaeodomus (Sphyerioideas), and Sir ozytl delict (Nectrio- 

 ideas). 



Fungi of the Clyde Area.j — D. A. Boyd gives a descriptive list of 

 fungi which are new to science, or new records for Britain. With one 

 exception, Erinella pommeranica, they were all collected by the author. 



A note is also published % of the fungi collected at Ardlamont, 

 Ardgowan, and Shilford Wood in September and October of the previous 

 year. The lists included from Ardgowan thirty-five Plymenomycetes, 

 and from Shilford Wood twenty-six Hyinenomycetes, three Gastro- 

 mycetes, and thirty-five microfungi. 



Breaking up of Cyanamides by Fungi. § — II . Oappen has proved 

 that five different filamentous fungi have the power to break up cyan- 

 amides, very little organic nourishment being required in the process. 

 The reaction of the poison on the fungi varied for the different species ; 

 in some cases the fungi developed, while it destroyed 2 p.c. of the 

 cyanamide in culture medium ; with other species all growth stopped 

 above 1 p.c. of the mixture. The research also touched on the forma- 

 tion of urea and the breaking up of calcium nitrates in the soil. 



Text-book of Plant Diseases. || — The increase of study and know- 

 ledge about fungoid plant diseases has necessitated a new and enlarged 

 edition of the text-book issued by G-. Massee. In this volume he 

 includes foreign as well as British plants, and has thus widened the 

 scope of the book. In addition to fungoid diseases he touches on mal- 

 formations, injuries by frost, insects, etc., and gives directions as to the 

 use of fungicides. The book will be found to be indispensable to all 

 engaged in the cultivation of plants. 



Phytophthora Disease of Pears. IT — Fr. Bubak describes the occur- 

 rence of Phytophthora cactorum Leb. ( = P. omnivora I)e Bary) on 

 pears. The fruits were discoloured, and on microscopic examination 

 were found to be attacked by the Phytophthora. The flesh of the 

 pears remained hard, but was turned to a brown colour about a centi- 

 metre in depth below the skin, and gradually shrivelled up ; the 

 oospores were found in the tissues, the sporangia on the surface. Bubak 

 recommends careful destruction of all fallen fruit. 



* SB. Akad. Wiss. Math.-Nat. KL, cxviii. (l'JO'J) pp. 1461-1552 (1 fig.). 

 t Glasgow Nat., i. (l'J09) pp. 110-15. ' J Tom. cit., pp. 139-40. 



§ Ccntralbl. Bakt., xxvi. (1910) pp. 633-43. 



|| Diseases of Cultivated Plants and Trees. London : Duckworth and Co. 

 (1910) viii. and 602 pp. (171 figs.). 



1| Zeitschr. Ptlanzeukr., xx. (1910) pp. 277-61 (1 pi. and 2 figs.). 



