312 THE JOURNAL, OF BOTANY 



his address by giving some delightful historical notes on the 

 Forest, and then takes up the subject of Mycetozoa, describing in 

 turn the methods of spore dissemination and germination, the life 

 of the swarm-cells, and the development and cytology of the Plas- 

 modium. A valuable paper is contributed by M. Emile Boudier, 

 an honorary member of the Society, entitled, " Quelques Kectiii- 

 cations et Observations sur les ' Illustrations of British Fungi ' de 

 Cooke/' The writer pays a high tribute to the excellence of the 

 plates and gives notes on many of the figures, on the nomen- 

 clature, form, and colour of the fungi. His remarks are replete 

 with interest to all who have worked with the " Illustrations." 

 The Editor has supplied, from his intimate knowledge of living 

 forms, a most helpful paper on " How to distinguish the species 

 of British Lycoperda in the field/' He takes up each character 

 in succession and lists the species under the different character- 

 groups. The paper is a decided boon to field-workers, who have 

 not found Lycoperdon an easy genus to deal with ; but it would 

 have been more readily helpful if it had been arranged in tabular 

 form. Papers by W. B. Allen on Trametes rubescens ; by A. D. 

 Cotton on British Clavarice ; and by Carlton Eea on Ozonium, 

 are also included, as well as the usual list of " Fungi new to 

 Britain." A number of these are also new to science, and have 

 been figured by Mrs. Carleton Rea, to whom the Society is again 

 much indebted. The present number .forms the close of the 

 second volume, and an index of this and previous parts is 

 appended, along with a list of members of the Society. — A. L. S. 



We have received lately some further communication on the 

 American Gooseberry Mildew. The Board of Agriculture have 

 issued a new leaflet (No. 195) representing with pen and pencil 

 the serious nature of the disease, and urging growers to be on the 

 look-out for the first symptoms of attack. " The disease," we are 

 told, " first appears as a delicate white mildew on the expanding 

 leaf-buds, extending later to the young wood and fruit." In 

 another paragraph : M The disease is of a very serious character, 

 and has rendered the culture of gooseberries unprofitable wherever 

 it has appeared, and in some cases even impossible"; but the 

 consoling statement is added, u In this country the fungus appears 

 to be mostly confined to the tips of the shoots." The Board of 

 Agriculture does not yet seem quite sure that the disease is very 

 harmful. A pamphlet by Mr. E. S. Salmon, The American Goose- 

 berry Mildew, issued by the South-Eastern Agricultural College, 

 speaks with no uncertainty. The author is fighting the apathy of 

 growers and of people with authority. His aim is to induce the 

 Board of Agriculture to carry out the following measures: (1) the 

 prohibition of all further importation of diseased gooseberry stock ; 

 (2) the compulsory destruction of all diseased bushes, compensa- 

 tion being paid where necessary. Mr. Salmon again describes the 

 appearance of the disease, and gives advice to those growers whose 

 bushes have been attacked already. 



We have received the Eeport of the Watson Botanical Ex- 

 change Club for 1906-7, from which we hope at a future date to 

 publish some extracts. 



