ZOOLOGY AND BOTANY, MICROSCOPY, ETC. 513 



and with the allied genera Phseodon, A maurodon, and Hericium, followed 

 by Irpex and Sistotrema. A beginning is made with Polyporacea), and the 

 first genus, Merulius, is partly described. 



Fungi in the Rhizoids of Leafy Hepatics.* — A. J. M. Garjeanne 

 has examined a large number of these hepatics, and gives in tabular 

 form the results of his observations. He also made cultures of the 

 fungi and culture experiments, all of which are explained in detail. He 

 sums up the general results thus : — 1. The appearance of fungi in the 

 roots of foliose hepatics is of common occurrence though not constant, as 

 the same species may have hyphre in the rhizoids, or may be free from 

 hyphas, and the fungi may belong to various species. 2. In some 

 hepatics (Calypogeia trichomanis, Lophozia inflata, etc.) the fungus forms 

 haustoria, which pierce the neighbouring green cells, in others {Cepha- 

 lozia bicuspidata and G. connivens) the hyphas form compact clumps on 

 the tips of the rhizoids (fungus-galls). 3. In Lophozia inflata the fungus 

 forms thickenings of cellulose and glycogen when it enters the rhizoids, 

 and these thickenings tend to retard the progress of the fungus. 



The author could not find that any benefit resulted from the presence 

 of the fungus, and harm is certainly done to the host-plant. The 

 infection takes place by way of the soil ; the chlorophyll cells are not 

 easily invaded, and one will be packed with hyphas before the neighbour- 

 ing cell is entered. Garjeanne isolated and determined a Mucor which 

 occurs very frequently, nearly allied to M. racemosus, which he names 

 M. rhizophilus. It forms large chlamydospores. 



British Mycology. f — The spring and summer fungus forays of the 

 British Mycological Society were held in the neighbourhood of Wrexham, 

 and descriptions of the day's proceedings and more important collections 

 of fungi are given, together with lists of all the fungi and mycetozoa 

 observed during the forays. Harold Wager, the President of the Society 

 for the year, gave an address on the problems which arise in connexion 

 with the morphology and physiology of fungi. 



A new fungus was sent by W. L. W. Eyre to G. Bresadola, who 

 determined it as new, and describes it as Poria Eyrei. 



A. D. Cotton publishes a correction, Glavaria straminia having been 

 figured in a previous number of the Transactions as C. persimilis. A 

 description and detailed account of C. straminia is given, with notes on 

 some other Glavarise. 



W. N. Cheesman observed and collected fungi and mycetozoa in the 

 Rocky Mountains, on the occasion of his visit there along with members 

 of the British Association. He describes the localities and conditions 

 of growth, and gives lists of the plants observed. 



A. D. Cotton publishes notes on recent work done on Goprinus, being 

 a summary of Buller's work on that genus published in researches on 

 fungi. The function and importance of cystidia in connexion with spore 

 dispersal are chiefly dealt with. 



E. M.Wakefield gives some interesting and useful notes on the ana- 

 tomical structure of Grandinia, a little-known genus. In G. mucida she 



* Flora, cii. (1911) pp. 147-85 (2 pis. and 9 figs.). 



t Trans. Brit. Mycol. Soc, iii. pt. 4 (1911) pp. 233-89. 



