346 SUMMARY OF CURRENT RESEARCHES RELATING TO 



truffles, agarics or puff-balls take any share in forming the mycelial 

 sheaths round the young roots. He concludes that though the mycor- 

 rhiza is harmless it is of no positive advantage to the host-plant. 

 Nemec * has studied the same question as regards the hepatics. 



British Mycology.t — An account of the autumn fungus foray of 

 the British Mycological Society is given by Carleton Rea, with a list 

 of the fungi collected during the foray week in Savernake Forest. 

 W. L. W. Eyre gave the presidential address on "Mycology as an 

 instrument of recreation." Arthur Lister contributes an account of the 

 mycetozoon Echinosteliwn mimdum which was collected by a member of 

 the Society at Hereford, the first record for Britain. 



A. Lorrain Smith describes two new forms of disease caused by 

 fungi : Glaosporium Tilm, which attacked the petioles of the leaves of 

 the lime, causing them to fall in the early summer, and Septoria fraga- 

 rice, which had passed from the strawberry leaves to the fruit, and spoiled 

 a whole crop. She also publishes notes on imperfectly described micro- 

 fungi. Carleton Rea chronicles the finding of two new Phalloidere in 

 Europe, Lysurus austral iensis, found in Worcestershire near a mill 

 where refuse and dirt from Australian wheat-bags had been thrown, and 

 Anthurus borealis, which was found in a field of asparagus at Mecklen- 

 burg, in Germany. The same author, with A. Lorrain Smith, publishes 

 the list of fungi added to the British flora during the preceding year. 

 Diagnoses are given of species not previously published, or that have 

 been only imperfectly described. 



French Mycology.f — Em. Boudier describes a new genus of Myri- 

 angiacece, Guillermondia, a minute fungus measuring about ^ mm. in 

 diameter, occurring as little black points on horse-dung. The spores 

 become dark coloured when mature, and remain in groups of eight after 

 the ascus has disappeared. 



The same writer § describes a sterile form of Hijdaum erinaceum. 

 No hymenium was formed on the teeth. Sporules, or conidia, were 

 found, but they were not borne on basidia. 



Paul Vuillemin |] describes a new genus SpineUa, which he places 

 among the Mucorinese near to Dispira. The fungus, which seemed to 

 be parasitic on Mucor, forms a swollen head at the top of an upright 

 sporophore from which arise elongate spore-like projections, each bearing 

 a spore of similar appearance. The whole plant is colourless or 

 yellowish. 



M. Prillieux^f describes the dehiscence of the perithecia of Kosellinia 

 necatrix, a dangerous parasite of the roots of the vine. The paraphyses 

 and asci become mucilaginous, and the spores escape in drops of mucilage 

 by the splitting of the perithecial walls at various points. 



B. Souche ** has observed a new form of Ganthardlus cibarius. It 

 is paler in colour than the well-known species, the cap is thinner, the 



* See ante-, p. 328. 



t Trans. Brit. Myc. Soc.for season 1903 (1904) 67 pp., 3 col. pie. 



{ Bull. Soc. Mycol. France, xx. (1904) up. 19-22 (1 pi.) 



§ Tom. cit. pp. 23-5. || Tom. cit., pp. 2G-33 (1 pi.). 



% Tom. cit., pp. 34-8 (2 pis.). ** Tom. cit., 39-49. 



