716 SUMMARY OF CURRENT RESEARCHES RELATING TO 



scorch (G I ososj^orium nervisequum) on plane leaves, and "brown rot"" 

 fungus {Sderotinia frudigena) on apple shoots. Directions are given as 

 to spraying, etc. 



Fungi of Spoiled Maize.* — Ugo Brizi has examined the moulds 

 that are found on spoiled corn, and has worked on the alterations that 

 are induced in the grain by the growth of the fungi. The consumption 

 of the diseased corn gives rise to the terrible disease Pellagra. The 

 fungus most frequently found associated with the maize is Penidllium 

 glaucum. It attacks the seed by the hilum and penetrates through a 

 small mass of spongy tissue at the extremity of the raphe. The myce- 

 lium does not pierce the cells : the growth is always intracellular ; the 

 protoplasm of the cells becomes disorganised on account of some toxin 

 secreted by the mycelium which traverses the cell-membrane. Other 

 fungi found on the maize, though in much less quantity, were Sterigma- 

 tocystis nigra, Mucor stolonifer, and M. rncemosus. These fungi could 

 be demonstrated by microscopical examination, l^ut it was only after 

 considerable time that there was any visible alteration of the maize. 

 The author discusses various aspects of the disease, and methods of 

 treating it or stamping it out. 



Endotropic Mycorhiza of the Vine.f — While examining the roots 

 of the vine to find out any alterations that might be due to the presence 

 of PJiglloxera, L. Petri was struck by the unusual development of 

 mycorhiza in all the plants attacked by the insect. No external 

 characters betrayed the presence of the fungus in the root. The 

 mycelium remains always a little behind the apical region. Petri 

 describes the action of the fungus on the plant, and the appearance of 

 the hypha3. 



American Goosebery Mildew.| — Under the Destructive Insects and 

 Pests Acts, the Board of Agriculture have issued an order requiring the 

 occupier of any premises on which there is a bush diseased or suspected 

 of being diseased, to notify the presence of the disease to the authorities, 

 when measures will be taken to stamp it out. Two cases of mildew have 

 been reported from Warwickshire. 



Abderhalden & Teruwchi. — Kulturversuclie mit Aspergillus niger auf 

 einigen Aminosauren und Peptiden. (Culture research with Aspergillus niger 

 on some aminoacids aud peptids.) 



Zeitschr. physiol. Chem., xlvii. (1906) pp. 394-6. 

 See also Bot. Centralbl., cv. (1907) p. 57. 

 Adams, J. A. — Irish Parasitic Fungi. 



[A list of species new to Ireland ; two of them, Claviceps Junci Adams and 

 Cicinnoholiis Ulicis Adams, are new to science.] 



Irish Naturalist, xvi. (1907) pp. 167-9 (4 figs.). 



d'Almeida, J. Yerissemo, & DE SouzA DA Camara, M. — Contributions 

 ad mycofloram Lusitaniae, (Contributions to Portuguese fungus flora.) 



Bev. Agron., iv. (1906) pp. 59-61, 83-5, 137-8, 221-2, 584-5 (3 pis.). 



See also Ann. Mycol., v. (1907) p. 184. 



* Atti Accad. Eeale Lincei, ccciv. (1907) pp. 890-98. 



t Tom. cit., pp. 789-91. 



X Jouru. Board Agric, xiv. (1907) pp. 300-1 and 371. 



