ZOOLOGY AND BOTANY, MICROSCOPY, ETC. 87 



G. v. Tubeuf * has also followed the life-history of Lophodermium 

 Pinastri, a parasite on pine-needles. It is connected with small Hack 

 pycnidia that produce innumerable colourless spores. Inoculation 

 experiments were unsuccessful. 



Frombling | has also written on diseases of Conifers which have 

 become so prevalent in recent years. As to larch disease, he considers 

 that the tree has been taken from its native surroundings and planted 

 often in rich soil, which induces quick and luxuriant growth, but also 

 renders it more open to attack. He also accuses the constant re- 

 planting of pines in one locality of having a weakening effect on the 

 tree. Much depends on the source from which seed is procured. He 

 recommends procuring seed where possible in the country itself, as the 

 trees grown from native seed will be better fitted to meet native condi- 

 tions. 



K. Stormer $ seeks to prove that cherry disease, said to be due to 

 Valsa leucostoma, apple disease to Gytospora piricola, and potato-leaf 

 rolling to VerticilUum alboatrum or Fusarium, are all really caused by 

 the same organism, some endogenous bacterium. Incidentally the 

 author has proved the existence of bacteria in healthy plants. 



E. Vinet § traces a disease of vines in Anjou to the presence of 

 fungus mycelium in the tissues, which had destroyed the wood and the 

 bark. Stereum hirsutum and Polyporiis versicolor both grew on the 

 diseased trees. P. igniarius has also been regarded as the cause of 

 the malady. 



A. Moller j| gives advice as to fighting the disease of Conifers due 

 to Trametes Pint. In general, care should be taken to root out all 

 stumps of felled trees, and to destroy the fruiting bodies of the fungus 

 that have developed on any trees that must be left standing. Infection 

 takes place through the ends of cut branches and through wounds in 

 the bark. The most fatal time for the tree is between fifty and seventy 

 years of age. 



P. Magnus % records a disease of rhubarb caused by a Peronospora. 

 It forms spots on the leaves, the diseased portions ultimately falling 

 out, and the mycelium in them, owing to abundant glycogen contents, 

 is able to persist as resting mycelium, and reinfect new leaves. 



Bataille, P. — Champignons rares ou nouveaux de la Franche-Comte II. (New 

 or rare fungi from Franche-Comte.) 



[Complete descriptions are given of all the species.] 



Bull. Soc. Mycol., xxvi. (1910) pp. 330-48. 



* Naturw. Zeitschr. Forst.-Landw., viii. (1910) pp. 408-11. See also Ann. 

 Mycol., viii. (1910) p. 578. 



t Forst. wiss. Centralbl., xxxii. (1910) pp. 193-200. See also Centralbl. Bakt., 

 xxviii. (1910) pp. 275-6. 



t Jahresb. Ver. Angew. Bot., vii. (1910) p. 119. See also Centralbl. Bakt., 

 xxviii. (1910) pp. 278-9. 



§ Rev. Vitic. xxxii. (1909) pp. 676-81. See also Centralbl. Bakt., xxviii. (1910) 

 p. 282. 



|| Zeitschr. Forst. Jagdw., xlii. 3 (1910) pp. 129-46. See also Bot. Centralbl., 

 cxiv. (1910) p. 547. 



1 Ber. Deutsch. Bot. Gesell., xxviii. (1910) pp. 250-3 (1 pi.). See also Bot. 

 Centralbl., cxiv. (1910) pp. 595-6. 



