ZOOLOGY AND BOTANY, MICROSCOPY, ETC. 753 



of which it is a destructive parasite. The fungus attacks leaves of 

 more or less weakened vegetation. Those of the current year are usually 

 free from the parasite. The needle is penetrated through and through 

 by the mycelium, which induces the formation of resin and tannin, and 

 causes brown or black spots and rings on the surface. The attack 

 occurs usually in May. but the perithecia of the fungus do not mature 

 until the following May. The ripening of the spores may be delayed 

 until September, or even till the following spring, and in that case the 

 development of the fungus lasts more than a year. 



F. A. Wolf* describes a leaf-blight of the American Mistletoe 

 (Ptioradendron Jiavescms). The disease manifests itself by chlorosis of 

 parts or the whole of the leaf, then the affected foliage becomes dark 

 brown and dead. The pycnidia of the fungus, Marrophoma Phoradendri 

 sp.n. are scattered on both leaf surfaces. 



Leaflets have been issued by the Board of Agriculture giving in- 

 formation about various diseases : — 



1. As to cucumber and tomato canker f caused by Mycosphaerella 

 citrullina, first indicated by the wilting of the leaves. The fructification 

 of the fungus is to be found on the nodes of the stem. Thorough 

 spraying with Bordeaux mixture checks the disease. 



2. Leaf -shedding in Conifers J due to Botrytis cinerea is described, 

 also making its appearance in yellowing leaves. Leaves and shoots 

 attacked fall to the ground. Spraying is recommended, and the de- 

 struction of dead leaves, etc. 



3. Leaf -disease of celery § is figured and described. It is due to a 

 minute fungus, Phyllosticta Apii, which forms blotches on the leaves, at 

 first a dull brown, later somewhat paler. The disease appeared in 

 Sussex in 1909, and caused much damage. 



Max Britzelmayr.|| — This fungologist and lichenologist died at 

 Augsburg in December 1909 at the age of 71 years. He was a teacher 

 by profession, but devoted much of his spare time to the study of the 

 Fungi and Lichens of Bavaria. A note on his life and work, with a list 

 of his publications, is published by L. Gerstlauer, with a photograph. 



Boyd, D. A. — Microfungi observed at Traquair and Roslin. 



[A list of seventy species found and determined by the collector.] 



Trans. Edinburgh Field Nat. Soc., vi. (1909) pp. 149-52. 



Bourdot, H., & A. Galzin — Hymenomycetes de France. (II. Homobasidiae : 

 Clavarise and Cyphellse.) 



[Seventy-four species are described.] 



Bull. Soc. Mycol. France, xxvi. (1910) pp. 210-28. 



Bubak, F. — Fungi in Ergebnisse einer botanischen Reise in das Pontische 

 Randgebirge. (Fungi " in the results of a botanical journey in the Pontische 

 Randgebirge.") 



[Many new species are described, and one new genus, Chsetastcrina (Micro- 

 thyriacese). ] Ann. k.k. Nat. Hist. Hofmus. Wein, xxiii. (1909) pp. 101-7. 



See also Bot. Centralbl., cxiv. (1910) pp. 243-4. 



» Mycologia, ii. (1910) pp. 241-4 (1 pi.). 



t Board of Agriculture and Fisheries, Leaflet No. 230 (1910) 2 pp. (pi.). 

 J Op. cit., No. 234, 2 pp. (pi.). § Op. cit., No. 238, 2 pp. (6 figs.). 



|| Ber. Bay. Bot. Ges., xii. (1910) pp. 69-72. 



