ZOOLOGY AND BOTANY, MICROSCOPY, ETC. 749 



Ernst Sehaffnit* has also studied this subject with special reference 

 to the different species of Merulius. He found specimens of Mend in* 

 on a post which he cultivated and found to correspond with M. domesticus, 

 though it grew in the open ; it retained the same characters for seven 

 years, and Sehaffnit concludes that the two species, M. domesticus 

 and Jt. Silvester, are well differentiated. 



J. Schorstein f has written on Merulius lacrymans and its allies. 

 He gives three leading species, M. lacrymans, M. pulverulentus, and 

 M. squalidus. He gives spore measurements, and notes that they do 

 not agree with those recorded by Falck. 



Key to the British Agaricaceae.J — H. J. Wheldon has drawn up a 

 key on the same system as that employed by H. N. Dixon in the Hand- 

 book of British Mosses. Instructions are given to the collector both 

 how to gather and how to examine the specimens. A key to the species 

 follows that to the genera. 



German Fungus Flora.§— W. Migula describes the genera and 

 species of the Auriculariales and of the Tremellineae, which finishes the 

 first division of Basidiomycetes. He then begins the second great group 

 of Autobasidiomycetes, divided into eight sub-groups, in which he in- 

 cludes the Gasteromycetes. Full descriptions are given of all the species. 

 Five coloured plates — irrespective of the text — are published with each 

 fascicle. 



Fairy Rings. || — Jean Massart finds that most of the cases of Fairy- 

 ring growths in Belgium are due to Marasmius oreades. He calls atten- 

 tion to the sterility as regards fungus growth of the ground enclosed by 

 the ring, and also points out that where two rings meet no fungi grow 

 at the point of contact. He argues from analogy with higher plants, 

 that probably the mycelium excretes some poison that is fatal to further 

 fungal growth, though not to the growth of higher plants. 



Notes on Larger Fungi. — Coloured plates % of two poisonous 

 Agarics are published by the Board of Agriculture. They are the well- 

 known Fly Agaric, Amanita muscaria, and a less common species, Lepiota 

 clypeolaria. Short descriptions of the fungi are given. 



H. Bourdot** has published a list of Corticeae from the Bourbonnais 

 and the Central Provinces of France. He remarks on the difficulty in 

 distinguishing and differentiating the species. Several new species are 

 described. 



Job. Buys tt has published a book on Dutch Fungi, De Paddenstoelen 



* Ber. Deutsch. Bot. Gesell., xxviii. (1910) pp. 200-2. 



t Oesterr. Bot. Zeitschr., lx. 3 (1910) pp. 112-14. See also Bot. Centralbl., 

 cxiv. (1910) p. 244. 



% Lancashire Naturalist, ii. (1910) pp. 335-8 (5 figs.), 361-4 (2 figs.) ; iii. pp. 23 -G, 

 53-6, 89-90, 119-22 (9 figs.). 



§ Flora von Deutschland, v. lief. 97-8 (1910) pp. 1-32. 



|| Ann. Jard. Bot. Buitenzorg, supp. 3, pt. 2 (1910) pp. 583-6. 



i Journ. Board Agric, xvii. (1910) pp. 387-8 (2 col. pis.). 



** Rev. Sci. Bourb. Centr. France, xxiii. (1910) p. 13. See also Ann. Mycol. viii. 

 (1910) p. 480. 



tt Gravenhage : M. Nijhoff (1909) 461 pp. (126 figs.). See also Ann. Mycol., viii. 

 (1910) p. 482. 



