b 



586 SUMMARY OF CURRENT RESEARCHES RELATING TO 



mass. On one such mass, twenty-three pilei of Lentinus were found. 

 They differed in the stages of development, but they arose chiefly from 

 the bark that still adhered to the sclerotium on which they were situated 

 at the junction of the bark and the wood. 



Fetch discusses the question of sclerotia in Lentinus, etc. 



Descriptions and Illustrations of American Fungi. — W. A.Murrill* 

 has issued coloured figures of five Amanitas that occur in America, with 

 scientific descriptions and notes. Murrill gives not only his own new 

 names for these plants, but the names by which they are known 

 throughout the world. A special note of warning is given concerning 

 the poisonous Amanita phalloides. 



F. J. Seaver f has published a photographic plate and a description 

 of Peziza clypeata. The species was originally described by Schweinitz 

 from N. Carolina. It varies in size from ?> to 4 cm., and in colour 

 from reddish^brown to greenish-black. The plant has been named and 

 renamed many times. It grows on damp logs. 



New Species of Micromycetes. — Elisa Mutto % has determined a 

 number of new parasitic fungi on exotic plants grown in the botanical 

 garden at Pavia. These are Phomopsis DipJoglottidis, on leaves of 

 Diphu/Jottis ; another, Phomopsis Briosii, on leaves of Roupala nitida ; 

 a GoniotJiijrium, on the cladodes of Ruscus Hypoglossum ; and Geu- 

 thospora PoUaccii, on a dead stem of Chamsedorea elegans. 



In the fourth contribution to the "Micologia Ligustica," Luigi 

 Maffei § publishes descriptions and figures of four new species of micro- 

 fungi on the leaves of various plants : Phomopsis Cocculi, Macrophoma 

 Cinnamomi-gJanduUferi, Macrophoma Yuccse and Phospora Briosiana, 

 the latter a parasite of Bignonia huccinatoria. 



Mycological Notes. |] — C. G. Lloyd publishes notes on a series of 

 rare fungi that have been sent to him for identification. They include 

 Cordyceps soholifera from Japan, which develops on the Cicadidse, and 

 was first recorded from the West Indies ; a rare species of Sehacina, 

 with cruciate basidia ; Cytarria Gunni, a fungus of the southern 

 hemisphere used as food by the natives of Terra del Fuego ; and 

 Htjpoxylon cerebrinwn, a very large species from Trinidad, originally 

 named by Fee, from Brazil 'specimens. A number of other unusual 

 basidiomycetes are also included in the notes. 



Studies of the Physiology of Parasitism. — II. Ir^fection hy 

 Botrytis cinerea. — V. H. Blackman and E. J. Welsford If here record the 

 results of culture experiments in the parasitism of Vicia Faba by 

 Botrytis cinerea. The spores were grown in drops of turnip juice on 

 the leaf of the bean. After germination the spore tube becomes 



* Mycologia, viii. (1916) pp. 231-4 (1 pL). 

 t Myc^.logia, viii. (1915) pp. 235-8 (1 pi.), 

 t Atti 1st. Bot. Pavia, xvi. (1916) pp. 205-7 (1 pi.). 

 § Atti 1st. Bot. Pavia, xvi. (1916) pp. 225-43 (1 pL). 

 li Cincinnati, Ohio, 1916, pp. 574-88 (pis. and figs.). 

 ^ Ann. Bot., xxx. (1916) pp. 389-98 (1 pi. and 2 figs.). 



