494 SUMMARY OF CURRENT RESEARCHES RELATING TO 



far on one monocotyledonous host ouly, Asparagus Sprengeri. It can 

 be distinguished from R. crocorum by the form of the mycelium, 

 sclerotia, etc., and it is readily culturable. The perfect stage is 

 Cortkium vagum. An extensive bi i )liography accompanies the test. -[^ 



Agaricaceae.*— W. A. Murrill has just issued Part 5, vol. ix., of the 

 North American Flora which includes a consideration of several genera 

 belonging to his subtribe Lepiotante. There is a synoptic key to the 

 genera and also to the species, which are fully described. The genera 

 have nearly all received new or ancient names, which has necessitated a 

 multitude of new combinations. Many new species in the different 

 genera are also described for the first time, most of them so far from 

 one locality only. The Flora includes that of the West Indian Islands. 



Studies in Polyporaceae.t — L. 0. Overholts publishes a short 

 account of the family, its history, microscopic characters, his methods of 

 working and examining the plants, and a detailed account of a number 

 of species belonging to Polyporus, and Fames, paying particular 

 attention to the hyphas, spores, etc. 



Fungi Exotici.J — W. B. Grove publishes a large number of fungi 

 new to science that have been determined, mostly by E. M. Wakefield. 

 They were collected in Tropical Africa, Nigeria, Uganda, etc., and in 

 India, etc. One of them, Polyporus Shoreae, is suspected of being the 

 cause of a serious disease called " Sal" ; the effect on the trees on which 

 it is parasitic is somewhat similar to that of Trametes Pini. 



HydnochsBte and some Rare Fungi. § — C. G. Lloyd does not 

 regard Hydnochsete as a good genus, and would prefer to classify its 

 four species as a section of Hynienochsete— it is really a tubercular 

 Hymenochaete or a Grandinia with setae. 



Among the rare species Lloyd describes are Radulum Ballonii, a 

 pileate form with hard and woody texture ; Mycocitrus aiirantium, a 

 giant member of the Hypocreacea3, grows on living branches without 

 apparently being parasitic; Hydnangium Ravenelii, received from 

 Alabama, grows on the surface of the ground, while other species of the 

 genus are hypogaeal. 



New or Noteworthy Fungi. |1 — A series of species new to science 

 or new to this country are published by W. B. Grove, with descriptions 

 in all cases. They belong mostly to the Fungi Imperfecti, and five are 

 new species, including one Pyrenomycete, Sordaria coronifera, collected 

 on dung at Earlswood near Birmingham. 



* North Amer. Flora, ix. pt. 5 (1916) pp. 297-374. 



+ Ann. Miss. Bot. Gard., ii. (1916) pp. 667-724 (3 pis. and 8 figs.). 



I Kew Bull., No. 3 (1916) pp. 71-7 (1 pi. and 3 figs). 



§ Mvcol. Notes. Cincinnati, Ohio, No. 41 (1916) pp. 557-72 (1 pi. and 6 figs.). 



II Journ. Bot., liv. (1916) pp. 185-93. 



