PHOLIOTA 359 



sclerotia are produced in the tissues of the plant ; these are 

 more or less globose. 



Cap white, becoming tinged rufous, eccentric, soon 

 plane, with deep grooves, |-| in. diam. Gills distant, con- 

 nected by ridges ; stem, J-f in. long, forming a small pale 

 sclerotium in the tissues of the host-plant. 



The only effective remedy is the removal and burning of 

 diseased plants. If these are allowed to remain and decay, 

 the numerous sclerotia are liable to infect other plants. 



Massee, Text-Book of Plant Diseases, p. 206 (1903). 



Marasmius sacchari (Wakker) has been proved by experi- 

 ments to be a true parasite on sugar-cane in Java. 



Wakker and Went, Zsikt. van het Sinkerriet op Java, 

 p. 194. 



SCHIZOPHYLLUM (Fries.) 



Pileus very thin, dry ; gills dry, branched, edge split open 

 longitudinally. 



Schizophyllum commune (Fr.). Is said to be parasitic on the 

 sugar-cane in the West Indies. It has also been recorded 

 as doing injury to the horse-chestnut and mulberry in France. 



This species is rare in England, but I once found it 

 growing on the living trunk of Alnus gluthwsa, near Scar- 

 borough. 



Pileus very thin, fan-shaped, greyish-white, often lobed, 

 downy, 1-2 in. broad; gills pale brown with a tinge of purple, 

 split portion of gills recurved ; spores dingy, 4-6 X 2-3 /x. 



Guegen, Bull. Soc. Myc. France, 17, p. 238. 

 Prillieux and Delacroix, Bull, du Minis tere de tAgric, 

 No. 5, Sept. 1893. 



PHOLIOTA (Fries.) 



Pileus symmetrical, more or less fleshy ; gills adnate, 

 becoming rusty at maturity ; stem central, with a distinct 

 ring. 



Slimy tree agaric (Plioliota adiposa, Fries.) is not un- 

 common as a saprophyte, and is also abundant as a wound- 

 parasite on various broad-leaved trees, also on conifers. 



