iU 



BASIDIOMYCETES. 



Sporophores annual,, occuri'ing from spring to autumn ; at first 

 tender and fleshy, later leathery or almost woody. In form 

 they are short-stalked, flat, semi-circular or kidney-shaped, and 

 attached by one edge ; they may also be stalked and circular 

 or cup-shaped. Their upper surface is yellowish, with flat brown 

 scales arranged in concentric lines. The hymenial layer is 

 continued well on to the thick fleshy stalk of the sporophore ; 

 it is yellow in colour, and consists of short angular pores. 





Fio. 270.— Po/-. 



ncs of living Ash. (v. Tubenf phot.) 



The spores are spindle-shaped and colourless. The fungus is 

 especially common on living hazel, ash, species of maple, beech, 

 mountain ash, horse-chesnut, elm, oak, willow, pear, lime, etc. 



The wood of the specimen in Fig. 275 exhibited extensive 

 white-rot, the inner parts being completely converted into a 

 soft white sjxiiigy mass of mycelium. 



Polyporus hispidus (Bull.).^ (Britain and U.S. America.) 

 Sporophores annual, soft and spongy, with a rough brown upper 



'A very common form on ash trees in liritain. (Edit.) 



