POLYPORUS. 



43; 



and liose. The privilege of collecting the tinder-fungi was 

 rented out and regarded as a source of forest-revenue, while the 

 tinder-industry was formerly an important one in many districts, 

 where sporophores were more frequent and larger than now. 



Measures against this fungus have already been considered 

 in our (Jeueral Part (§ 12). 



Fig. 2<>u. — PohiporuK /omenlarins on living Beech, a, A fuiTOW extending 

 above and below the insertion of the sporophore. 0, An injury produced by 

 tearing of the wood in foiling, (v. Tubeiif phot.) 



Polyporus sulphureus (lUdl.) ^ (liritain and U.S. America). 

 The sporophores are flat and soft, the upper side being bright 

 orange-red and the lower sulphur-yellow. They last only for 

 one year, lience are small ; they frequently occur in masses, 

 one above another in tiers. After death they lose colour, 

 become brittle, and are easily detached. According to De 



' R. Hartig, Zersetzruiiisevscheiinoif/en. A very coininon species in IJritaiii. 



(Edit.) 



