JOURNAL OF TUP: ROYAL HORTICULTURAL SOCIETY. 



TlNDEli POLYPOBB. 



Fomcs fomentarius (Fries). 



It is strongly contended by some writers that the wcody Polypores 

 which are common mostly on forest trees will attack fruit trees as 

 wound parasites, and ccmpass their destruction. One species is found 

 sometimes on fruit trees, which become as hard as a wooden log. In 

 shape it somewhat resembles a horse's hoof, with a smooth upper surface 

 of a dark brown colour attached firmly by the back, so as to project like 

 a bracket. The under surface is almost flat, or a little concave, pale, and 

 punctured with minute pin-holes or pores close together all over the 

 surface. These pores contain the spores, which are snuff-coloured and 



Fig. 9. — Fomks fomentarius. 



profuse, so that they.fall when mature on all surrounding objects like snufl'. 

 This LB a wound parasite, the spores rinding an entrance into its victim 

 tree through a wound, and afterwards developing on the surface. 



One of these wound parasites is Fomcs fomentarius, which is common 

 on Beech trunks and occasionally on fruit trees. All such fungi should 

 lie cut away and the wound dressed with gas tar. (Fig. 9.) 



The woodcut is not by any means a good characteristic figure. 



Sacc. Hull, Hym. ii. 5409; Cooke Hdbk. No. 776; Journ, R.H.S. 

 xxvi. (l<)02)/i>. 731, fig. 308 ; Mass. PL Dis. 185, 392. 



ClTIUlANT-LEAF SPOT. 



Srp/nnn nhis (Desm.), PI. XII. fig. 31. 



Thia spoi appa*re to be confined to the living leaves of the Black 

 Currant, and is certainly common enough. The spots are small and 



