1908.] 125 



the apex, thus differing from D. agilis and its variety limaculatm, 

 Dej., which have sever;)] pores on this interstice, as well as the row on 

 the seventh. D. fenestrntus, F., is another form that might be expected 

 to occur in the northern part of Iritain, and I have seen examples 

 of D. meridional i< from the New Forest that have been incorrectly- 

 referred to it. 



Horsell : May UU, 1908. 



NOTES ON THE GENUS CORTICARIA. 

 BY NOKMAN II. JOY, M.E.C.S., F.E.S., AND J. E. LE B. TOML1N, M.A., F.K.S. 



In his introductory notes on Corticaria Canon Fowler remarks 

 " that we possess, in all probability, two or three more species in 

 collections than the eight or nine at present recognised as British." 

 He particularly mentions C. linearis, Payk, and G. longicollis, Zett. 

 as likely to occur, and indeed instances specimens standing under 

 G.fulva, Com , in Dr. Sharp's collection, which are perhaps referable 

 to C. longicollis. The C. linearis of the Stephensian collection = 

 C. ferruginea, Gyll. (teste G. R. Waterhouse) = C. fenestrate, L. 

 Both these species we are now able to instate definitely on the British 

 list, bringing the total of the genus up to twelve. We can find no 

 evidence of the true C. obscura, Bris. having been taken in Britain, 

 most of the specimens recorded as such having proved to be G. eppels- 

 hrimi, Eeitt., so that (including G. crenicollis, Mannh., recorded in 

 Ent. Becord, vol. xviii, p. 276), there are four species to be added to 

 the list given by Fowler, and one to be deleted. 



The following are the records for these four species, so far as we 

 have been able to ascertain : — 



G linearis. — Brad field, two specimens (Joy). 

 G. eppelsheimi.— "Woking ("common in powdery fungi on fir 

 stumps during one season only ") and New Forest (Champion). 



G. longicollis.— Richmond Park (Rye and Champion) ; Epping, 

 under bark (Pool, who first drew our attention to this species ; it was 

 recorded as G. crenicollis in Ent. Record, ibid.) ; Malvern, in cellar, and 

 Sherwood, under bark (Tomlin). 



C. crenicollis. — Farnham (Power) ; Peckham (ex coll. Chaney) ; 

 Basildon, Berks, in dry oak branches (Joy) ; Chiddmgfold, in moss in 

 company with ants (Donisthorpe). 



