643 



Stockholm, a form (pholo 1571 on Ihis page) ^vhich had a number 

 of dislincl rellex pilei up lo 2 cm. broad in radial direction. IJesides 

 these pileate specimens theie grew on the same slub also partly or 

 totally resupinate specimens. The surface of the reflex part beco- 

 mes lastly glabrous. — I should add that the spores of this collec- 

 tion are a litlle smaller Ihan staled in Ihe description, viz. 3 — 4 V2 

 X 1 \i' — 2 // and generally oblique and 1 guttate.^) 



Fig. 4. Polyporus sericeo-mnllis. The figure shows both resupinate, and partly 

 reflex, and totally reflex specimens. 



Neither this coUection nor that from Lappland show any hint of 

 a ptychogastric state. And I am still not fuUy satisfied that the 



') Since the above was written, I have made two other eollections (on rotten 

 fence-rails in Bromma near Stockholm) containing mostly resupinate specimens which 

 are so exactly like Pol. sericeomollis that I would not have hesitated to swear to 

 tho identity. But together with these resupinate specimens there occur in one of 

 the eollections also reflex ones, some of which are purely white and like those of 

 photo ir)71, while others are a little greyish above and subzonate and radially sub- 

 rugose just as in specimens which I have hitherto referred to Qiklets Pol. flori- 

 formis. In all these specimens (both resupinate and reflex) the spores are subcyliu- 

 diic or suballantoid 4V2 — 6 ( — 7) X l\i( — 2) fx. If all these recent eollections and all 

 these specimens really belong to Pol. ser iceo- mollis, this species seems to be very variable. 



