PORES WITH THIN WALLS. 



FOMES LACCATUS (Fig. 603). Pileus thick, applanate, with 

 uneven, dark reddish brown, strongly laccate crust. Context dark 

 brown (bay brown). Pores minute, long, with brown tissue and 

 yellow mouths. Spores truncate, obovate 6x12, with punctate 

 surface. 



This is a European species unknown elsewhere. Except as to its thick, laccate 

 crust, it is similar to Fomes applanatus, but the pore layers are thicker (1> to 2 cm. 

 thick), the pore mouths yellow, and the plant is evidently of rapid growth. It occurs 

 only on beech as far as we know. It was not included in Fries' work, hence there is 

 hardly a definite tradition concerning it in European mycology. I have not seen 

 any of Kalchbrenner's specimens, but he gave a good name to it, Fomes laccatus, 

 and a good description, excepting he described the spores as globose and hyaline, 

 which was a slight discrepancy, considering it was Kalchbrenner. It is not a rare 

 plant in England. Cooke distributed it years ago as Fomes applanatus, and Plow- 

 right sent it to Rabenhorst, who also distributed it. There is no evidence that Berke- 

 ley ever knew it. Quelet met the plant and sent a specimen to Fries labeled Fomes 

 flaviporus, but it was never published under that name. His specimen also reached 

 Cooke, labeled Fomes resinosus, attributed to Schrader's vague description, which 

 does not entirely agree. Quelet so published it, and cites Rostkovius t. 34, an 

 evident error. Bresadola at first followed Quelet, but afterwards described it as a 

 new species Fomes Pfeifferi. We believe, on the sacred laws of priority, it should 

 be called Fomes resinosus (Schrader-McGinty), it being the only plant in Europe 

 that answers at all to the original "description" of this much-bandied species. 



SPECIMENS. We have about twenty collections, all from Europe. 

 Compare flaviporus, Pfeifferi, resinosus. 



Fig. 604. 



Fomes annularis. 



267 



