HISTORY. This is practically the same plant as the preceding, having the 

 same dull color, and appearance and differs only in having larger pores. The 



v - -., 7* 



i t 



Fig. 202. 

 Polystictus proliferus. 



Fig. 203. 

 Polystictus focicola. 



Perennis. Fig. 204. 



Contrast of pores enlarged x6. of Polystictus pereuni 



Focicola. 

 id Polvstictus focicola. 



extreme forms are marked in the difference in the size of the pores but inter- 

 mediate forms occur that are hard to refer. It is a southern plant and the most 

 common form in the South and is not known from Europe. The most northern 

 station known to me is Brewerton, N. Y. 13 It usually grows on burnt ground. 

 The plant has generally and erroneously been known in American mycology as 

 Polystictus parvulus (See note 9 p. 7.) based on Berkeley's work. Polystictus 

 counatus of Schweinitz, also usually referred to it as a synonym is an error (See 



13 Mr. Murrill correctly gives its distribution as "confined to states south of Massachusetts" 

 and then copied the usual error and referred it to Polystictus parvulus which Dr. Richardson 

 collected in Arctic America. 



There is no exact locality on the label, but Richardson was the botanist of the Franklin 

 expedition to the north pole and collected his plants "from Hudson Bay to the Polar Sea." 

 Polystictus parvulus was collected without question much nearer the Arctic circle than any 

 "state south of Massachusetts." 



14 Or Polyporus to be accurate, but Polystictus having come into general use for a section 

 of Polyporus since that date I use the two names in the present sense. The same remark will 

 always apply to my use or rather non-use of all the recently juggled names. (See Note 2, page 

 342). 



10 



