

SPORES HYALINE. 



it should never have been confused. Fries, however, called it Poly- 

 porus nidulans, and thought that his species was thicker and had 

 larger pores. Berkeley generally used Fries' name, and under this 

 name the plant has been generally known in America. The plant, as 





Fig. 674. 



Polyporus rutilans. 



we found it in Sweden (rarely) is exactly the same plant as is common 

 in France. There is a chemical test for Polyporus rutilans. Touch it 

 with a little alkali (potash or ammonia) and it at once turns lilac. We 

 know no other species with this character. 



ILLUSTRATIONS. Saunders, S. & F., t. 45 (good). Persoon, Icon. & Desc., t. 6, fig. 3 (good); 

 and if Fries had access to this figure, which is not probable, as he miscites it, there would have been no 

 excuse for his renaming the plant Polyporus nidulans. Gillet (as nidulans) color much too pale. Bul- 

 liard, 482, not good. 



SPECIMENS. Many, Europe and United States. 



Compare nidulans, niveus, pallido-cervinus, ribicola, also Fomes Novae-Angliae. 



POLYPORUS CINNAMOMEUS. Pileus applanate, a cm. thick, with a thin, 

 smooth, reddish crust. Context thin, soft, isabelline. Pores small, round, regular 

 (now), dark isabelline. 



This, we believe, is a good species, but very rare and practically unknown in 

 Europe. There exists a single, authentic specimen which we noted for the first time 



335 



