No. 3.] HYMENIALES OF CONNECTICUT. 57 



are quite distinct, but the varying specific characters are so 

 confusing that the plants are exceedingly difficult to classify. 

 Dr. C. H. Peck has probably done more careful work on this 

 genus than has any other American mycologist, and his illus- 

 trations and keys, published in " Reports of the New York 

 State Botanist," are valuable. Anyone especially interested in 

 mushrooms should have his reports, for his long experience 

 with the fleshy and woody fungi has given him a standing 

 foremost among mycology students. The writer considers it 

 fortunate that he was enabled to have Dr. Peck examine the 

 specimens collected for the Survey herbarium. No doubtful 

 species have been reported. 



The greater number of the plants in the genus grow on the 

 ground, mostly in woods, and occur in large numbers, es- 

 pecially during damp weather. The caps and stems are fleshy, 

 quickly decaying, and are frequently attacked by larvje. They 

 are eagerly devoured by cattle, and the writer spent an inter- 

 esting hour feeding the different species to a herd of cattle. 

 They eagerly devoured them all, even the intensely bitter B. 

 felleus, at the same time positively refusing the peppery Lac- 

 tarius. 



Many of the species exhibit characteristic changes in col- 

 oring when the flesh is wounded, and these characters are of 

 valuable assistance in their identification. 



The genus is so large that it might easily furnish material 

 for a complete report, therefore only the most striking char- 

 acters are noted. 



Boletus affinis Pk. (related). 



Mansfield, July (260). 

 Boletus albellus Pk. (whitish). 



South Windsor, Hanmcr. 

 Boletus albus Pk. (white). 



Goshen, Underivood. 

 Boletus Americanus Pk. 



Goshen, Underwood; Mansfield July, Aug. (130, 50). 

 Plate XXIX. 

 Boletus aestivalis (Paul.) Fr. (summer). 



Mansfield, July (279). 



