Polyporaceae 



I. Tubes of one color, or mouths not reddish 2 Boletus. 



2. Stem lacunose-reticulated and lacerated. (p. 436.) Laceripedes 



2. Stem reticulated with veins, not lacerated 3 



2 . Stem not reticulated 5 



3. Tubes white, becoming flesh-colored. . .(p. 466.) Hyporhodii 



3. Tubes not becoming flesh-colored 4 



4. Tubes free, or if adnate then stuffed when young, (p. 444.) Edules 

 4. Tubes adnate, not stuffed when young, (p. 438.) Calopodes 



5. Pileus viscid or glutinous when moist 6 



5 . Pileus dry 7 



6. Tubes adnate (p. 406. ) Viscipelles 



6. Tubes free or nearly so, yellowish (p. 444.) Edules 



6. Tubes free or nearly so, whitish (p. 459-) Versipelles 



7 . Stem solid 8 



7. Stemspongy within, soon cavernous or hollow, .(p. 47 1.) Cariosi 



8. Tubes becoming flesh-colored (p. 466. ) Hyporhodii 



8. Tubes not becoming flesh-colored 9 



9. Tubes adnate 10 



9. Tubes free or nearly so 1 1 



10. Pileus subtomentose (p. 450.) Subtomentosi 



10. Pileus glabrous or pruinose (p. 423.) Subpruinosi 



1 1 . Tubes yellowish or stuffed when young (p. 444. ) Edules 



1 1 . Tubes whitish, not stuffed ( P- 459- ) Versipelles 



Peck, Boleti of the U. S. 



C. H. Peck, N. Y. State Botanist, has contributed to Mycological 

 literature his careful arrangement and analysis of species of this genus, 

 in his "Boleti of the United States." Species of the genus are found in 

 every state of the Union. Several species are common to all the states. 

 Comprehending, as do the states, all sorts of climates within their vast 

 range of latitude, differences in appearance and structure in the same 

 species must be expected, dependent largely, as they are in most fungi, 

 upon habitat and environment. These variations will frequently sug- 

 gest new species. Descriptions which are typical and which can be 

 recognized as standard are most desirable. Professor Peck's are ac- 

 cepted by the writer as such, that there may be uniformity, and are 

 quoted as fully as space will permit. Such variations as are attributa- 

 ble to locality will be noted. 



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