Report of the Botanist. 127 



2. Leis'tinus cochleatus Fr. 



Pilens fleshy, firm, expanded, irregular, snblobed, often 

 umbilicate or depressed, smooth, dull grayish-rufous ; lamellse 

 close, rather broad, seriuted, dull flesh-colored ; stipe central, 

 eccentric or lateral, solid, slightly narrowed downward, dis- 

 tantly sulcate ; plant densely csespitose ; pilei often growing 

 together. 



Height 1-2', breadth of pileus 6"- 12". 



Decaying wood. North Elba. August. 



Genus — BOLETUS Fr.'' 



Hymenophorum quite distinct from the hymenium. Trama 

 obsolete. Hymenium lining the cavity of tubes separable 

 from one another and from the hymenophorum. — BerJi. Outl. 



The species of this genus are numerous, often large and fleshy, 

 and readily known by the tubes being easily separable from the 

 pileus. The flesh is soft and juicy and is very liable to be 

 attacked by insects. In some sj)ecies it changes color when 

 bruised or cut. 



Synopsis of the Species. 



Pileus viscid wheu moist a. 



a. Tubes attached to the stem, without a stipal cavity b. 



b. Stem annulate c. 



c. Pileus scaly d. 



d. Stem long (-I'-C) 1. 



d. Stem short (l'-3') 2. 



c. Pileus smooth e. 



e. Tubes small, simple f . 



f . Pileus yellow 3. 



f . Pileus bay 4. 



e. Tubes ample, compound 5. 



b. Stem not annulate g. 



g. Pileus yellow, flesh yellow 6. 



g. Pileus pallid, flesh white 7. 



g. Pileus white, flesh white 8. 



a. Tubes with a stipal cavity 9. 



Pileus not viscid h. 



h. Tubes with a stipal cavity i. 



i. Flesh becoming blue where cut or bruised k. 



k. Tubes one color 10. 



k. Tubes with the mouth differently colored 11. 



1. Flesh not turning blue L 



1. Tubes pale flesh-color 12 



1. Tubes yellow 13 



h. Tubes attached, with no stipal cavity m 



m. Pileus distinctly tomentose n. 



n. Pileus purplish-brown 14. 



n. Pileus bright pinkish-red 15. 



n. Pileus blackish-brown IG. 



m. Pileus smooth, or most minutely tomentose o. 



* This genus belongs to the order Polypurei. 



