101 



about 2 inches broad. Tubes rather large, angular, decurrent, compound, 2, 3 

 and 4 in one, dull yellow, changing to cinnamon color in drying. Stem about 

 3 inches long and 3 or 4 lines thick, solid, equal, bright rufous, cribrose at 

 apes or often reticulated to the annulus, which is yellowish white with a 

 rufous edge. Flesh white, with a tinge of yellow in pileus, deeper in stem. 

 Spores .0089-.0042 m. m. 



Found as yet only on grass plats. October. 



7. Boletus flavidus, Fr. 



8. Boletus \;iscosuSj n. sp. 



Pileus pulvinate, very viscid, dirty fuscous red or dirty tawney, with a tinge 

 of purple, edge thin, inflexed. Tubes generally depressed around the stem, at 

 first whitish, then pale yellowish white, at length dirty yellow, compound. 

 Stem short, seldom exceeding 3_^ of an inch, thick, whitish, tinged with pale 

 yellowish dots and slightly cribrose at apex ; the pileus seems to rest upon the 

 ground and looks at first sight as if the whole was enveloped in slime. Flesh 

 jiale yellowish white. Spores .0073-.0025 m. m. 



Borders of pine woods. October and November. 



y. Boletus collinitus, Fr. 10. Boletus albus, Peck. 



11. Boletus ffranulatus, X. 12. Boletus bovinus, Z. 



13. Boletus mitis, Kronib. 14. Boletus clirysenteron, Fr. 



15. Boletus subtomentosus, L. 16. Boletus spadiceus, Schaeff. 

 17. Boletus miuiato-olivaceus, n. sp. 



Pileus at first vermilion color, then disappearing and becoming olivaceous, 

 pulvinate, smooth, rather soft and spongy, margin at first incurved, then ap- 

 planate, 2 to 6 inches broad. Tubes bright lemon yellow, partly adnate, then 

 slightly decurrent. Stem light yellow, generally not always lurid at base, very 

 smooth, enlarges as itenters the pileus, about }£ to i^ of an inch thick. Flesli 

 yellow, changing to blue, the pileus less yellow than in stem. Spores .0125- 

 .0063 m. m. 



Borders of woods. July and August. 



IS. Boletus spcciosus, n. sp. 



Pileus scarlet lake rod, at first globose, then pulvinate, smooth, 3 to 7 inches 

 broad. Tubes bright lemon yellow, small, stuffed when young, adnate. Stem 

 rather large, and somewhat bulbous, often 2 inches thick, yellow and reticu- 

 lated, generally red at base. Flesh palish yellow, changing to blue. Spores 

 .012G-.0052 m. m. 



In ricli woods. Au^-ust. 



