Report of the Botanist. 81. 



Boletus separans Pech. 



Pileus thick, convex, smooth, shining, sometimes deeply lacnnose, 

 brownish-lihic ; tubes plane or slightly depressed around the stem, 

 at first white, closed and attached to the stem, then by the expan- 

 sion of the pileus usually torn from it, small, subrotand, yellow or 

 brownish-yellow; stem solid, nearly equal, distinctly reticulated, 

 dull-lilac ; spores .00055' long, .00022' broad; flesh white, unchange- 

 able. 



Plant 3'-4:' high, pileus 3' broad, stem ^"-10" thick. 



Grassy ground in open woods. Greenbush. August. 



This was mentioned in a previous report as a marked variety of 

 B. edidis^ but having observed it two years in succession, and 

 finding its- distinctive features quite constant, I am induced to 

 consider it a distinct species. The dried specimens have a strong, 

 disagreeable, acid-like odor. Little webby filaments may often be 

 seen stretched across the space between the stem and the tubes 

 that have been torn from it. In dry weather this separation of the 

 stem and the tubes does not always take place. 



* 



Boletus affinis Peck, 



Pileus dry, minutely tomentulose, even or slightly rugose, chest- 

 nut-colored, soon fading to tawnj^ or ochraceous, the cuticle some- 

 times cracking into areas ; tubes plane or convex, attached to the 

 stem and sometimes depressed around it, at first white and closed, 

 then yellow, small, unequal, angular or subrotund ; stem solid, 

 unequal, smooth, rarely reticulated at the top, pallid or tinged with 

 dull red ; spores elliptical, .00035' long, .00016' broad ; flesh white, 

 unchangeable. 



Plant 2' high, pileus 2'-3' broad, stem 6"-10" thick. 



Grassy ground in open woods. Greepbush. July. 



At first sight this plant bears some resemblance to B. castaneus. 

 The stem is usually ventricose or tapering toward the base ; some- 

 times compressed at the top. It is seldom found uninfested by 

 the larvae of insects. The margin of the pileus is sometimes revo- 

 lute. ^Like the next preceding species, it belongs to the section 

 Edules. 



Boletus modestus Peck. 



Pileus firm, convex, often irregular, dry, minutely tomentulose, 

 yellowish-brown; tubes nearly plane, attached and subdecurrent, 

 pale ochraceous, angular and compound ; stem equal, brown, reti- 

 culated with darker lines ; spores elliptical, .OOOtt' long, .0002' 

 broad ; flesh-gray or pinkish-gray. 



