REPORT OF THE STATE BOTANIST 1901 973' 



then white, but after exposure thej soon become brownish and 



final]}' assume the color of the spores, which is brown tinged 



with purple. They are not at all or only slightly rounded at 



the stem and the edges in the mature plant often remain white. 



The stems are rather long and tlexuous, hollow, white, marked 



with short parallel longitudinal lines at the top and sometimea 



with reddish stains at the base. 



The cap is 1.5-5.5 inches broad; the stem 3-5 inches long and 



2-5 lines thick. The plants grow singly or in tufts about old 



stumps and appear in September. They are very good as an 



edible mushroom. The typical form has also been found to be 



edible by one of my correspondents but I have had no oppor- 



tunitv to try it. 



Boletus bicolor Pk. 



TWO COLORED BOLETUS 

 PLATIE 81, FIG. 6-11 



Pileus convex, firm, becoming softer with age, dry, glabrous 

 or merely pruinose tomentose, dark red becoming paler and 

 sometimes spotted or stained w'ith yellow when old, flesh yel- 

 low, not at all or but slightly changing to blue where wounded, 

 taste mild; tubes nearly plane in the mass, adnate, short and 

 yellow when young, longer and ochraceous when mature, their 

 mouths small, angular or subrotund, slowly and slightly chang- 

 ing to blue where wounded; stem nearly equal, firm, solid, dark 

 red, usually yellow at the top; spores pale ochraceous brown, 

 narrowly elliptic or subfusiform, .0004-.0005 of an inch long, 

 .00016-.0002 broad. 



The two colored boletus has the cap and stem dark red or 

 Indian red and the tubes and flesh yellow, w'hich is suggestive 

 of the name applied to it. The cap becomes paler in color and 

 softer in texture as it becomes older, and it often becomes yel- 

 lowish on the margin and spotted or stained with yellow else- 

 where. The surface sometimes cracks in small areas revealing^ 

 the yellow flesh beneath. The tubes are at first short and 

 bright yellow but they become longer and assume orchraceou» 

 hues as they grow^ older. The mouths are small and the dis- 



