Supplement 



(Plate CCXIV.) 



Boletus laricinus Berk., Pk. in Rep., 1904: 46. Pileus flesh}-, 

 broadly convex or nearly plane, viscid when moist, sometimes squam- 

 ose, dingy white or grayish white. Flesh white. Tubes short, adnate 



or slightly decurrent, whitish when 

 young, becoming darker and brown 

 with age, their mouths large, angu- 

 lar, subcompound. Stem short, 

 solid, annulate, reticulate above the 

 ring, grayish or brownish below. 

 Spores brown, oblong, .0004 to 

 .0005 of an inch long. .00016 to 

 .0002 broad. 



Under or near larch trees. New 

 York. October. 



The larch boletus takes its name 

 from its place of growth. It is 

 closely related to the Elba boletus 

 (B. elbensis Pk.) which is found 

 under or near tamarack trees in the 

 northern part of our state. In the 



n ^giifiH^ ^Sl^^i larch boletus the cap is paler and 



^ i/ 2nal has no pinkish brown tint which 



often is seen on the cap of the Elba 

 boletus. The cap is sometimes adorned by brown or blackish scales 

 which are easily rubbed or washed away, leaving the whitish cap en- 

 tirely naked. The flesh is soft and white or whitish. The tubes are at 

 first whitish, but they change with age to brownish and then to a dark 

 sepia color. The mouths are large and angular. In some cases shorter 

 dissepiments within the larger tubes give them the appearance of being 

 composed of two or more smaller ones. The tube walls extend down- 

 ward on the stem to the ring and by anastomosing give the reticulated 

 appearance called cribose in the older descriptions. This is one of the 

 distinguishing characters between the larch boletus and the Elba boletus. 

 The larch boletus is worthy of a place among our esculent species. I 

 have not yet tested the edible qualities of the Elba boletus. Peck. 



Boletus multipunctllS Pk. Rep , 1901 : 952. Pileus fleshy, convex 

 or nearly plane, dry, brownish ochre, sometimes with a slight reddish 



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