BOLETUS 559 



var. flavus (With.) Eea. Bres. Fung. Trid. t. 132, as Boletus flavus 

 With. Flavus, light yellow. 



Differs from the type in the adnate tubes, the larger orifice of the 

 greyish yellow pores, and the paler flesh which is rosy when broken. 

 Coniferous woods. Aug. Nov. Uncommon, (v.v.) 



var. pulchellus (Fr.) Rea. Fr. Icon. t. 178, fig. 1, as Boletus pulchellus 



Fr. Pulchellus, beautiful little. 



Differs from the type in its smaller size, 3-4 cm. broad, its short, 



smooth, yellow St., its less viscid, greenish yellow p., its narrow, linear 



ring and its rosy flesh. Coniferous woods. July Sept. Rare, (v.v.) 



1843. B. flavidus Fr. Krombh. t. 4, figs. 35-37. 



Flavidus, light yellow. 



P. 2-5 cm., livid light yellowish, campanulate, umbonate, then plane 

 and gibbous, viscid, radiately wrinkled. St. 5-7-5 x 4-6 mm., whitish 

 tinged with yellow, subequal, tough, mealy, sometimes striate, apex 

 sprinkled with fugacious glandules; base white, cottony. Ring gela- 

 tinous, greenish white, thin, narrow; margin floccose, viscid. Tubes 

 dirty light yellow, decurrent ; orifice of pores large, angular, compound. 

 Flesh yellowish, reddish on exposure to the air, thin, firm. Spores 

 "subhyaline, elongato-ellipsoid, straight, 8-10 x 3-5-4 /z" Karst. 

 Taste pleasant. Pine woods. July Oct. Uncommon. 



**Pores white, grey, or green. Spores brownish. 



1844. B. viscidus (Linn.) Fr. (= Boletus laricinus Berk. sec. Quel.) 

 Fr. Icon. t. 178, fig. 3. Viscidus, viscid. 



P. 5-10 cm., dirty white with livid stains, or dingy yellowish, cam- 

 panulato-convex, pulvinate, viscid, floccose, rugose. St. 5-9 x 1- 

 1-5 cm., white, becoming yellow or greyish, equal, or thickened at the 

 base, viscid, floccose, apex reticulate. Ring white, membranaceous, 

 large, thin, often torn. Tubes white, then greyish or tinged greenish, 

 adnate, subdecurrent ; orifice of pores large, unequal, compound, 

 often toothed. Flesh white, watery, soft. Spores brownish, oblong 

 elliptical, 11-13 x 4-5/n, multi-guttulate. Taste pleasant. Edible. 

 Woods, especially under larches. May Dec. Common, (v.v.) 



2. St. exannulate. 



*Pores yellowish, yellow, golden, or orange; spores yellow. 

 P. never white. 



1845. B. collinitus Fr. Lucand, Champ, t. 240. 



Collinitus, besmeared. 



P. 56 cm., chestnut, becoming pale when the fuscous gluten separates, 

 and veined with brown, convex, pulvinate. St. 5-7-5 x 1-5-2-5 cm., 



