GUIDE TO THE MODELS OF FUNGI. 



53 



angular, yellow ; stalk short, attenuated downwards, faintly ribbed, 

 slightly rough. 



Common in mixed woods, but especially beech, where it 

 frequently grows on beech nuts. 



123. Boletus pachypus Fr. — Pileus brownish-ochre, then tan- 

 coloured, pulvinate, slightly velvety ; flesh whitish or pale yellowish, 

 changing to azure-blue on being cut or broken ; tubes long, shortened 

 round the stem; pores round, yellow, at length greenish ; stalk thick, 

 firm, somewhat short, ovato-bulbous, reticulate, variegated yellow 

 and red, sometimes wholly blood-red. 



B. pachypus is a large and beautiful species, common in mixed 

 woods. 



124. Boletus edulis Bull. — Pileus light brown, bay, or chestnut, 

 rarely whitish or grey-brown, pulvinate, smooth, moist ; flesh white, 

 unchanging when cut or broken, compact, 

 brownish beneath the cuticle; tubes almost 

 free, elongated, minute, at first white, then 

 yellow-green, at length olive-greenish, very 

 short round the stem ; stalk stout, often 



swollen, pale brown, reticulated with fine 

 white network at apex (best seen under a 

 lens). 



B. edulis is very common in woods, 

 especially beech, from midsummer to early 

 winter, and easily distinguished from the 

 other British species. Usually large and 

 obese. Esculent; one of the best, but the 

 flesh is somewhat soft and tasteless when 

 cooked. When cooked with meat or in 

 gravy it is excellent. It is in the best condition for cooking when 

 the tube surface is yellowish. This is the common edible Boletus of 

 Continental markets, where it is sometimes sold under the name 

 Cepe or Ceps. It is the Porcino (pig) or Ferre of Italian markets. 



A brilliant yellow parasitic mould often attacks the tubes of 

 B. edulis, B. siibtomentosus, and B. scaler ; this is named Hyponiyces 

 chtysospermus Tul. 



125. Boletus Satanas Lenz. — Pileus pale brownish-tan, becoming 

 nearly white, pulvinate, smooth, somewhat viscous ; flesh whitish, 

 often with bright-crimson patches at the base of the stem, becoming 

 bright blue when bruised or broken ; tubes free, yellow ; pores 

 minute, at first blood-scarlet, becoming vermilion or orange when old ; 

 stalk very stout, ventricose, beautifully marked at apex with blood- 

 red reticulations. 



B. Satanas is a rare, often large, and handsome inhabitant of 

 woods and woody places. Said to be dangerous, but probably 

 harmless. Taste mild. 



Fig. 45. — Boletus edulis Bull. 

 (One-quarter natural size.) 



