184 A CATALOGUE OF EKITISH POISONOUS FUNGI. 



Boletus laricinus. Small. Weedy habit. Drab tints. Drab pores. Stem 

 slender and pcrobiculate. Under larches. Bare. 



Boletos parasiticus. Entirely golden-yellow. Very small. Parasitic on 

 Scleroderms. 



Boletus piperatus. Small. Cinnamon pileus. Keddish-brown pores. Yellow 

 flesh. Slender stem. Peppery taste. Common locally. 



Boletus purpureus. Pileus, stem, and pores purple-crimson. Eare. (PI. VI. 

 fig. 1.) 



Boletus radicans. Pileus, stem, and pores drab, or stone-colour. Pileus 

 large. Stem slender and rooting. Uncommon. 



Boletus rubinus. Tubes entirely carmine. Flesh vivid yellow, unchanging. 

 Rare. 



Boletus sanguiueus. Very small. Pileus and stem crimson. Tubes orange, 

 Eare. 



Boletus (Strobilomyces) strobilaceus. Pileus blackish-brown, scaly as a fir-cone. 

 Eare. (PI. VI. fig. 2.) 



Boletus variegatus. Pileus tawny-yellow, scaly. Margin flocculose. Stem and 

 flesh yellow, becoming greenish where wounded. Tubes brown-yellow. In pine 

 woods. Bare.— ir. D. H. 



Genus POLYPORUS. 



(XL VII.) POLYPORUS OFFICmALIS ; The Larch-clump. 



Habitat. On old larches. Sohtary. 



Season. September until April. 



Pileus. Up to twelve or sixteen inches diameter, white, zoned 

 with yellow and brown, smooth, glabrous, dry, polished ; reniform, 

 flabelliform, or like a horse-shoe, very thick; lateral, sessile, rimose 

 at base. 



Fores. Minute, indistinct, yellowish. 



Section. Flesh very thick, soft, tough, white, friable when dry. 

 Tubes short, minute. Odour mealy. Taste bitter. 



Ohs. Not stated to have occurred in Britain. It is found in the Alps and 

 Dauphin^, and I believe also in North America. It is an old-fashioned, 

 popular medicine, and was once an official drug with us. It is an active 

 purgative, and somewhat emetic. It seems to have lately reappeared in American 

 pharmacy as a remedy for phthisis. The powder of it is still kept by herbalists, 

 under the title of "Larch Boletus," or " Boletus laricinus." I therefore include 

 it in this list as a species having some interest attached to it.— If". D. H. 



(XLVIII.) POLYPOEUS PERENNIS ; The Brown Stump-flap. 

 IJahilat. On stunijis, .siei'ile ground, and charcoal heaps. Singly, 

 or in tufts ; perhaps confluent. 



Season. Autumn, and then perennial. Uncommon. 



Pileus. Two or three inches across, varying shades of bright 



