102 AGARICINI. 



Lactarius. then piano-depressed, repand, zoneless, slightly wrinkled, smooth. 

 Stem stuffed, smooth, changing colour. Gills adnate, very nar- 

 row, horizontal, very crowded, branched, white then straw-colour. 

 Milk white, acrid. 



Very much allied to L. piperatus, but differing in the stem being stuffed, at 

 length softer internally, elongated (7.5 cent., 3 in.), unequal, attenuated down- 

 wards and here and there ascending, quite smooth ; in the pileus being thinner, 

 pliant, elastic, most frequently irregular and excentric, for the most part flex- 

 uous, at first convex (not umbilicate), then rather plane, the surface very 

 smooth, but unpolished and wrinkled in a peculiar manner ; and in the gills 

 being adnate, not decurrent, very crowded, very narrow (scarcely 2 mm., i 

 lin. broad), always straight and horizontal, not arcuate or extended upwards, 

 soon straw-colozir. The flesh is very milky, but the gills are sparingly so. 



In woods. Haywood Forest, &c. Oct. 



Spores subglobose, rather irregular, 6-8 mk. C.B.P. Name pergamenus, 

 pergamena, parchment. From its toughness and parchment-like appearance. 

 Fr. Monogr. ii. p. 166. Hym. Eur. p. 430. Grevillea, vol. xi. /. 71. Ag. 

 Swartz. Krombh. t. 57. f. 1-3. Batsch f. 59. 



21. L. piperatus Fr. Pileus 10-22.5 cent - (4-9 in-) broad, 



white, fleshy, rigid, umbilicate when young, reflexed (margin at 



first involute) at the circumference, when full grown wholly in- 



fundibuliform, for the most part regular, even, smooth, zoneless ; 



flesh white. Stem 2.5-5 cent. (1-2 in.) long, 2.5-5 cent. (1-2 in.) 

 thick, solid, obese, equal or obconical, even, obsoletely pruinose, 

 white. Gills decurrent, crowded, narrow, scarcely broader than 

 2 mm. (i lin.), obtuse at the edge, dichotomous, arcuate then all 

 extended upwards in a straight line, white, here and there with 

 yellow spots. Milk white, unchangeable, plentiful and very 

 acrid. 



Compact, firm, dry, inodorous. The pileus becomes obsoletely yellow when 

 old. Although the gills are spotted with yellow, they do not change to straw- 

 colour like those of L. pergamenus. 



In mixed wood. Common. Aug.-Oct. 



When bruised changing to umber. M.J.B. Said to be edible, but very 

 acrid. Spores not echinulate, generally with an apiculus, 5x6 mk. VV.G.S. 

 Name piper, pepper. From the acrid taste. Fr. Monogr. ii. p. 166. Hym. 

 Eur. p. 430. Sv. dtl. Sv. t. 27. Berk. Out. p. 205. C. Hbk. n. 598. S. 

 Mycol. Scot. n. 563. Ag. Scop. Fl. Dan. t. 1132. Barla t. 22. /. 1-5. Harz. 

 t. 39. Krombh. t. 56. f. 1-4. Bull. t. 200. Paul. t. 68. f. 3-4. 



22. L. vellereus Fr. Pileus 12.5-17.5 cent. (5-7 in.) broad, 

 white, fleshy, compact, convexo-saucer-sliaped, the margin for a 

 long time sloping downwards, innato-pubescent, dry, zoneless. 

 Stem 5-7.5 cent. (2-3 in.) long, 2.5-4 cent. (i-i)4 in.) thick, stout, 

 solid, equal, covered over with innate, very thin pubescence. Gills 

 arcuate, adnato-decurrent, rather thick, acute at the edge, some- 



