LACTARIUS. I O I 



Very robust. The gills are described as anastomosing. Lactarius. 



In wood. Dumfries, 1884. Sept. 



Name — probably from the taste being hot like that of Capsicum. Schulz. — 

 Fr. Hym. Eur. p. 428. S. My col. Scot. Supp. Scot. Nat. 1885, /. 73. 



18. L. chrysorheus Fr. — Pileus 5-7.5 cent. (2-3 in.) broad, 

 somewhat flesh-colour, with darker zones or spots, fleshy, firm, 

 umbilicate then infundibuliform ; flesh white, bright sulphur-yel- 

 low when broken. Stem 5-7.5 cent. (2-3 in.) long-, 1-2.5 cent. 

 (%-\ in.) thick, rigid, stuffed then soon hollow, equal, even, deli- 

 cately pruinate under a lens, dry, white, changing colour only when 

 old. Gills decurrent, very thin and crowded, narrow, 4 mm. (2 

 lin.) broad, pallid-yellowish, not truly changing colour and not 

 pruinose. Milk white then bright sulphur-yellow (golden), very 

 acrid. 



It is easily distinguished from all neighbouring species by the change of 

 colour in the flesh and milk. Pileus when dry sprinkled with thin, whitish 

 lustre, at length darker. 



In mixed woods. Frequent. Sept. -Oct. 



Margin of pileus wavy, involute, and minutely downy when young ; flesh 

 firm, crisp ; gills slightly forked ; stem downy at the base. M.J.B. Name — 

 xpv'cros, gold ; pew, to flow. From the yellow milk. Fr. Mo?wgr. ii. p. 165. 

 Hym. Eur. p. 428. Berk. Out. p. 206. C. Hbk. n. 597. S. Mycol. Scot, n 

 560. Ag. Bolt. t. 144. Krombh. t. 12. f. 7-14. 



19. L. acris Fr. — Pileus 7.5 cent. (3 in.) broad, cinereous-fuli- 

 ginous, sometimes darker sometimes paler, fleshy, firm, rigid, 

 irregular, often excentric or emarginate on one side, at first con- 

 vex then plane, at length obliquely infundibuliform, moist rather 

 than viscous, scarcely zoned, here and there spotted ; flesh white. 

 Stem about 4-5 cent. (i}4-2 in.) long, 12 mm. (}4 in.) or a little 

 more thick, stuffed then hollow, attenuated dow?iwards, often 

 oblique, ascending or curved, pallid, at length fragile. Gills 

 somewhat decurrent, thin, somewhat crowded, somewhat divided 

 behind, at first pallid, then yellow-flesh-colour. Milk white, soon 

 reddish, plentiful. 



Strong-smelling, acrid. Very different from L. fuligi/iosus, which is of the 

 same colour, but approaching L. pyrogalus. 



In woods. Rare. Aug.-Nov. 



Spores echinulate, yellow, 6x8 mk. W.G.S. Name — acer, sharp. From 

 the acrid taste. Fr. Monogr. ii. p. 164. Hym. Eur. p. 428. Berk. Out. p. 

 207. C. Hbk. ?i. 596. S. Mycol. Scot. n. 561. Ag. Bolt. t. 60. Batsch f. 68. 

 Batt. t. 13. E. 



20. L. pergamenus Fr. White. — Pileus fleshy, pliant, convex 



