LACTABIUS. 13 



slowly becoming acrid; white, changing to lilac; spores 

 globose, 10 p. diameter. 



Lactarius uvidus, Fries, Epicr., p. 338 ; Cke., Illustr., pi. 

 991 ; Cke., Hdbk., p. 308. 



In woods. 



Distinguished at once by the milk changing from white to 

 a distinct lilac colour when exposed to the air. 



Pileus 2-2^ in. broad, fleshy, depressed, sometimes obso- 

 letely zoned, viscid, pale dirty rufescent or cinereous with a 

 shade of lilac, speckled with small watery spots, which origi- 

 nate beneath the epidermis. Gills paler, adnato-decurrent, 

 the shorter ones very obtuse and truncate behind, connected 

 by veins. Milk white, acrid. Stem 2 in. high, ^ in. thick, 

 spongy, at length hollow, marked with little longitudinal 

 pits, strigose at the base, the whole plant when cut white 

 turning to a beautiful lilac. It is not, however, the milk 

 which changes colour, on exposure to air, but the flesh itself. 

 (Berk.) 



Soft and fragile, somewhat insipid then slowly becoming- 

 acrid; smell weak. Milk white, usually changing to a lilac 

 colour when exposed, rarely remaining white or changing 

 to a dingy tan-colour. Pileus sometimes obsoletely zoned, 



indistinctly pellucidly striate when old; gills sometimes 

 becoming yellowish. (Fries.) 



*** Piperati. 



Lactarius (Piper.) flexuosus. Fr. 

 Pileus 3-5 in. across, fleshy ; convex then expanded and 

 depressed, somewhat wavy, margin at first, and for a long 

 time incurved, at length patent, erect, at first almost gla- 

 brous and somewhat shining then becoming minutely broken 

 up into squamules, opaque, lead or violet-grey, becoming 

 pale, zoned or zoneless ; flesh hard, white ; gills adnate, 

 somewhat horizontal, 1-1^ line broad, connected by branches, 

 distant, thick, tinged- yellowish, then becoming tinged with 

 flesh-colour; stem 2-3 in. long, 1 in. and more thick above, 

 stout or eqiially attenuated towards the base, not unfre- 

 quently excentric, and often lacunose, pallid grey, base 

 tinged yellow, apex whitish ; solid ; milk very acrid, white, 

 unchangeable ; spores echinulate, 6-8 /x, diameter. 



