266 AGARICACE^: Hygrophorus 



1242. H. spadieeus Fr. (from the brown pileus; spadiceus, date- 



brown) a. 



P. conical, subacute, campanulate, fibrillose, virgate, covered 

 with olive-bay gluten. St. equal, dry, fibrillose, tawny or 

 yellow, white below. G. ventricose, distant, lemon or clear 

 yellow. 



Mossy and grassy places, on the ground. July. 2 X 2j x f in. Not 

 turning black. 



1243. H. unguinosus Fr. (from the glutinous pileus and stem; 



nnguinosus, oily) a b. 

 P. campanulato-convex, obtuse, sepia, umber, fuliginous or 



yellowish-brown. St. equal or slightly attenuate above and 



below, colour as P. G. adnate with a tooth, ventricose, 



white. 

 Taste and odour none. Woods, pastures, moist places ; frequent. Aug.-Oct. 



i X 31 X | in. 



1244. H. nitratus Fr. (from the nitrous odour) a b c. 



P. convex, obtuse or depressed, at first viscid, then flocculoso- 

 squamulose and rimosely incised, fuscous-cinereous, blotted, 

 becoming pale, or deep umber with whitish marg. St. equal, 

 smooth, lustrous, grey-whitish. G. broadly emarginate, distant, 

 veined, whitish to glaucous. 



Odour very strong and disagreeable, like compounds of nitrogen and oxygen. 

 Woods, pastures ; uncommon. Aug. -Nov. if x 2 X J in. Must not 

 be confounded with 111. There is a form larger than type. Var. glauco- 

 nitens Fr., rigid. P. dark-olive or sooty, becoming pale. G. becoming 

 glaucous. Persoon and others, including myself, regard the variety as a 

 distinct species. Berkeley, I believe, looked upon it as a Tricholoma 

 near 111. 



XLVIII. LACTARIUS Fr. 

 (From the milky juice ; lac, milk.) 



Hymenophore confluent and homogeneous with the stem. Veil 

 more or less obsolete, present in the ragged-appendiculate or 

 pubescent margin of the pileus in some species and in the gluten of 

 others. Pileus fleshy, somewhat rigid, the texture floccose or vesci- 

 culose, not fibrous, often zoned, margin at first involute, milky. Stem 

 usually central, not corticate, exannulate, milky. Gills adnato- 

 decurrent, adnate in 1256, 1264, 1270, 1290 and 1302, often branched, 

 unequal, membranous-waxy, subrigid, edge acute, trama vesiculose, 

 milky. Spores subglobose, minutely echinulate, white, rarely 

 yellowish. (Fig. 62.) 



Every part of the plant contains numerous anastomosing 

 lactiferous cells filled with densely granular latex or milk which 

 is usually white, but in some instances the colour changes on exposure 



