LACTABIUS 487 



subglobose, 8 x 7-8/i, minutely echinnlate, 1-guttulate. Cystidia 

 "cylindrical, with a short point, 70-105 x 6-8 /A" Rick. Taste very 

 peppery. Said to be edible. Woods. Aug. Dec. Common, (v.v.) 

 var. velutinus Bertillon. Velutinus, velvety. 



Differs from the type in the more crowded gills, in the flesh turning 

 reddish tawny on exposure to the air, and in the sweet milk only slowly 

 becoming somewhat acrid, and not turning litmus paper red. Woods. 

 Uncommon, (v.v.) 

 L. exsuccus (Otto) Fr. = Russula chloroides (Krombh.) Bres. 



1592. L. scoticus B. & Br. Cke. Illus. no. 938, t. 1004, fig. B. 



Scoticus, Scotch. 



P. 2-5-5 cm., whitish, convex, then depressed, tomentose, then 

 smooth; margin involute, tomentose. St. 2-5-3 cm. x 6mm., some- 

 what flesh colour, somewhat unequal, curved. Gills whitish, very 

 slightly decurrent, thin, scarcely branched, about 2 mm. broad. Flesh 

 whitish. Milk white, acrid. Spores white, subglobose, 7-8/A, apiculate, 

 minutely ecbinulate. Smell pungent, taste very acrid. Amongst moss. 

 Sept. Rare. 



1593. L. involutes Soppitt. Cke. Illus. no. 1195, t. 1194. 



Involutus, incurved. 



Entirely white, or with a pale ochraceous tinge. P. 2-5-5 cm., convex, 

 then plane, or slightly depressed; margin strongly and persistently 

 involute, minutely silky. St. 2-3 cm. x 4-6 mm., equal, or slightly 

 thickened at the base, very firm. Gills very slightly decurrent, very 

 crowded, 1 mm. broad, sometimes forked. Milk white, very acrid. 

 Spores white, pip-shaped, 5 x 3/n, smooth. Taste acrid. Woods. Sept. 

 Rare. 



II. St. central. Gills naked. Milk always deeply coloured. 



1594. L. delieiosus (Linn.) Fr. Cke. Illus. no. 947, t. 982. 



Deliciosus, delicious. 



P. 5-15 cm., orange-brick-colour, becoming pale and stained with 

 verdigris, concentrically zoned with darker markings, convex, then 

 piano-depressed, or broadly infundibuliform, slightly viscid. St. 2- 

 8 x 22-5 cm., concolorous, or paler, often stained with verdigris, equal, 

 or attenuated at the base, fragile, often spotted in a pitted manner. 

 Gills saffron yellow, becoming stained with verdigris, subdecurrent, 

 crowded, narrow, arcuate, often branched. Flesh white, then reddish 

 and becoming verdigris. Milk red-brick-saffron, aromatic, mild, then 

 slightly acrid. Spores white, pinkish in the mass, subglobose, 8-9 x 

 7-8 /A, echinulate, 1-guttulate. Cystidia "sparse, fusiform-subulate, 

 30-40 x 4-6 /A" Rick. Smell pleasant, taste slightly acrid. Edible. 

 Coniferous woods, and elsewhere under conifers. July Dec. Com- 

 mon, (v.v.) 



