Part 1, 1914] AGARICACEAE 7 



2. Melanoleuca grammopodia (Bull. & Vent.) Murrill. 



Agaricus grammopodius Bull. & Vent. Champ. Fr. 1: 617. 1809. 

 Tricholoma grammopodium Quel. Champ. Jura Vosg. 46. 1872. 



Pileus rather thin and tough, convex to umbonate-depressed, regular or somewhat lobed, 

 growing in rings, 8-14 cm. broad; surface white, very smooth, glabrous, soft to the touch, 

 slightly radiat'e-rimose at times, unicolorous or brownish on the umbo, margin entire or lobed, 

 straight but incurved on drying; context thin, white, with pleasant taste and odor; lamellae 

 emarginate, narrow, slightly ventricose, crowded, white; spores ellipsoid, smooth, hyaline, 

 granular, chalk- white in mass, 7.5-8.5X4-5 n\ stipe subcylindric to slightly enlarged above 

 and at times bulbous below, glabrous, avellaneous, longitudinally striate, twisted, solid or 

 stuffed, fleshy, 7.5-13 cm. long, 8-15 mm. thick. 



Type locality: France. 

 Habitat: Grassy ground in fields or woods. 

 Distribution: Northeastern United States. 



Illustrations: Bar la, Champ. Nice pi. 46, f. 1-7; Bres. Funghi Mang. pi. 32; Bull. Herb. Fr. 

 pi. 548, 585, f. 1; Hussey, 111. Brit. Myc. 2: pi. 41; Hard, Mushrooms/. 57. 



3. Melanoleuca subcinerea (Peck) Murrill. 



Tricholoma subcinereum Peck, Bull. N. Y. State Mus. 131: 27. 1909. 



Pileus thin, plane or centrally depressed, 4—6.5 cm. broad; surface subglabrous, whitish, 

 pale-cinereous, or grayish-brown, the center sometimes a little darker and with a slight 

 pruinose appearance; context white, odor strong, taste slightly and tardily acrid; lamellae 

 thin, close, slightly sinuate, white; spores broadly ellipsoid, 7.5-9 X 6-7 p\ stipe central or 

 eccentric, equal or slightly thickened toward the base, solid, silky-fibrillose, whitish or brown 

 externally, brownish within, 4-7.5 cm. long, 6-14 mm. thick. 



Type locality: Pittsford, Monroe County, New York. '* 

 Habitat: On earth or buried wood in a cellar. 

 Distribution : Massachusetts and New York. 



4. Melanoleuca melaleuca (Pers.) Pat. Tax. Hym6n. 159. 1900. 



Agaricus melaleucus Pers. Syn. Fung. 355. 1801. 



Tricholoma melaleucum Quel. Champ. Jura Vosg. 47. 1872. 



Agaricus humilis Pers. Syn. Fung. 360. 1801. 



? Agaricus exscissus Fries, Syst. Myc. 1: 114. 1821. 



Tricholoma planiceps Peck, Bull. N. Y. State Mus. 157: 35. 1912. 



Pileus thin, convex to plane, depressed around the small umbo, solitary, 3-6 cm. broad; 

 surface glabrous, fuliginous to fawn-colored, margin incurved when young ; context thin, sweet, 

 edible, inodorous ; lamellae very white, ventricose, emarginate, crowded ; spores ovoid-ellipsoid, 

 finely echinulate, hyaline, uninculeate, 7-9 X 5-6 n; stipe elastic, variable in color and size, 

 subglabrous, slender, often enlarged above or below, 4-10 cm. long. 



Type locality: Europe. 

 Habitat: Woods, fields, and lawns. 

 Distribution: Throughout temperate regions. 



Illustrations: Barla, Champ. Nice pi. 46, f. 8-15; Cooke, Brit. Fungi pi. 119 (119), 1127; 

 Fries, Ic. Hymen, pi. 44; Gill. Champ. Fr. pi. 90 (682); Mycologia 3: pi. 49, /. 4. 



5. Melanoleuca subacuta (Peck) Murrill. 



Tricholoma subacutum Peck, Ann. Rep. N. Y. State Mus. 42: 112. 1889. 



Pileus at first ovoid or broadly conic, then convex and subacutely'umbonate, 4-7.5 cm. 

 broad ; surface dry, silky and obscurely virgate with minute innate fibrils, whitish tinged with 

 smoky-brown or bluish- gray, darker on the umbo; context white, taste acrid or peppery; 

 lamellae rather close, slightly adnexed, white; spores broadly ellipsoid or subglobose, 6-7.5 X 

 6-6.5 /*; stipe equal, stuffed or hollow, silky-fibrillose, white, 5-10 cm. long, 6-12 mm. thick. 



Type locality : North Elba, New York. 



Habitat: In spruce and balsam fir woods. 



Distribution: New York and New Brunswick. 



Illustrations: Ann. Rep. N. Y. State Mus. 42: pi. l,f. 1-5; Bull. N. Y. State Mus. 67: pi. 82, 



f. 7-14. 



