Part 1, 1914] AGARICACBAE 35 



10. Cortinellus mutifolius Murrill, sp. nov. 



Pileus convex to expanded, subumbonate, solitary or gregarious, 4-8 cm. broad; surface 

 dry, reddish-brown, decorated with rather conspicuous innate scales, margin smooth, entire, 

 concolorous; context watery-brown, unchanging, taste mild, odor not characteristic; lamellae 

 slightly sinuate, subcrowded, of medium breadth, somewhat undulate on the edges, sordid- 

 white, bay in dried specimens ; spores globose, smooth, hyaline, granular, 4-6 /* ; stipe long and 

 rather thick, subequal, usually tapering downward, whitish above, dull-reddish-brown below, 

 smooth, fibrillose, spongy within, 6-10 cm. long, 1-1.5 cm. thick. 



Type collected on the ground in moist woods near Auburn, Alabama, January 5, 1901, Mr. &* 

 Mrs. F. S. Earle. 



Distribution: Known only from the type locality. 



11. Cortinellus vaccinus (Schaeff.) Roze, Bull. Soc. Bot. Fr. 23: 



50. 1876. 



Agaricus vaccinus Schaeff. Fung. Bavar. 4: 13. 1774. 

 Tricholoma vaccinum Quel. Champ. Jura Vosg. 42. 1872. 



Pileus fleshy, convex or campanulate, becoming nearly plane, usually umbonate, gre- 

 garious, 2.5-7.5 cm. broad; surface dry, floccose-squamose, reddish-brown, innate-fibrillose 

 and rimose at times, cuticle bay when young, at length light-bay at the center and avellaneous- 

 isabelline on the marginal zone, margin involute, tomentose; context white, taste farinaceous; 

 lamellae sinuate-adnexed, subdistant, whitish to reddish or reddish-spotted; spores subglobose 

 to broadly ellipsoid, smooth, hyaline, 5-7X4-6 /*; stipe equal, hollow, covered with a fibrillose 

 bark, naked at the apex, whitish-rufescent to bay, 5-9 cm. long, 8-12 mm. thick. 



Type locality: Bavaria. 

 Habitat: On the ground under conifers. 



Distribution : Canada to North Carolina and west to Washington and Oregon. 

 Illustrations: Barla, Champ. Nice pi. 34, f. 8-13; Batsch, Elench.. Fung. pi. 116; Dufour, 

 Atl. Champ, pi. 13, f. 21; Gill. Champ. Fr. pi. 70 (707). 



Exsiccati: Thiim. Myc. Univ. 602; Sydow, Myc. Mar. 3406; D. Sacc. Myc. Ital. 202; Herpell, 



Prap. Hutpilze 5. 



45. PLEUROTUS (Fries) Quel. Champ. Jura Vosg. 77. 1872. 



Agaricus § Pleurotus Fries, Syst. Myc. 1: 178. 1821. 



Pileus putrescent, solitary or cespitose, fleshy, somewhat irregular; lamellae decurrent; 

 spores hyaline ; stipe more or less eccentric, firm, fleshy or woody ; veil well developed, forming 



an annulus. 



Type species, Pleurotus corticatus (Fries) Quel, 



1. Pleurotus dimidiatus (Schaeff.) Murrill. 



Agaricus dimidiatus Schaeff. Fung. Bavar. 4: 57. 1774. 



Agaricus dryinus Pers. Comment. Schaeff. 96. 1800. 



Agaricus corticatus Fries, Obs. Myc. 1: 92. 1815. 



Pleurotus corticatus Quel. Champ. Jura Vosg. 77. 1872. 



Pleurotus dryinus Qu61. Champ. Jura Vosg. 77. 1872. 



Agaricus {Pleurotus) subareolaius Peck, Ann. Rep. N. Y. State Mus. 30: 39. 1878. 



Armillaria dryina P. Karst. Hattsv. 1: 23. 1879. 



" Pileus compact, very firm when dry, dimidiate to subcircular, convex to expanded, be- 

 coming depressed, solitary to somewhat cespitose, 5-20 cm. broad; surface dry, white to 

 avellaneous, becoming yellow with age, at times tinged with lilac on the disk, densely fibrillose 

 or floccose to squamose; lamellae white, becoming yellow with age, subdistant, decurrent, 

 usually anastomosing behind; spores oblong, smooth, pure- white in mass, unchanging, 9-14 X 

 4-6 ix' t stipe curved, eccentric, firm, solid, radicate, striate, fibrillose, 2-12 cm. long, 1-3 cm. 

 thick; veil membranous, fugacious, appendiculate, rarely leaving an annulus. 



Type locality: Bavaria. 



Habitat: Decayed spots in deciduous trees. w 



Distribution: Canada to North Carolina and west to Washington; also in Europe. 

 Illustrations: Schaeff. Fung. Bavar. pi. 233; Atk. Stud. Am. Fungi pi. 33, f. 107; Boudier, 

 Ic Myc 1- pi. 76; Cooke, Brit. Fungi pi. 290; Pat. Tab. Fung. pi. 5 16; Bres. Funghi Trident.^. 80. 



