58 SECTION CAMAROPHYLLOPSIS 



M \ n.HiAL Studied — idaho: Smith 54279, 58239. Massachusetts: 

 Bigelow 9130. Michigan: Imshaug 4812; Smith 33115, 33151, 33159, 

 33163, 41726, 50254. Washington: Kauffman, Lake Quinault, Oct. 16, 

 1925; Mwn-ill 568 (type, from Seattle, Oct. 20 to Nov. 1, 1911). 



Observations — Notes on the type: Spores 5.5-7(8) X 3.5-4.5 /*, 

 ellipsoid, smooth, pale yellow in Melzer's reagent. Basidia 34-46 X 

 4-6 [x, 4-spored. Pleurocystidia and cheilocystidia none. Gill trama 

 interwoven. Cuticle of loosely tangled non-gelatinous hyphae. Clamp 

 connections present on the cuticular hyphae. The species is very close 

 to H. pratensis but differs in color. 



9 



Hygrophorus virgineus (Fr.) Fr. 



Epicr. Myc, p. 327. 1838 



Agaricus virgineus Fr., Syst. Myc. 1: 100. 1821. 



Camarophyllus virgineus (Fr.) Kummer, Fiihr. in Pilzk., p. 117. 1871. 



Illustrations : 

 Fig. 13. 



Boudier, Icon. Myc, pi. 37. 

 Bresadola, Icon. Myc, tab. 328. 

 Jacquin, Misc. Austr. 2, pi. 15, fig. 1. 

 Lange, Flora Agar. Dan. 5, pi. 164C. 

 Peck, N. Y. State Mus. Bull. 5, pi. 58, figs. 8-12. 

 Peck, N. Y. State Mus. Mem. 3, pi. 52, figs. 8-12. 

 Sowerby, Engl. Fungi, pi. 32. 

 Vittadini, Descr. Fungi Mang., pi. 32, fig. 2. 

 Wakefield and Dennis, Common British Fungi, pi. 24, fig. 1. 



Pileus 2-5 cm broad, at first convex and usually weakly umbonate, 

 later nearly plane or finally slightly depressed, margin incurved at 

 first, later nearly plane, white, finally tinged yellow at least over the 

 disc, at first moist, later dry and becoming rimose, finally somewhat 

 pruinose or fibrillose, central portion rather fleshy, margin thin, even 

 when dry, at times striatulate when wet. Context white, soft, watery, 

 thick on disc; odor none or slightly pleasant, taste mild. 



Lamellae decurrent, white, finally tinged yellow, 3-5(7) mm 

 broad, rather thick, subdistant to distant, venose. 



Stipe 3-7 cm long, 3-8 mm thick, white, rarely pale pinkish 

 lavender downward, smooth, glabrous, sometimes pruinose, narrowed 

 below, often broadened above, sometimes flexuous, solid at first, later 

 stuffed. 



Spores 8-10(12) X 5-7 /x, ellipsoid, more rarely ovoid, smooth, 

 white in mass, yellowish in Melzer's reagent. Basidia 38-60 X 5-8 /x, 

 4-spored, rarely 2-spored. Pleurocystidia and cheilocystidia none. Gill 

 trama interwoven, hyphae 5-12 /x broad. Cuticle of undifferentiated, 



