SI BSJ ( TION P/YGROCYBJ 125 



Agaricus conicus var. amacmis Lasch., Lino 0. L828. 



Hygrophorus amoenus (Lasch) Quel, Champ, [ura et Vosges, p. L92. 



L872. 

 Hygrocybe calyptraeformis (Berk.) Fayod, Am. Sci. Nat. Serie i 



309. 1889. 



Illustrations: 



Fig. 29; also la, Lb. 



Coker, Elisha Mitchell Sci. Soc. Jour. 45, pi. 12. 



Juillard-Hartmann, Icon. Champ., pi. 50, fig. 1. 



Smith and Hesler, Ll<>> dia 5, pi. I" I as //. amoi mis . 

 Wakefield and Dennis. ( oininon British Fungi, pi. 32, fig. 1 . 



IMleus 2.5-6 cm broad, sharpl) conic to cuspidate, becoming ex- 

 panded, "coral red." 'Mikado orange," "terra cotta." or "vinaceous 

 tawny" when moist ( chill pinkish red or occasionally tinged with lav- 

 ender), fading to 'hull pink" or "shell pink" (ver) bright delicate 

 pink), the disc sometimes whitish, surface" slightly viscid when moist. 

 soon dry, innately fibrillose. margin spreading or recurved and rimose 

 or lobed in age, faintly striatulate when moist. 



Context thin to moderately thick, pinkish; odor and taste not dis- 

 tinctive. 



Lamellae ascending adnate and becoming adnexed, "hydrangea 

 pink" (pale bright pink), close to subdistant. narrow but becoming 

 somewhat ventricose, sometimes intervenose, edges undulated and at 

 times minutely fimbriate. 



Stipe (2)5.-5-16 cm long, 4-8(10) mm thick, whitish-tinged flesh 

 color, sometimes tinged with lavender when young, strict, equal, verj 

 fragile, splitting readily, surface glabrous and lubricous but not viscid, 

 often longitudinally striate or twisted-striate. terete or occasionally 

 compressed, hollow. 



Spores 6.3-8(9) X 4.5-5(6) //, broadly ellipsoid, smooth, yellowish 

 in Melzer's reagent. Basidia 4-spored, rarely 2-sporcd. 36-54 x 6-9 /u, 

 sterigmata up to 9 ^ long. Pleuroc vstidia scattered. 50-105(140) X 

 8-25 p, clavate, cylindric, or fusoid-ventricose. projecting about 20 ,/. 

 thin-walled, hyaline, simple or occasionally branched or constricted 

 near the apex; cheilocvstidia similar, smaller 62-78 X 11-15 ^. Gill 

 trama parallel to subparallel. hvphae 10-20 n. broad, yellowish to very 

 pale vinaceous in iodine. Cuticle a narrow, gelatinous /one. some hv- 

 phae slender (3-5 p.) and long-celled, others septate-constricted, 50- 

 100 X 10-22 /x, the terminal cell cvstidioid. No hvpodermium. Pileus 

 trama of broad radial hvphae. (damp connections found only in the 

 subhvmenium. 



Habit, Habitat, and Distribution — Scattered to gregarious on 

 soil, often in deep humus, in coniferous and mixed woods. Maryland, 



