186 SECTION HYGROCYBE 



from 2-spored basidia. We believe that his descriptions ( 1918: 196-97), 

 both apply to H. puniceus. Murrill (1916) described H. coccineus as 

 viscid, and ( Murrill, 1910) illustrated it as having much the same color 

 as H. puniceus. Hence his report and the distribution given in the 

 North American Flora are also questioned. According to our experi- 

 ence, H. puniceus is a very common and variable species in North 

 America, whereas H. coccineus is very rare. 



Hongo (1952c) has reported this species from Japan, and M. 

 Lange (1955) has found it in Greenland. He also suggests that H. 

 puniceus f. minor recorded by Christiansen (1941) from Iceland may 

 belong here. 



103 



Hygrophorus parvulus Pk. 



N. Y. State Mus. Ann. Rept. 28: 50. 1879 



Hydrocybe parvula (Pk.) Murr., North Amer. Flora 9: 378. 1916. 



Illustrations : 

 Fig. 53. 



Peck, N. Y. State Mus. Ann. Rept., pi. 1, figs. 20-24. 

 Smith and Hesler, Lloydia 5, pi. 15b. 



Pileus 1-3 cm broad, obtuse to convex, sometimes with a depressed 

 disc, glabrous, moist, at times subviscid, hygrophanous, "amber yellow," 

 "apricot yellow," "light cadmium," "straw yellow," or "wax yellow," 

 opaque and a paler yellow when faded, sometimes "orange" to "cad- 

 mium yellow" moist, fading to "baryta-yellow," translucent striate. 

 Context brittle, waxy, thin, concolorous with the surface, unchanging; 

 odor and taste mild. 



Lamellae decurrent, subdistant, broad, subtriangular, intervenose, 

 whitish or pale yellowish to "wax yellow," edges even. 



Stipe 3-6 cm long, 2-3 mm thick, "citron yellow" to "amber yellow," 

 base frequently becoming tinged "grenadine red" or dull rufous, at 

 times the lower half or more tinged rufous or ochraceous salmon, terete 

 or compressed, narrowed at the base or equal, fragile, glabrous, dry or 

 moist, not viscid, hollow. 



Spores 5-7(8.5) X 3.5-5 /x, ellipsoid, smooth, pale yellow in 

 Melzer's reagent. Basidia 26-40 X 5-7 xi, 2- and 4-spored. Pleurocystidia 

 and cheilocystidia not differentiated. Gill trama of subparallel hyphae, 

 the cells 8-20 /x long, 10-30 /x broad. Cuticle of repent hyphae, a few 

 surface hyphae appearing slightly gelatinous, some free ends more or 

 less erect. No hypodermium differentiated. Pileus trama of radial 

 hyphae. Clamp connections present on the cuticular hyphae. 



