SI BS1 CTION HYGROCYBl 123 



Bresadola indicated. He also gives the spores as larger than we found 

 them. Since the species appears t<> be \<i\ rare m North America, we 

 hesitate to describe our material as new on differences thai could so 

 easily turn out to be inconstant variations. 



57 



Hygrophorus spadiceus var. spadiceus I. odorus Sm. & lies. 



Sydowia 8: 322. L954 



Pilous 1-5 cm broad, conic \ oung, expanding to conic umbonate or 

 with a spreading to recurved margin, surface "brownish olive" on disc 

 to "Isabella color" on margin, the yellow flesh showing through in 



streaks, margin often lobed or split, viscid when wet but soon dr\ 

 (not glutinous), in age finally darkening to date brown and becoming 

 rimose. Context very soft and fragile; odor sharp and somewhat rapha- 

 noid, taste mild, not blackening when injured. 



Lamellae ascending and nearly free, "pale olive-bufF becoming 

 "deep colonial buff" at maturity, not staining, close, thickish, narrow 

 but in age fairly broad and ventricose. 



Stipe 3-6 cm long, 4-7 mm thick, "olive-buff" to "marguerite yel- 

 low " to "colonial buff," equal, very fragile and splitting longitudinally, 

 moist but not viscid, not staining, no dark fibrils present. 



Spores 8-11 X 5-6 /*, oblong in face view and side view, hyaline in 

 KOH, yellowish in Melzer's reagent. Basidia 36-48 X 8-11 /x, 4-sporcd. 

 Pleurocystidia and cheilocystidia none. Gill trama parallel, yellowish 

 in water mounts of fresh material. Pellicle of pileus a layer of narrow 

 (2-5 /a) gelatinous radial hyphae with pale bister content and clamp 

 connections at the septa, the hyphae appressed and the layer thin. No 

 hypodermium. Pileus trama of radially disposed hyphae 6-10 p broad. 



Habit, Habitat, axd Distbibution — Scattered to gregarious in a 

 freshly burned area in company with H. conicus, Michigan, July, 



Matebial Studied — Michigan: Smith 41403 (type, near Reese's 

 Bog, Cheboygan County, July 1, 1953), 41432. 



Obsebvations — A very light fire occurred about six weeks before 

 the date of collection. The soil was sandy, and the agaric was abun- 

 dant in the area for a few days following adequate rains, and then was 

 not seen for the rest of the season. It differs from the type of sf)(idi- 

 ceus as we know the latter in the sharp odor and glabrous stipe. 



58 



Hygrophorus spadiceus var. albifolius, var. nov. 



Pileus 2.5-5 cm lotus, convexus, se expandens conico-convexwn vcl 

 campanula-turn et acute umbonatus, viscidus, "Dresden brown" discus 



