306 SECTION HYGROPHORUS 



and cedar-pine (mixed), and oak woods, Alabama, Florida, Georgia, 

 Kentucky, and Tennessee, October-January. 



Material Studied — Alabama: Hesler 22261. Florida: Hesler 

 20245, 21051. Georgia: Hesler 21082, 21605. Tennessee: Hesler 3144, 

 4466 (type, under pine, Knox County, Dec. 2, 1934), 4467, 8444, 8453, 

 10102, 10949, 13026, 13035, 13047, 23556. 



Observations — The golden-yellow tips of the scales over the upper 

 portion of the stipe distinguish it at once. The change in color which 

 they undergo indicates a relationship of the variety to H. tephroleucus 

 rather than to H. pustulatus, although the pileus surface has the 

 characters of both. 



185 



Hygrophorus pustulatus ( Fr. ) Fr. 



Hymen. Eur., p. 411. 1874 



Agaricus pustulatus Fr., Syst. Myc, p. 34. 1821. 



Limacium pustulatum (Fr.) Kummer, Fiihr. in Pilzk., p. 119. 1871. 



Illustrations : 



Bresadola, Icon. Myc, tab. 321, fig. 2 (as f. minor) . 

 Juillard-Hartmann, Icon. Champ., pi. 49, fig. 2. 

 Lange, Flora Agar. Dan. 5, pi. 162C. 



Pileus 2-4.5 cm broad, convex, at times papillate, margin inrolled 

 and cottony when young, becoming plane, arched at maturity, ashy 

 with a darker brownish disc (near "buffy brown"), viscid, glutinous 

 when wet, somewhat virgate with radiating fibrils, opaque. Context 

 soft and white, rather thin, tapering slightly to the margin; odor and 

 taste not distinctive. 



Lamellae somewhat decurrent, bluntly adnate, close to subdistant, 

 pure white, becoming narrow (4-5 mm). 



Stipe 6-9 cm long, 5-8 mm thick, whitish, equal or slightly en- 

 larged below, solid or stuffed at the apex, lower portion subviscid to 

 viscid from the remains of a thin gelatinous universal veil, dry and 

 covered by dark-gray punctate points above. 



Spores 7-9 X 4-5 fx, ellipsoid, smooth, yellowish in Melzer's rea- 

 gent. Basidia 46-61 X 6-8 /n, 2- and 4-spored. Pleurocystidia and cheilo- 

 cystidia none. Gill trama divergent, hyphae 4-9 fx broad. Cuticle of gela- 

 tinous, fuscous hyphae, which are narrow (3-4 /*), erect to semi-erect, 

 at times repent, usually forming an ixotrichodermium, more rarely an 

 ixocutis. No hypodermium differentiated. Pileus trama of radial hyphae, 

 more or less parallel. Clamp connections present on the cuticular 

 hyphae. 



Habit, Habitat, and Distribution — Gregarious under fir and 



