17 6 THE AGARICACEAE OF MICHIGAN 



(ee) Pileus 1-3 cm. broad. 



(f) Tough; pileus tawny-yellowish, not fading in age. 182. 



H. lactus Fr. 

 (ff) Fragile; pileus wax-yellow to yellow. 



(g) Gills truly decurrent; pileus and stem fading to whit- 

 ish in age. 181. H. nitidus B. & C. 

 (gg) Gills adnate-decurrent; pileus not fading. 172. H. 

 ceraceus Fr. 

 (aa) Pileus not viscid nor glutinous. 



(b) Golden-orange-yellow; fragile; pileus and stem markedly fading; 



gills adnexed, deep orange-yellow. 179. H. marginatus Pk. 

 (bb) Pale yellow; pileus 6-12 mm. broad; stem darker. H. parvulus 

 Pk. 

 (AAA) Plant vermillion, scarlet, pink, flesh-color, rufous or shades 

 of these, 

 (a) Pileus viscid or glutinous. 



(b) Stem stout; pileus rather large, compact, firm, 

 (c) Gills not becoming reddish-spotted. 



(d) Pileus scarlet, crimson or orange; stem viscid, in tamarack 



swamps. 160. H. speciosus Pk. 

 (dd) Pileus tinged flesh color; stem dry. 164. H. pudorinus Fr. 

 (cc) Gills becoming reddish-spotted. 163. H. Russula (Fr.). 

 (bb) Stem medium or slender; pileus fragile. 



(c) Pileus 1-2 cm., pinkish-flesh-color; stem slender and viscous. 



183. H. peckii Atk. 

 (cc) Pileus 3-7 cm., scarlet or vermillion; stem moist, not viscid? 

 (d) Gills arcuate-adnate; base of stem yellow or orange. 176. 



H. coccineus Fr. 

 (dd) Gills slightly adnexed; base of stem white; spores larger. 

 177. H. puniceus Fr. 

 (aa) Pileus not viscid nor glutinous. 



(b) Pileus 1-3 cm. broad, subglabrous to minutely scaly, vermillion 



to reddish-yellow. 175. H. miniatus Fr. H. cantherellus Schw. 



(bb) Pileus 3-7 cm. broad, flesh-color to tawny-reddish, glabrous. 



168. H. pratensis Fr. 

 (bbb) Pileus 3-10 cm. broad, salmon-rufous to testaceus; hoary when 

 young; gills decurrent. 167. H. leporinus Fr. 

 (AAAA) Plant neither white, yellow, orange nor bright red. 



(a) Pileus and stem glutinous or viscid. [See also (aa) and (aaa)] 

 (b) Gills pure white; pileus grayish-brown, cinereous or fuliginous, 

 (c) Stem hollow, fuliginous. 185. H. unquinosus Fr. 

 (cc) Stem solid, white or whitish. H. fuUgineus Frost, 

 (bb) Gills not pure white, or at least changing in age, adnate-de- 

 current. 

 (c) Pileus purplish-red, virgate with darker fibrils; stem and gills 



concolor. H. capreolarius Bres. 

 (cc) Pileus some shade of brown. [See also (ccc)] 



(d) Stem hollow, slender; plant fragile; pileus olive-brown, 



1-2 cm. broad. H. davisii Pk. 

 (dd) Stem solid, plant firm, larger, 

 (e) Growing in sphagnum swamps; pileus white, covered with 



yellowish-brown gluten. H. paludosus Pk. 

 (ee) In grassy woods; pileus smoky-olive, 3-6 cm. broad; spores 

 12 x 8 micr. H. limacinus Fr. 

 (ccc) Pileus dark brownish olivaceous. 162. H. olivaceoalbus Fr. 

 (aa) Pileus with a gelatinous, subviscid pellicle; stem dry. 



(b) Pileus violaceous to smoky-lilac, hygrophanous, fading to gray 



ish; stem stuffed to hollow. 174. H. pallidus Pk. 

 (bb) Pileus livid-rufescens to brownish, hygrophanous; stem stuffed 



to hollow; gills decurrent. 173. H. colemanniamts Blox. 

 (bbb) Pileus grayish-brown or blackish-brown; stem solid, 

 (c) Spores 6-8 micr. long. 166. E. fusco-albus var. 

 (cc) Spores 10-12 micr. long. H. morrisii Pk. 



