The North American species of Pholiota, by Alexander H. Smith and L. R. Hesler.

290 The North American Species of Pholiota
1. Habitat various but not as above........................................ 2
2. Odor pungent to fragrant; lamellae pale yellow young; many
pleurocystidia with orange red content revived in KOH................................. Stirps Graveolens
2. N ot as above................................................3
3. Stipe 1-3.5 mm thick; pileus 1-3.5 cm wide................... Stirps Scamba
3. Pileus wider and stipe thicker........................................ 4
4. Spore deposit testaceous; taste bitterish....... Stirps Subamara
4. N o t a s a b o v e....................................................................................... 5
5. Pileus appressed-squamulose at least around the disc (see P. paludosella also )..................................................................... S tirp s S tra to sa
5. Pileus glabrous or merely virgate....... Stirps Spumosa
Stirps Sphagnicola
Key
1. Spores 8-10 X 4.5-6.............................. 2
1. Spores 7-9 x 4-4.5.............................................................. 3
2. Gills whitish when young; pileus with reddish or reddish-brown
spotted center; caulocystidia absent... P. sphagnicola
2. Gills very soon yellowish; pileus disc tawny to (lark yellow-brown;
caulocystidia present.................................... P. pabit dosella
3. Pileus tinged flesh color when young and moist, pallid when faded......................................................................... P. sp h a g n o p h ila
3. Pileus orange-fulvous over disc, greenish yellow over marginal area
P. chromocystis
155. Pholiota sphagnicola (Pk.) comb. nov.
Flammula sphagnicola Peck, New York State Mus. Bull. 167: 43. 1913.
Gymnnopilus sphagnicola (Pk.) Murrill, North Amer. Fl. 10: 196. 1917.
Illustrations: Text figs. 339-34 1.
Pileus 1-2.5 cm broad, convex or nearly plane, obtuse or umbonate,
yellowish with reddish or reddish brown often spotted center, viscid,
glabrous. Context thin, white.
Lamellae adnate or with a decurrent tooth, whitish becoming cinnamon color, thin, narrow, close.
Stipe 2.5-3.5 cm long, 1-3 mm thick, whitish, apex slightly whitefibrillose, base white-tomentose.
Spores 8-10 x 4.5-5.5 (6) ut smooth, apical pore distinct and a few
spores seem to have a slight wall thickening around the pore; shape in
face view elliptic to ovate, in profile somewhat inequilateral; color in
KOH tawny to ochraceous-tawny (well colored), in Melzer's reagent
slightly paler than in KOH; wall about 0.3 ti thick or slightly more.
Basidia 4-spored, 20-26 x 6.5-8 /, clavate, yellowish in KOH and