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

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The North American Species of Pholiota

should appear very similar. It is possible that P. muricata and P. erinaceella have been confused in the Michigan flora as Singer (1955) describes P. erinaceella as having yellowish gills. Smith confirmed this
identification. At that time a species more like P. granulosa was passing
under the name P. muricata in the United States.
MATERIAL EXAMINED: MICHIGAN: Harding 109; Shaffer 2208; Smith
33-788, 21770, 25869, 33222, 33229, 37177, 39112, 39458, 41667, 41760,
41769, 41809, 41998, 49691, 49928, 50474, 57637, 57985, 61340, 66989,
67154, 67028, 73029; Thiers 704. MARYLAND: Smith 73064. NEW
YORK: Kauffman 9-2-21; Peck, Lake Pleasant (type); Smith 228.
13. Pholiota pseudosiparia sp. nov.
Illustrations. Text figs. 13-15.
Pileus 5-8 mm latus, late convexus, siccus, granulosus, sordide fulvus.
Lamellae latae, confertae, adnatae, pallide luteae. Stipes 1-2 cm longus,
0.5 mm crassus, sursum pallide ochraceus, deorsum subfulvus. Sporae
7-7.5 ai longae, 4-4.5,u crassae. Pleurocystidia desunt. Cheilocystidia 28 -40 x 7-11 uL, filamentoso-capitata. Specimen typicum in Herb. Univ. of
Mich. conservatum est; legit prope Pellston, Mich., 6 Juli, 1953 Smith
41513.
Pileus 5-8 mm broad, convex to broadly convex, the margin straight,
surface dry and granular from cells of the epithelium, many of these
becoming free in the mounts; colors dingy ochraceous to dull tawny and
fading to pale yellow or cinnamon buff. Context yellowish, thin, soft,
odor and taste none.
Lamellae close broad, adnate, yellowish young, then ochraceous
tawny, edges minutely crenulate.
Stipe 1-2 cm long, 0.5 mm thick, equal, pallid ochraceous and
pruinose above, dingy tan and pubescent below, the hairs delicate.
Spores 7-7.5 x 4-4.5,u, oblong to subovate in face view, in profile
somewhat bean-shaped, smooth, tawny in KOH and wall slightly thickened (spore not collapsing readily), apex with a minute hyaline spot as
a rudimentary pore.
Basidia 4-spored, hyaline to yellowish in KOH, clavate, 26-30 x
5-7 u.. Pleurocystidia none. Cheilocystidia 28-40 x 7-11,u, flexuouscapitate to narrowly clavate and some fusoid-ventricose, hyaline in KOH,
smooth, thin-walled. Caulocystidia abundant, often a terminal cell in a
series of 2-3 cells, 26-40 x 7-11 (16) /u, somewhat cystidioid (narrowed
to an obtuse apex), walls thin and ochraceous, smooth to minutely
asperulate.
Gill trama of inflated hyaline cells with thin smooth walls, hyphae
more or less subparallel; subhymenium a narrow indistinct zone. Pileus
cutis an epithelium of globose to ovate cells with incrusted pigment, walls
yellow in KOH, thin. Clamp connections present. All hyphae inamyloid.