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

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The North American Species of Pholiota

data and drawings are all taken from McClatchie's material. We suspect
that when properly redescribed this species will be found to have other
features than given in McClatchie's notes to distinguish it. There is no
reason for referring the species to Cortinarius as Kauffman did, since the
spores in the material studied by us were smooth. Kauffman in his notes,
however, (unpublished) indicated that the spores were "under high
power-roughish." This may have been an artifact, since his "high
power" was a 3 mm dry objective, not an oil immersion lens. However,
it cannot be denied that the possibility of a description based on two
different species exists. If this can be proven the species should be
abandoned as a source of confusion. At present, however, on th basis of
the spore features it is possible to recognize it. The material we have
studied is clearly a Pholiota.
190. Pholiota harenosa sp. nov.
Illustrations: Text figs. 428-430.
Pileus 2-3 cm latus, convexus, viscidus, glaber, subcinnamomeus.
Lamellac confertae angutstae vel sublatae, cinnamomeae. Stipes 2-2.5 cm
longus, 1.5-2.5 mm crassuts, sursumr citrinus, deorsum sutbcinnamomeus,
sparse fibrillosus. Sporae 6-8.5 x 4-4.5 /a. Pleurocystidia 45-70 x 9-14 pI.
Specimen typicum in Herb. Univ. of Mich. conservatzim est; legit prope
Milford, Mich. 16 Nov. 1958, Smith 60810.
Pileus 2-3 cm broad, broadly convex, "Sayal-brown" to "cinnamonbrown," viscid, glabrous. Context pliant, concolorous; odor and taste
mild or slightly farinaceous.
Lamellae adnexed, close, narrow to moderately broad, "Sayal-brown"
to "cinnamon-brown," edges even to minutely eroded.
Stipe 2-2.5 cm long, 1.5-2.5 mm thick at apex, equal or narrowed
downward, pale citrine near apex, pale dull cinnamon at base, lower part
covered with very faint remains of a veil.
Spores 6-8.5 X 4-4.5 /,, smooth, apical pore minute; shape in face
view elliptic to slightly ovate, in profile obscurely inequilateral to subelliptic; color in KOH rich cinnamon and groups of spores dark cinnamon, paler cinnamon or more ochraceous in Melzer's reagent; wall about
0.25-0.4 /. thick.
Basidia 20-25 (27) x 5.5-7 a/, 4-spored, narrowly clavate (base 3-4.5.u broad), yellowish to hyaline in KOH and yellowish in Melzer's reagent.
Pleurocystidia 45-70 x 9-14 p,, fusoid-ventricose, apex obtuse, some
coated with mucilage (?) as first revived in KOH but soon smooth, wall
thin (less than 0.3 /u), content yellowish to hyaline. Cheilocystidia (28)
32-56 X 6-12 (14) pu, broadly fusoid with obtuse apex to fusoid-ventricose,
rarely subcapitate, thin-walled, smooth, hyaline to yellowish in KOH.
Caulocystidia in fascicles, subfusoid, fusoid-ventricose to nearly clavate
and 33-50 X 9-13 p, some 48-70 X 4-6 p, and cylindric-acuminate, walls