A monograph on the genus Galerina Earle / by Alexander H. Smith and Rolf Singer.

Smith * Singer

307

distinguish it along with the more abundant larger pleurocystidia. For a
comparison with G. mainsii see that species. In some collections, Smith
40300 for example, the stipe darkened somewhat, becoming bay brown
below, and the pleurocystidia were narrower (8-12 2n). It is possible that a
distinct variety exists, based on these characters, but more data are needed.
Ruth Oswald sent a specimen from Oregon made in Oct. 1955, which
obviously had a stipe which darkened markedly in the basal region and had
the narrow subacute pleurocystidia. She noted that the flesh was red in
KOH and this change was present in the revived material, though it soon
faded. We have not noted this reaction in any of Smith's collections.
MATERIAL EXAMINED: W. B. & V. G. Cooke 21376 (MICH). R. Oswald
(6) Willamette, Oregon, Oct. 1955 (var. nov.?); (11) Portland, Oregon,Jan.
1956 (MICH). Smith 39809; 39810; 40102; 40134; 40258; 40300; 40301;
40306; 40309; 40344-type; 40354; 40355; 40356; 40358; 40359; 40360;
40369; 40370; 40371; 40819; 40820; 40824; 40828; 40830; 40832; 40864;
48059; 48073; 48915; 48917; 48921; 51989; 52186 (2-spored).
182. Galerina fontinalis Smith, sp. nov.
Pileus 5-10 mm latus, udus ochroleucus, lamellae distantes, decurrentes, latae; stipes 20-25 mm longus, 2-2.5 mm crassus, concolor, deorsum
sparsim fibrillosus; sporae 9-12 X 5-6 /L; pleurocystidia 45-60 X 10-15 iu,
fusoide ventricosa; cheilocystidia similis. Specimen typicum legit prope
Payette Lakes, Idaho, 25 Jun 1954. Smith 44163 (MICH).
Pileus 5-10 mm broad, pale butterscotch color when moist, striate and
shining, hygrophanous and fading to whitish.
Lamellae distant, decurrent, broad, concolorous with moist pileus
(not pale).
Stipe 20-25 mm long, 2-2.5 mm thick, concolorous with the pileus but
finally darker at the base, pruinose above, with a white fibrillose veil leaving
scattered fibrils below.
Spores (8)9-11(12) X 5-6 ft, somewhat inequilateral in profile, ovate
in face view, wall minutely roughened and smooth plage bounded by a
faint line, dull rusty brown in KOH, apical pore not evident, basidia 2- and
4-spored, 20-24 X 7-8 tt, hyaline in KOH. Pleurocystidia scattered, fusoidventricose 45-60 X 10-15 j, necks often flexuous and apices obtuse, hyaline, thin-walled, occasionally with a secondary septum in the neck. Cheilocystidia similar to pleurocystidia but with more tendency for apex to be
slightly enlarged. Gill trama interwoven. Pileus trama hyaline in KOH and
with a subgelatinous pellicle of narrow appressed hyaline hyphae as revived
in KOH (not viscid fresh). Clamp connections present.
HABIT, HABITAT AND DISTRIBUTION: On wet soil in a springy area along
a road, Payette Lake, Idaho. June 25, 1954. Smith 44163.
OBSERVATIONS: The broad, distant, truly decurrent lamellae cause the
small carpophore to resemble an Omphalina in appearance. The very pale