North American species of Mycena.

EUMYCENA: DEMINUTIVAE

113

very narrow and actually may be only the connecting hyphae which
bind the larger cells together. The stipe, typically, is inserted on undecayed fallen leaves and is entirely glabrous. If a group of leaves
is matted together, however, and the fruiting body arises within the
mat, the portion of the stipe covered by the leaves will very likely be
sparsely strigose. The size of the pileus as I have observed it varies
greatly. Pilei over 6 mm. broad, however, are rare. The large form
I illustrated previously (1935) is seldom found.
41. MYCENA MIRATA (Pk.) Saccardo
Syll. Fung., 5: 290. 1887
Agaricus (Mycena) mirata Peck, Bull. Buffalo Soc. Nat. Sci., 1: 48. 1873.
Prunulus miratus Murrill, North Am. Flora, 9: 327. 1916.
Mycena supinoides Kuhner, Bull. Soc. Linn. Lyon, 10: 124. 1931.
Illustrations:
Plate 8 C; Text fig. 8, nos. 3-4 (p. 111).
Smith, Am. Journ. Bot., 22, pi. 3, fig. 3.
Pileus 2-7 (10) mm. broad, evenly conic with an appressed margin
or campanulate, sometimes convex and with or without a small
papilla, surface even or slightly rugulose around the papilla, pruinose
but soon naked and moist, translucent-striate, becoming sulcate,
color dark grayish brown over the disc, margin gray or whitish, fading
to drab or pallid in age, the disc remaining darker ("fuscous" on the
disc, shading to "hair brown" or "avellaneous" toward the pallid
margin); flesh very thin, grayish to pallid, odor and taste not distinctive, usually mild or nearly so; lamellae broad, narrowly adnate,
usually toothed and often seceding, subdistant to distant, 9-13 reach
the stipe, one to three tiers of lamellulae, white to grayish, edges even
and pallid; stipe 2-6 cm. long, filiform, flaccid, flexuous, white or
grayish, or at least pallid above, when young covered with a faint
bloom, either inserted on the substratum with a characteristic strigoseechinulate base or rooting and white-strigose (the manner of attachment varies with the substratum).
Spores 9-12 X 5-7,u, subellipsoid to ovoid, faintly amyloid;
basidia two-spored, sterigmata 7-8 X 3-4.5,, pleurocystidia absent
or rare, similar to cheilocystidia; cheilocystidia abundant, hyaline,
clavate to globose with a short pedicel, the head studded with numerous short rodlike projections which sometimes become quite elongated
and branched; gill trama homogeneous, composed of enlarged cells,