t
•r.
198 AGARICACEÆ Psathyrella,
or purplish below. V. fugacious or obsolete. G. adnato-
ascending, crowded, grey and black, edge whitish.
Pastures, rich ground, horse-dung, amongst grass ; common. June-Nov.
I f X 4i X è in.
904. P. ealiginosus Gill, (from its gloomy colour ; caligo, gloom) abc .
P. obtuse, even, smooth, ochreous-brown or grey. St. naked,
rufescent-brown, lighter above. V. feeble or obsolete. G.
adnato- or adnexo-ascending, ventricose, fuliginous-black.
Rich pastures, lawns. Oct.-Nov. A X 2| X fg in.
905. P. subbalteatus Sacc. (from the somewhat zoned margin of the
pileus ; balteus, a band) a.
P. obtuse or subumbonate, hygrophanous, irregular, subwrinkled,
dull fawn or pale ochreous ; mid. pale sienna. St. splitting
longitudinally, white-fibrillose, red-brown and ochreous above,
pale sienna below. G. adnato-ascending, ventricose, brownish ;
edge toothed, white.
Cæspitose. Borders of fields, on the ground. Sept.-Oct. i X 3 f X xV iu.
906. P. aeuminatus Quél, (from the sharp apex of the pileus ;
acuminatus, sharp pointed) a b.
P. even, shining, flesh-tan ; mid. faint sienna. St. pruinose, tan
above, fuscous below. G. adnexo-ascending, crowded, grey
and black.
Dung, roadsides. Oct.-Nov. J X Ij X J in.
907. P. flmieola Quél, (from the usual habitat ; fimus, dung, colo, to
inhabit) abc.
P. obtuse, smooth, opaque, fuliginous-grey, clay-hoary when dry ;
marg. with a fuscous zone. St. slightly silky-striate, white-
pruinose above, dingy below. G. adnato-ascending, ventricose,
grey and fuliginous.
Dung, rich pastures ; rare. Oct. 4 X 3J X x \ in.
908. P. einetulus Sacc. (from the zone round the margin of the
pileus ; cinctus, a girdle) a.
P. even, smooth, reddish-cinnamon ; marg. zoned, dark brown.
St. dull fuscous. G. ascending, adnexo-free, dusky- or olivaceus-
black or slate.
Dunghills after rain. June-July. 2f x 4J X J in.
XLI. PSATHYRELLA Quél.
(Diminutive of Psathyra.)
Veil almost obsolete. Hymenophore confluent with, but heterogeneous
from the cartilaginous stem. Pileus membranous, striate ;
margin not exceeding the gills, straight and at first adpressed to the
stem. Stem central, fistulose, simple. Gills adnate or free, not
variegated or becoming fuscous or purple, not deliquescent. Spores
black or nearly so. (Fig. 50.)
The species grow on rich ground, in gardens, by hedges and
stumps, sometimes on wood.
Ml
Psathyrella AGARICACEÆ 199
Psathyrella agrees in structure with Mycena, Nolanea, Galera and
Psathyra. Species 909—920
Pileus conical to campanulate. Stem tense, straight, fistulose.
909—914
Pileus hemispherical to campanulate or conical. Stem flexuous,
pruinate at the apex, fistulose. 915—920
Entire and in section.
909. P. subatrata Gill, (from the blackish pileus ; ater, black) a h.
P. obtuse, subexpanded, umber-rufescent, pallid-rufescent when
dry. St. smooth, whitish. G. adnexo-ascending, crowded,
fuliginous, blackish-umber.
Gregarious. Rich ground, grassy places, woods. Sept. 2j X Sl X J in.
910. P. graeilis Quél, (gracilis, slender) abc.
P. obtuse, smooth, dark- or pale-fuliginous or livid with pale
shades of rose, tan when dry. St. smooth, whitish. G. adnate,
cinereous-blackish ; edge rose.
Gregarious, waysides, hedgerows, etc. ; common. July-Oct. i j X 4 X J in.
911. P. hiaseens Quél, (from the pileus opening in furrows ; hiasco,
to gape) a.
P. expanded, obtuse, thin, cracked-revolute, white or warm tan,
becoming pale tan-yellow ; mid. pale sienna. St. smooth,
whitish. G. adnate, distant, black.
Grassy places, hedgerows, damp woods, rubbish-heaps ; rare. Nov.
I j X 3J X J in.
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