Friesia IV, 3

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(J. Flesh not smelling of almonds, often with a faint smell of
ink or carbolic. Schåff'er re action negative. Spores small,
4-6X3-4p.
VIII. The Xanthoderma group. Pileus white, brown, or
dark grey, often squamose. Underside of ring as a
rule with coarse scales along the edge. Marginal
cystida balloon-pearshaped. Medium-sized species in
gardens, parks, or woods Type P. »omthoderma.
b. Spores large (mostly c. 9-12 X 5-7J1). Pellicle becoming less
yellow on friction.
IX. The Macrospora group. Pileus white or yellow with
concolorous or yellow scales. Underside of ring
areolately squamose. Flesh thick, somewhat rufescent
when broken, often with a transient slight
smell of almonds, then with a disagreeable smell
(urine, mouldy straw, and the like). Schåffer reaction
capricious. Large, compact species in pastures
or woods Type P. macrospora.
2. Minores Fr. Ring slightly developed: small, thin, without a scaly
underside, simple. Small species (pileus usually 3-5 cm broad) .
Spores small (4-6p long). With marginal cystidia (see, however,
P. comtula).
X. The Semota group. Pileus white, yellow, or lilac,
often squamose. Ring simple. Flesh thin, smelling
of almonds. Schåffer reaction positive. Small species,
often in woods Type P. sernota .
N o t e. The rather small P. silvicola whose spores are small (5-6 X
3--4 fl) and often with only slight remnants of the veil on the underside
of the ring, belongs to the A r v ensis qrowp, while the often just as la rge
P . purpuraecens, owing to the slightly developed, simple ring and other
characters, has its natural pl ace in the Semot a group.
1. MAJORES FR. p. p.
VI. TUE AUGUSTA GROUP
Large, slender species. Pileus beautifully brown-squamose on a
white or yellow ground. Gills somewhat narrow, paIe or flesh-colour,