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it, F or his variety M a i r e eited C o o k e's figure of P. cretacea (Illustr.,<br />
t.524, no. 542, 1881-1891), whieh perhaps merely represents<br />
a sun-eraeked and darkened P. xanthoderma and therefore eannot<br />
be Sehaffer's "Rebhuhnform" of P. m eleaqris, though Sehaff<br />
e r once thought so. Further, P. jZavescens Rich. et Roze (Atl.<br />
Champ., p.42, t. XVII, figs.17-21, 1885), which is identieal with<br />
P. cretacea v. jlavescens sensu Quel., Fl. myc., p.73, 1888, and which<br />
is mentioned by R yd b e r g from Sweden under the name of P. [lavescens<br />
Gill. as differing from P. xanthoderma by its flesh turning<br />
.a mueh deeper yellow, must be regarded as a variety of the iatter<br />
(or as a very closely allied species), while on the other hand P. [lavescens<br />
Gillet is simply P. silvicola (Vitt.) .<br />
2. Psalliota phaeolepidota sp. n.<br />
Plates xx b and XXXII.<br />
D i a g n o s i s. Pileus 5-8 cm, campanulatus, vel hemisphaericus<br />
et subtruncatus, dein expansus et subumbonatus vel in medio applanatus,<br />
serieeo-nitens, in fundo albido diffracto-squamulosus, squamulis<br />
numerosis, minutis, pilosis, rufescentibus, medio sine squamulis,<br />
r ufo. LameIlae liberae, confertae, angustae, e pallidis pulchre incarnatae,<br />
tandem f uscae, acie sterili, pallida, denticulata. Stipes 5-8 cm<br />
X 10- 12 mm, basi 20 mm lat a, plus minusve marginato-vel rotundato-tuberculata,<br />
radice filiformi (1 mm cr.) prae ditus, sursum att<br />
enuatus, cavus, niveus, interdum tamen supra annulum leviter rose<br />
us, sericeo-nitens, nudus. Annulus superus, albus, sporis saepe fuscus,<br />
membranaceus, plerumque lacerus, latus, r eflexus, supra subt<br />
iliter striatus, infra squamis in zona dispositis, tenuibus, angustis.<br />
fere linearibus, fuscis ornat us ; interdum pars inferior annuli radialiter<br />
fissa. Car o tenuis, alba, disseeta obsolete incarnata, praecipue<br />
in stipite, ub i interdum in basi rufo-maculata vel flavo-tincta, odore<br />
debili, nonnumquam nauseoso, natura incerta, nee aeidulo, nee amygdalino<br />
(ut in P. meleagri?).<br />
Sporae aeervatim fuscae, ovatae, uniguttulatae, 4.5-6 X 3-3.5p.<br />
Basidia 4-sterigmatica, elavata, 20-23 X 6-7(-8) p. Sterigmata<br />
2.5p lon ga . Cystidia aciei lamellarum numerosa, fasciculata, vesiculos<br />
a vel lat e clavata, hyalin a , 18- 50 X 12-34p.<br />
Gregaria in silva minore sub arboribus frondosis, in solo fere<br />
nudo. Dania. Autumno.<br />
Differt a speciebus in "Silvati ca-group" stipite toto nudo non<br />
nigrescente, a P. meleagri cystidiis maieribus.
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