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NEW AND RARE BRITISH HYMENOMYCETOUS FUNGI.
By Worthington G. Smith, Esq., E.L.S.
(Plate XCV.)
The warm and showery spring of the present year was highly
favourable to the growth of fungi. Many species appeared that had
not been observed for years previously, and others that were either
altogether new to science or new to Britain : of the species that came
under my own observation I select the following for the ' Journal of
Botany.'
A. (Flammnla) decipiens, n. sp. ; caespitose; pileus 1 inch across,
convex, fleshy, minutely squamulose, dry, rich brown, becoming
pallid, umbo almost while ; stem 2 in. high, often swollen, twisted,
striate, attenuated downwards, rich tawuiy ; gills crowded, moderately
broad, traly decurrent, luminous brown ; flesh within golden-yellow,
bright brown at base; spores bright tawny, ring none.
On the 13th June of the present year I first found this curious species
in Epping Forest; it was growing abundantly about burnt gorse stumps,
on burnt earth and charcoal, in open places in the forest, in company
with A. (Flam)iiidaJ carbonarins, Fr. Like the last-named species, it
is inclined to be fasciculate, and the groups of one and the other were
so intimately mixed up and confused together that it was impossible to
gather one without the other. Added to this, the pilei of the two spe-
cies greatly resembled each other in colour, and the peculiar habitat on
eharcoal and burnt earth was the same. Owing to these deceptive pe-
culiarities, and because Mr. Berkeley, to whom I sent specimens, believes
it to be undescribed, I propose to describe it under the name of Agaricus
decipiens. Though at a first glance it resembles A. carbonarins, it is
on examination a totally different- thing, as may be seen by referring
to 'Journal of Botany,' Vol. VI. t. 75. It differs greatly in the
attachment of the gills, for whilst they are adnate in A. carhonarius,
which belongs to Fries' second section of Flammula (Li/brici), they
are decurrent in the new species, which belongs to Fries' fourth section
of Flamtnula (Sapinei), and is nearly allied to Agaricus hybridus,
picreus, sapineus, etc.
A. (Tricholorna) brevipes, Bull. ; Fries; Icon in Mus. Ac. Sc. Holm.
A'OL. VII. [SEPTEMBER 1, 18G9.] T