Amanita excelsa (Fr.:Fr.) Bertillon

Litten 723
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Presumptive assignment* Amanita excelsa (Fr.) Kummer
white variant
Pileua 3-5 cm» plane, moist to viscid, glabrous, lacking volval
v remnants, shining waxy white with faint brownish tinge in older
i specimen. Flesh white, thin (about l/4 of gill width at mid-radius).
Hot at all striate.
Gills dose to crowded, narrow, free, developing brownish stains;	I
many short lamellulae.
Stipe 8-9 cm, glabrous, not at all striate, white, developing faint
brown stains, slightly tapering upward to about 7mm thickness at
apex, terete, Superior membranous annul us, persistent. Volval
remnants in substrate too fragile for collection, leaviiig a few	1	\
slight floocose remnants on bulb. Bulb expands smoothly from V	—3—^
base of stipe with no suggestion of a margin but shows slight clefts
at its greatest diameter. Brown stains developing on bulb.
Spores strongly amyloid, subglobose to broadly elliptical,
7,4-8.1 x 6.6-7*4 microns.
August 1, 1976, 2 carpophores at base of Be tula papyerifera alongside
footpath to Lit ten house, Marlboro, Hancock County, Maine.
(Spore print and color photo with collection.)
(Specimens collected week earlier from same mycelium deposited also
** "Litton 725" in personal herbarium of amanita specialist L. J.
852 Stone Road, Rochester, H.Y* 14616.)
HERBARIUM OF
THE UNIVERSITY OF MASSACHUSETTS
MYCOLOGICAL COLLECTIONS
Amanita excelsa (Fr.) Kummer
white variant
at base of Betula
Lit tan house, footpath, MarIboro,Maine
1 August 1976
Coll. & det. W. bitten # 723