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AGARICUS VOLVACEUS Bulliard t. 262.
Found in great plenty in the bark-beds of hot-houses about London in the year 1785. The Rev. Mr. Relhan, so well known by his Flora Cantabrigiensis, discovered it in Dr. Harwood’s bark-bed at Cambridge last year, 1794, and, considering it as a great curiosity, very kindly favored me with specimens. The same year I met with it growing in a lane at Peckham, inclining to the appearance of Bulliard’s A. vaginatus. The 21st of August 1795 I found in Earl Spencer’s park at Wimbledon a specimen resembling that figure which is just disengaging itself from the volva, but four times as large, with a lighter-colored pileus [cap], but gills corresponding in color to these; it grew on a very rotten stump of a Lime-tree.
AGARICUS CEPÆSTIPES.
A. LUTEUS With. vol. 3. 344.
A. CRETACEUS Bulliard t. 374.
Not uncommon in bark-beds about London, mostly found of a chalky white, especially when in a half-dry state, to which Bulliard’s name alludes. At Sir A. Hume’s at Wormley-bury in 1793 I observed the bark-bed full of it, all perfectly yellow, agreeing with Dr. Withering’s denomination. As the white and yellow kinds differ in nothing but color, and are undoubtedly the same species, I have named it from the form of the stalk (like that of an onion) which will always characterize this species.