A. LUTEUSWith. vol. 3. 344.
A. CRETACEUSBulliard 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 colour, 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.
