One of the means of distinguishing this entity from the Amanita jacksonii-like taxa of the eastern U.S.A. is the lack of an umbo on the pileus. It also appears that the cap color is more strongly orange than in A. banningiana, which, however, has spore size and shape similar to those of the present species.
Also instructive is the comparison of sporographs is provided below.
Some preliminary DNA work indicated that this species was distinct from A. banningiana; however, the results were apparently not retained by the lab doing the work. Fresh material of this taxon is greatly desired by the editors and their colleagues.
—R. E. Tulloss
Information to support the viewer in reading the content of "technical" tabs
can be found here.
1. Amanita sp-N12, South Hollow, Olive Twp., Ulster Co., New York (state), U.S.A.
RET - (1) South Hollow, Olive Township, Ulster County, New York (state), U.S.A.
Spore data for collections provisionally identified as: Amanita sp-N12 Tulloss
Each spore data set is intended to comprise a set of measurements from a single specimen made by a single observer;
and explanations prepared for this site talk about specimen-observer pairs associated with each data set.
Combining more data into a single data set is non-optimal because it obscures observer differences
(which may be valuable for instructional purposes, for example) and may obscure instances in which
a single collection inadvertently contains a mixture of taxa.