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next trip, we are hitting NZ in May!
Amanitas are the only gilled fungi that develop in a solid lump and have to split apart in order to finish becoming a mushroom. Their gills always have to separate from a stem or an annulus or both. The other agarics have gills that grow from a small developing cap dowward into empty space and have a free bottom edge of the gill from the get go.
I was referring to the black annulus, assuming black spores dropped on it. Very cool info about the “velcro” gills! I wasn’t aware of this.
Beautiful photo. 96% confidence. What more may one ask in a MO observations?!
The source of the dark cells (the “velcro”) is the same in both cases.
Randy meant the black pigments on the upper annulus, it kind of looks like a black spore deposit. :)
from the gill edge that have been left on the paper with the spore print. The tissue on the gill edges in Amanita serves a very specialized purpose…no other agaric needs such a thing. Because amanitas develop in a solid lump, there has to be some mechanisms be which the gills can separate from the stem…otherwise, they would be ripped to pieces. The gill edge tissue is sort of a single use velcro that allows the gills to gracefully separate from the stem. The raised lines on the top of an amanita’s stem and/or on the upper surface of an amanita’s annulus are composed of the same sort of cells (the opposite side of the single use velcro).
The cells in amanitas are sometimes not pure white, but the spores have never yet been found to be black (except under the scope in Melzer’s Reagent) in any Amanita.
This even has black spores? I never knew such a species of Amanita existed.
I’ve never seen something so intricate and beautiful!
Created: 2011-04-27 02:33:12 MST (-0700)
Last modified: 2011-11-28 10:19:14 MST (-0700)
Viewed: 309 times, last viewed: 2018-04-19 07:08:26 MST (-0700)