Notes: Under trees, in patches, somewhat linear in nature so might be partial fairy ring.
Disagrees with calyptroderma sp description:
Range is given as california to western canada, this is in southeast us
Cap is described as sticky when wet, cap is slick but not noticeably sticky
Universal veil described as leaving a large broad sheetlike patch on cap, generally caps of unveiled mushroom were conspicuously clean of remnants
Agrees with calyptroderma sp description:
cap wide, egg shaped when young becoming convex to flat, margin radially lined, smooth, orange to yellow towards margins,
Gills slightly attached, close, moderately broad, white
Universal veil white, leaving large thick persistent saclike cup.
Partial veil membranous, cream yellow, leaving fragile pendant ring on upper stalk.
Found in october, season of amanita calyp. Given as september to november.
stalk & partial veil flesh has very slight tendency to bruise or dry safron color, young stipe center appears almost hollow with cottony filling. No noticeable “root” to stipe/veil base.
Spore print in progress.
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to the sides of the central cavity of the stipe.
Many amanitas have gills reaching the stipe…the “free” character may not become apparent except in very mature caps…if ever. If you read that all amanitas have free gills, it’s simply not true.
The projection with wedge-shaped cross section that is clearly seen running around the inside of the volval sac is called the “limbus internus” or “internal limb”. It is a property of all amanitas…powdery in those with powdery volvas and membranous in those with membranous volvas. Notice that in section Caesareae the upper tip of the wedge-shaped cross-section is attached to yellow (felted) material which is the source of yellowish patches that you may see in some specimens distributed over the stem below the annulus. The position of the internal limb on the inside of the volval sac is a useful character (although somewhat variable) in sections Caesareae and Vaginatae of Amanita.
Thanks for offering to send some dried material.
Wilco re spec. quarter.
it should not be from an over mature cap. If the gills are too young they may have few spores with some abnormally large. If the gills are too old, they will have spores that are substandard in terms of size. If you can spare a half of a complete mushroom or one quarter of one, then we can look at examples of all tissues…if we need to for some reason.
If you only send a couple of gills, we may not have enough for both study of spores and extraction of DNA. It’s possible that more than one lab will want to see the DNA from your material; so we ask that you consider sending a quarter of a fruiting body or more.
Reviewed arkansana sp… It does seem more consistent.
Partial veil for mingo nwr specimen appears conspicuously thicker than current specimen, veil of which is membranous and thin, but does darken safron upon handling as suggested. Gills are also not completely free but very slightly attached.
Section of volva picture added. Cottony filling was present but retracted to inner stipe wall upon sectioning. Inner volva basal stipe ring I mentioned in updated comment is visible at bottom.
Btw, ret: have you ever observed a deformity on cap top above a stipe such as pictured in image 3? I’ve come across aborted entolomas, lobster fungi, bolete parasitized, etc but haven’t seen a deformity quite like this. I find it curious.
Is dried gill material from younger or older specimen more conducive to examination? Your preference if any?
than in the days when the Audubon guide was first published.
I’d suggest that you take a look at A. arkansana, which is pretty much restricted to the SE U.S. in terms of range.
Try this link:
The white gills, cap color, stipe color, partial veil color, absence of a patch on the cap, and longish marginal striations (grooving) all are fairly good matches with A. arkansana.
If you can send me the dried materila we can check the spores.
My address can be found here:
Upon reviewing the aud. sp. description, caesarea is a better fit in regards to both the clean cap and the “stuffed” stipe (though “stuffed” begs the question with what?), and the “fairy rings or scattered”. Also as we both pointed out the range of calyp. is inconsistent (thigh I always wonder about range based descriminations absent morphology).
Caesarea is less consistent with the aud. sp. description regarding color and stipe thickness (stipes were more consistent with 3/4" -1&1/4" calyp. than 1/8" to 3/4" caesarea although they are close to or at the high end of the stated range for caesarea. The cap wasn’t sticky.
Re color, we had copious rain so perhaps the orange w/o much red tone was due to that(?)
I reviewed the linked caesarea sect. description you linked. Good lord thats a lot of hypothesized species! :)
Re color/margin lining on young specimen:
Center orangish becoming yellowish toward margin, lining becoming noticeable around 60% of curvilinear distance from center to margin, ridged/prominent around 70%.
Also, water sitting on cap top and then poured off produces a orangish red “tea”. One adult cap was found with unusual growth projecting above cap from exactly above underlying stipe (third image).
Saclike cup is tough, rubbery, somewhat thick (~1.5mm est), and with an inner cup attached at stipe base and up to ~30% of saclike cup height to top margin.
Taste very mild, unremarkable but present, odor not noticeable.
About 20% to 30% of gills bifurcate or include a partial gill from 30% gill span outward. Bifurcated gills are about 10% to 20% (about as frequent as partial gills to somewhat less frequent).
So…a photograph will be really important.
If you can’t provide a photograph, then try describing all the colors you see on the cap and where you see those colors.
What is the color in the center? What is the color over the grooved area at the edge of the cap? How much of the distance from the edge to the center is occupied by the grooves? (Half? Quarter? Third? 10%?)
Is the stem only one color or are there patches of one color while the rest of the surface is a different color? What colors do you see on the stem?
There are an unknown number of different species of sect. Caesareae in the SE U.S. So we are going to need quite a bit of information to figure out which one you have.
Maybe you even have one that no one has yet recognized as distinct form the others.
It will be interesting to know more about what you have found.
Created: 2012-10-16 17:18:26 PDT (-0700)
Last modified: 2016-11-21 08:44:29 PST (-0800)
Viewed: 101 times, last viewed: 2016-11-21 08:44:29 PST (-0800)