Observation 11278: Amanita Pers.

When: 2008-09-18

Collection location: Japan [Click for map]

Who: forestwander

No specimen available


Proposed Names

-75% (2)
Recognized by sight: at least one of those big lepiotas…peaked cap and cap ornamentation more lepiota-like, bruising red also more typical of a lepiota. I’ll send it to Else…
82% (1)
Used references: Species pages mentioned in comment below. R
30% (2)
Recognized by sight: can’t be section amanita with that appendiculate margin; from Bas’ description of hongoi, and photo matching, esp. the brownish-red-staining on the stipe, I’d call it hongoi until scope work proves me wrong (or right!).

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= Observer’s choice
= Current consensus


Add Comment
What’s going on with the cap ornamentation on this mushroom?
By: Debbie Viess (amanitarita)
2008-09-20 11:50:29 CDT (-0400)

Very curious the way it is breaking up, not wart-like at all. Just weather related? Or are these questions impossible to answer without a specimen in hand and under the scope?

I updated the relevant Amanita Studies web pages…
By: R. E. Tulloss (ret)
2008-09-20 10:28:52 CDT (-0400)

After finding a few typos and a missing description of volval remnants [on the stipe of A. miculifera], I updated several of the Amanita Studies pages on Japanese lepidellas. I am pretty sure that, this species is a lepidella and that it will match one of the species with many rings of small warts around the lower stem and base, i.e., same suggestions as I made previously.


Amanita hongoi or A. virgineoides? In either case, not young and fresh.
By: R. E. Tulloss (ret)
2008-09-19 16:36:35 CDT (-0400)

I would like to suggest the possibility that the species of observation 11278 is either Amanita hongoi Bas or A. virgineoides Bas of sect. Lepidella. The warts of the former are brownish (painted as beige or pinkish in one watercolor that I have seen) and those of the latter are white (as we saw in an earlier observation posted by forestwander). On this specimen the warts seem predominantly whitish with the ground color showing bruising to shades of reddish, yellowish, or brownish. The reddish orange splits in the bulb are suggestive of A. perpasta which Bas felt was somewhat closely related to hongoi. In the present case, drawings, watercolors, photographs exist of all the species mentioned in this paragraph.

In the present case, dried specimen(s) would be very helpful.

If the spores are inamyloid, I’d check out A. concentrica Oda et al. In sect. Amanita. However, I would think that the warts on the base of this latter species would be in more robust rings suggesting its muscarioid relationships.


definitely NOT Lepiota castanea…
By: Debbie Viess (amanitarita)
2008-09-19 11:30:06 CDT (-0400)

which is, for one thing, a small and delicate mushroom. it does have features reminescent of lepiota, but Else, our penultimate lepiota authority, sez no.let’s see what Rod Tulloss has to say…

Lepiota castanea?
By: forestwander
2008-09-18 22:33:51 CDT (-0400)

Here’s a link to a picture that is the closest thing I can find to what I saw. It was covered with a caramel-like candy coating. It reminded me of a glazed muffin. Thick glaze. Anyway, here’s the link:http://zakki.jp/ajiwai_kinoko/kuriirokarakasatake.htm

else disagrees with me…
By: Debbie Viess (amanitarita)
2008-09-18 16:27:09 CDT (-0400)

…so we’re back to a maybe lepidella for now. hopefully Rod will jump in…

By: Paul Derbyshire (Twizzler)
2008-09-18 12:45:47 CDT (-0400)

Might be one of those darn lepidellas.