Observation 48167: Amanita subglobosa group
When: 2008-08-04
No herbarium specimen

Proposed Names

-55% (4)
Recognized by sight
52% (3)
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Recognized by sight

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By: Alok Mahendroo (alok)
2010-07-09 09:46:28 PDT (-0700)

Thanks Rod.. I am sorry that right now I could not help you more.. BUT.. since this photo was taken by me in 2008.. I am hopeful that with the present season approaching the same time of the year.. maybe I’ll find more of these.. and if I do.. I will definitely ask you about them and

weiliiiiiii (weiliiiiiii) I’ll let you see the new photographs of the base.. too :)

Possible A. subglobosa
By: R. E. Tulloss (ret)
2010-07-07 09:48:20 PDT (-0700)

I understand, Alok.

I wanted you to know (if you were not already aware), that the old papers that list European or North American names as species present in northern India, Pakistan, etc. have to be questioned now that knowledge of the mushrooms of the region is beginning to expand. Many of the European and North American names that have appeared in the past in the Indian literature are misidentifications. In several cases, I have reviewed material on which the old names were based. This was possible only with the support of Dr. T. N. Lakhanpal, his students, his students’ students, and his students’ students’ students.

Detailed modern studies by Dr. Zhu L. Yang (Kunming Inst. of Botany, Yunnan Province, China) are (as a generality) the most useful characterizations of the Amanitaceae in the Pinaceae-Fagaceae-Dipterocarpaceae-containing forests that run from the Kamchatka peninsula to the eastern end of the Himalayan and neighboring mountainous regions.

I really don’t know where the European species ranges end toward the southeast of Europe (some taxa, like A. muscaria) apparently extend all the way across Siberia from east to west).

I have become aware of one “European” taxon that appears to occur in the Himalayan region of Asia (i.e., A. umbrinolutea of which I have material from both Pakistan and India that is a very good match to European material that I have also reviewed).

Correspondents in Pakistan have sent me one species that seems to be a relatively close phenetic “relative” of A. verna. Nothing has been published on this latter probable taxon.

A new paper on amanitas of Pakistan is nearly finished at present.

As the number of taxa and probable new taxa of Amanita continues to expand throughout the world (we are probably closing in on 700 taxa at present), the ability to identify an amanita from a picture is more an more in question. I was able to respond to you because I have been lucky enough to obtain a small amount of specimens and a little knowledge about your geographic region. The major guides to amanita in your region are works published on collections made just to the north and east of your region by Dr. Yang, his students, and his colleagues. To read Yang’s thesis, it is necessary to know German; however, he has made brief English summaries of his data available on the Amanita Studies website. When the new Amanitaceae site becomes available, at very least, I will have put the full detail of Yang’s spore data on the new versions of the species pages.

Very best,


Good luck with your project.

Very best,


pics of the base?
By: Timoteo (Timoteo)
2010-07-07 03:29:40 PDT (-0700)

Do you happen to have any pics of the base of the stipe?

A. subglobosa
By: Alok Mahendroo (alok)
2010-07-07 01:01:07 PDT (-0700)

Thank you Rod for enlightening me and others about this… But unfortunately I have no access to any Microscope.. (though if I seriously continue doing this study, I might try to obtain one) and the nearest one available would be at least a thousand kilometres from this place…

Do you have access to a microscope?
By: R. E. Tulloss (ret)
2010-07-06 21:59:07 PDT (-0700)

Given your geographical location, I think A. pantherina is not a very likely diagnosis. I suggest that you try to obtain copies of the papers of Dr. Zhu L. Yang (Kunming Inst. of Botany, Academia Sinica, Yunnan Province, China) and his colleagues and students. Dr. Yang has described a number of the pantherina-like taxa that occur in eastern and southern Asia.

I have a little experience in examining collections of amanitas of sub-Himalayan India; and in 20 years, I have never examined a species from the region that matched the European A. pantherina.

In northern India, a species that might be taken to be A. pantherina is _A. subglobosa Zhu L. Yang. A brief description and some pictures can be found here:


This species can be easily told from A. pantherina if you have access to a microscope. If you can access a microscope with an oil immersion lens, make as thin a cross section of a gill as you can and search the bases of the basidia for clamps. Amanita pantherina has very few clamps at the bases of basidia. However, clamps are common at the bases of basidia in A. subglobosa. Do not waste time on poor sections. If material is poorly dried, you may not be able to rehydrate the cells at the bases of the basidia. If that seems to be the case, try another section from another part of a gill…perhaps, closer to the margin of the cap. Using a cell wall stain like Congo Red will be very helpful in seeing clamps…after all, clamps are small and transparent.

Very best,


Created: 2010-07-06 08:43:07 PDT (-0700)
Last modified: 2010-07-17 04:50:00 PDT (-0700)
Viewed: 109 times, last viewed: 2016-10-25 21:54:53 PDT (-0700)
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