Growing on the side of a hardwood log. Odor indistinct. Fruiting body pliable, drying to a very tough and dense consistency. All tissues appeared inamyloid but was only able to find 1 spore, which could have been a contaminant.

Species Lists


2017-12-15-18.25.15 ZS PMax.jpg
Cross section at 40×.
Cross section in Melzer’s at 40×. Blue areas appeared to all be trapped air bubbles.
Hyphae in the pileus at 400x in Melzer’s.
Tramal hyphae at 400x in Melzer’s.
Tramal hyphae at 400x in Melzer’s.
Cross section tube wall at 400x in NH4OH (2 drops), phloxine (1 drop) and congo red (1 drop)
Cross section of fruiting body at 100x in NH4OH (2 drops), phloxine (1 drop) and congo red (1 drop)

Proposed Names

29% (1)
Recognized by sight
57% (1)
Used references: Slava Spirin, pers. comm.
Gilbertson, R. L., & Ryvarden, L. (1986). North American polypores. Vol. I. Abortiporus-Lindtneria. North American polypores. Vol. I. Abortiporus-Lindtneria.
Zhou, L. W., Nakasone, K. K., Burdsall, H. H., Ginns, J., Vlasák, J., Miettinen, O., … & Cui, B. K. (2016). Polypore diversity in North America with an annotated checklist. Mycological progress, 15(7), 771-790.
Miettinen, O., Niemela, T., & Spirin, W. (2006). Northern Antrodiella species: the identity of A. semisupina, and type studies of related taxa. Mycotaxon, 96, 211-240.
Based on microscopic features: Appears to be dimitic

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= Observer’s choice
= Current consensus


Add Comment
By: Django Grootmyers (heelsplitter)
2018-01-29 12:05:18 PST (-0800)

Growth on hardwoods, cartilaginous/flexible basidiocarps drying to a very tough consistenc. All parts inamyloid. There are more but these were relevant to my particular collection.

What are the primary diagnostic features
By: Stephen Russell (Mycota)
2018-01-26 18:06:53 PST (-0800)

Of A. semisupina?

Seems like it could be
By: Django Grootmyers (heelsplitter)
2018-01-26 17:50:59 PST (-0800)
The following may be the same:
By: Stephen Russell (Mycota)
2018-01-26 17:33:13 PST (-0800)

I probably have lab images pending upload.

Created: 2017-12-15 15:30:25 PST (-0800)
Last modified: 2018-01-29 12:05:20 PST (-0800)
Viewed: 98 times, last viewed: 2019-05-25 05:52:06 PDT (-0700)
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