When: 2011-10-29

Collection location: Tillamook Co., Oregon, USA [Click for map]

Who: Danny Newman (myxomop)

Specimen available

Species Lists


1000x Melzer’s – trama
1000x Melzer’s – trama
1000x Melzer’s – trama
1000x Melzer’s – trama
a freeloader, mummified to a pore mouth

Proposed Names

-31% (2)
Based on chemical features: Intense smell of chloraseptic
11% (4)
Recognized by sight
-31% (2)
Based on chemical features: odor listed as strong, “non-mushroomy,” or conky in various texts. fits the general macromorphological description, though no pure white was observed on this or any similar specimens of any age.
29% (1)
Recognized by sight

Please login to propose your own names and vote on existing names.

= Observer’s choice
= Current consensus


Add Comment
By: Danny Newman (myxomop)
2013-09-23 03:38:51 CDT (-0400)

Short characteristic
A medium sized polypore with annual, soft fruitbodies with a striking odour.

Basidiocarps annual, pileate, margin sometimes lobed, medium sized, normally no longer than 15 cm along the wood and 8 cm across, sappy when fresh with a pleasant odour of Ledum palustre, hard when dry. Upper surface at the beginning cream coloured later more or less spotted with rusty brown areas, hairy. Pore surface at first dirty white, later brownish especially when bruised, pores very small, 2-3 pro mm.

Distribution and status
Widespread in the taiga-region from Scandinavia and East-Europe to Siberia, Russian Far East (Kamchatka) and the United States, but rare and localised.

Saprotrophic on old dead logs and trunks of spruce (Picea) in virgin coniferous forests.


Amylocystis lapponica is a medium-sized bracket fungus. The fruiting body is hairy and cream coloured, developing rusty brown spots as it ages (2). The fleshy fruiting body gives off a pleasant, and distinctive, odour (2).


I have collected A. biennis once
By: Danny Newman (myxomop)
2012-11-02 13:33:56 CDT (-0400)

at least A biennis according to Darv:


That and this specimen were completely, completely different fungi. Observation 73514 was significantly tougher; coriaceous, leathery. The one seen here was spongy, albeit somewhat contorted and therefore uncharacteristically firm at its center from so much compacted tissue. The Colorado, Sierra Nevada and Humboldt equivalents of this observation share that same softness, consistent with members of Tyromyces/Oligoporus/Postia. There is the discrepancy of substrate as well (terrestrial among hardwoods vs. directly on downed conifers), the absence of watery exudate, and the apparent tendency for A. biennis to form compound, imbricate FBs versus this one’s typically lateral habit (this particular example being something of an exception). Point being: I do not believe this to be A. biennis based on what little I know first-hand of A. biennis.

The specimen pictured here is no more, but I can recognize this perplexer from across a room. The aforementioned smell is the clincher. If I ever come across it again, it will make its way here and material will be saved.

look in the center of that cluster, Irene…
By: Debbie Viess (amanitarita)
2012-11-02 11:02:28 CDT (-0400)

I see hairy brown caps on a way overgrown hymenium.

What say you, Danny? You had it in hand.

Not hairy
By: Irene Andersson (irenea)
2012-11-02 05:02:46 CDT (-0400)

pores all around – I’d say a typical cluster of Abortiporus biennis

this is a pretty weird fruit body…
By: Debbie Viess (amanitarita)
2012-11-01 18:54:54 CDT (-0400)

but I can just see a cap surface that looks quite dark brown and dare i say, hairy?

the pores are also a good match.

now I understand why you were so keen to hear about an odor. ;)

if you saved it, I’ll save part of mine, too (it is starting to get a bit moldy), and we can compare at some point.

i couldn’t see clamps
By: Danny Newman (myxomop)
2011-11-15 01:55:10 CST (-0500)

but only in the sense that I’m familiar with. there were bulges in these hyphae, no doubt, but I couldn’t locate anything I recognized as a traditional clamp, as in a bulge accompanied by a septum.

for the moment, this is the key character that my ID decision is hinged upon, as per the PNWKC key’s nifty table on A. lapponica, L. mollis and O. fragilis:

Though if clamps are truly absent, I’ve got another problem on my hands; namely that these Tyromycetous (?) things I’ve been finding don’t generally look a whole lot like L. mollis. O. fragilis is still the front runner given the smell descriptions.

“Odour faint”
By: Danny Newman (myxomop)
2011-11-11 15:59:57 CDT (-0400)

Polyporus biennis (Bull. ex Fries) Fries

Culture description teleomorph (Bakshi, B.K.; Sehgal, H.S.; Singh, B. 1969, Indian For. Rec. 2(9): 215)


By: Danny Newman (myxomop)
2011-11-11 15:48:58 CDT (-0400)

being too hands-on familiar with either taxon (T. lapponicus or A. biennis), I can only draw attention to the many discrepancies between this observation of A. biennis (also IDed by Darv):

observation 73514

and the two to have recently received A. biennis as a name proposal:

this one and observation 75122

73514 was unquestionably an altogether different fungus. No similarity in smell, either in quality or intensity. 73514 was also much more persistent and tough, not rubbery-gelatinous as 81832 and 75122 were; the difference between a soft conk (think Phaeolus) and a squishy Rhizopogon. In addition, not one of the three of these that I’ve seen/collected personally — 81832, 75122 and the unobserved (but identical) specimen from the Sierra — possessed anywhere near as light of tones as observation 73514, nor did they exude orange droplets. With regard to substrate preference, A. biennis is only rarely recorded from conifers. This and it’s Colorado and Sierra cousins were all collected on (or in the immediate vicinity of) downed conifers.

If someone can find info on smell for A. biennis, T. lapponicus or both, that should go a long way to ruling in or out the possibilities. I’ll keep looking. Microscopy will follow soon as well, though I only took back two small pieces of hymenophoral tissue. If they’re as bereft of stand-out micro features as the Colorado specimens (namely cystidia and spores), I suppose I’ll start brushing up on my hyphae/trama terminology.

By: damon brunette (damonbrunette)
2011-11-10 23:10:05 CDT (-0400)

with darv on this one. underside looks typical.

By: Danny Newman (myxomop)
2011-11-10 02:48:52 CDT (-0400)

not likely A. biennis, though the more I read about its description, the two do share some similarities. See observation 75122 for a slightly less chaotic looking example of the same species from Colorado. One key difference I notice right off the bat is A. biennis is described as having a pronounced difference in texture between the fertile and non-fertile tissues. This thing is equally gelatinous throughout.

Created: 2011-11-09 22:07:18 CDT (-0400)
Last modified: 2013-09-30 21:03:36 CDT (-0400)
Viewed: 228 times, last viewed: 2020-07-06 11:37:28 CDT (-0400)
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