Observation 33176: Cinereomyces lindbladii (Berk.) Jülich
When: 2010-01-30
Herbarium specimen reported

Notes: The specimen is a small, soft, resupinate polypore causing a white rot on pine. The size of pores (3-4/mm), the allantoid spores, the white rot, and the weirdly-shaped hymenial elements (cystidioles or basidioles?) all fit nicely. But the strangest character is that the skeletal hyphae dissolve in KOH. On my first examination of the specimen I missed the presence of skeletal hyphae completely because I had mounted the material in KOH and phloxine. After mounting in meltzers I saw them, and then went back to look for them in water and confirmed that I could dissolve them away with KOH.

[admin – Sat Aug 14 02:02:23 +0000 2010]: Changed location name from ‘Limantour Road, Pt Reyes National Seashore, CA’ to ‘Limantour Rd., Point Reyes National Seashore, Marin Co., California, USA

Species Lists

Images

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76993
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These are the skeletal hyphae in water, the next image shows the material from exactly the same area of the specimen mounted in KOH
76996
This in a KOH mount showing only generative hyphae (the skeletals dissolved) and hymenial elements. Note the weird shapes of some of the latter. The dissolving of the skeletal happens almost immediately.

Proposed Names

75% (2)
Used references: Gilbertson & Ryvarden North American Polypores
Based on microscopic features: allantoid spores of the right size, and skeletal hyphae that dissolve in KOH
83% (1)
Eye3 Eyes3
Used references: Miettinen & Larsson Mycol. Prog. (2011) 10:131–141
Based on microscopic features: allantoid spores of the right size, and skeletal hyphae that dissolve in KOH

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

Eye3 = Observer’s choice
Eyes3 = Current consensus

Comments

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Excellent
By: Darvin DeShazer (darv)
2010-02-05 16:44:10 PST (-0800)

What a great post! This is a very strange fungus with dissolving hyphae.

Created: 2010-02-05 09:37:40 PST (-0800)
Last modified: 2011-04-22 15:35:42 PDT (-0700)
Viewed: 186 times, last viewed: 2016-11-08 15:33:50 PST (-0800)
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