This resupinate came from the inside bark of a dead, burned bishop pine near the Bayview trailhead. I thought I had a spore print for it, but it turned out to be a mixed collection with a second resupinate. After some searching I found a short spore, ellipsoid spore (5.4 X 3.1) that was associated with the material and is the right size (almost) for the species. The pointy "lycocysidia’ are the main feature that suggests the species, but as with all these crusts I’m still in the learning phase and not very sure of my species calls. The presence of Lyocystidia, however, makes me pretty sure of the genus.

[admin – Sat Aug 14 01:58:17 +0000 2010]: Changed location name from ‘Bay View Trialhead, Pt. Reyes National Seashore, Marin Co, CA’ to ‘Bay View Trialhead, Point Reyes National Seashore, Marin Co., California, USA’

Species Lists


This shows the apex of an immature lyocystidium
This is the fruitbody in all its glory when it was fresh and sporulating
the two-branches to the “root” of one of the lyocystidia is shown in the upper right
these of the tips of the sharply pointed lyocystidia
Nothing special here – the other two sterigmata are not visible in this plane, but were present, as was a basal clamp.
This is a closeup of the fruitingbody after it was dried showing a very loose array of hyphae. The fuzzy look to them (aside from the poor focus) is caused by the many projecting cystidia

Proposed Names

55% (1)
Used references: Corticiaceae of Northern Europe Vol 8
Based on microscopic features: presence of sharply pointed Lyocystidia, spores of about the right size,

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Add Comment
reading about lyocistidia
By: Danny Newman (myxomop)
2016-08-12 11:37:45 -05 (-0500)

they dissolve completely in KOH! makes you wonder how many crusts and poroids have them but are described without them due to descriptions from dried material revived with KOH.

Created: 2010-02-27 17:33:53 -05 (-0500)
Last modified: 2010-08-13 20:58:17 -05 (-0500)
Viewed: 263 times, last viewed: 2019-02-02 04:04:33 -05 (-0500)
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