Observation 130040: Callistosporium Singer
When: 2013-03-06

Notes: Growing on an old log, probably hardwood.
Caps up to 3.2 cm across with some small radiating appressed fibrils.
Spore print white, not amyloid. Spores ~ 5.0-6.9 X 3.0-4.0 microns. Q(ave.) = 1.87
No gill cystidia found.
Did have an odor, perhaps sweetish.
Looks like a Clitocybe of some sort?
Edit 3-29-13. Found another group of these on 3-27-13 in the same area but on different log. They had the same distinctive odor and white spores.
Added three more photos of latest find.

Images

314878
314879
314880
Spores in H2O & Congo Red @ 1000X.
314935
318925
Found on 3-27-13.
318926
Found on 3-27-13.
318927
Found on 3-27-13.

Proposed Names

28% (1)
Recognized by sight
55% (1)
Eyes3
Recognized by sight

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Eye3 = Observer’s choice
Eyes3 = Current consensus

Comments

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Richard, well, I tend to reflexly stain white spores(after testing for an amyloid reaction)
By: Ron Pastorino (Ronpast)
2013-03-29 19:39:11 PDT (-0700)

so that I can see the spores well enough to get good measurements. My eyes are not what they used to be.
Besides, how many genera have white spores that turn color in KOH?
Callistosporium may be a good genus for these but except for two or three species of the 13 known, there is little detailed information/descriptions that I could find.

Ron…
By: Richard and Danielle Kneal (bloodworm)
2013-03-29 18:23:32 PDT (-0700)

why did you mount the spores in KOH and congo red?
mount them in only KOH and note any color change.

Created: 2013-03-09 16:18:16 PST (-0800)
Last modified: 2013-03-29 17:29:28 PDT (-0700)
Viewed: 82 times, last viewed: 2016-10-25 19:36:02 PDT (-0700)
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