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Observation: Octospora sp. (7315)

When: 2008-04-15
Collection location: Edgewood Blue, British Columbia, Canada [Click for map]
Who: Jason Hollinger (pellaea)
Herbarium specimen available

Species Lists:
Mushrooms of Edgewood Blue (46)

Notes: This was a tiny cup fungus, clustered on moss in deer trail, no burn recently in this area.
FRUITING BODY: 2-6 mm wide, smooth to faintly white-powdery outside, intensely danger-orange inside, drying dull reddish orange, somewhat concave to nearly flat in age, tapering gradually but no clear stalk, margin minutely ragged
FERTILE SURFACE: hymenium clear (but appearing orange from paraphyses)
  paraphyses: long, slender, bent at somewhat expanded, rounded tips, covered w/ little granules that are IKI+ blue, no branches found, about 3.7+/−0.8 µm wide (N=8);
  asci: long, cylindrical, IKI−, no thickened tip at any stage that I found, spores 8 in 1 row packed diagonally, (190)220+/−23(250) x (11)12+/−0.89(13) µm (N=8);
  spores: fusiform to elliptic, some larger drops and many smaller drops, no texture, IKI−, (24)26+/−0.84(27) x (8.7)9.6+/−0.53(10) µm, Q=(2.4)2.7+/−0.15(3.0) (N=17)

Tried valiantly to key out in Fungi of Switzerland but I just couldn’t find anything that matched across the board.

Proposed Names:   Propose New Name

Proposed Name User Community Vote
Pezizaceae sp.   Mycoholic    (1)  
Recognized by sight
Octospora sp.   darv    (2)   EyeEyes
Recognized by sight
Octospora leucoloma   pellaea    (1)  
Used references: Mushrooms of Idaho and Pacific Northwest: Discomycetes, E. Tylutki, 1979

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

Eye = Observer's choice Eyes = Current consensus

Comments:  Add Comment

Created: 2008-04-16 18:00:45
By: Jason Hollinger (pellaea)
Summary: _Octospora leucoloma_?

Just found Trevor’s copy of “Mushrooms of Idaho and Pacific Northwest: Discomycetes”, E. Tylutki, 1979. It keys out with a bit of work to Octospora leucoloma, but gives no description. There are two described in _Fungi of Switzerland, though. Spores and asci are possibly right, as is substrate.

Created: 2008-04-16 16:48:51
By: Douglas Smith (douglas)
Summary: Peziza?

I don’t think this is a Peziza, the tip of the ascis aren’t blue in the IKI, isn’t that the defining character in Peziza? Although I saw a few times where this bluing of the tips was pretty slight, and only the very tip, such that it didn’t really turn up until you color corrected the photo (to take out a yellow or red cast to the scope light).

Observation created: Wed Apr 16 12:17:48 -0700 2008
Last modified: Wed Apr 16 12:24:46 -0700 2008
Show Log

Images:

12693
Octospora sp. (12693)

12694
Octospora sp. (12694)

12695
Octospora sp. (12695)

12696
Octospora sp. (12696)

12697
Octospora sp. (12697)

12698
Octospora sp. (12698)

12699
Octospora sp. (12699)

12700
Octospora sp. (12700)