Observation 68773: Sarcosphaera coronaria (Jacq.) J. Schröt.
When: 2011-06-07
Herbarium specimen reported

Notes: At first glance the mushrooms seemed to be Sarcospahera coronaria with an unusually long stipe. There were three specimens but the stipe broke off of two when trying to move covering debris. The spores (from a spore print in water mount)were only 15-17 × 6-7 microns, smooth with typically two oil drops – one large and one small, but sometimes three drops. The asci were inamyloid (eliminating Sarcospaera) and the paraphases appeared to be clavate with no septae and a width of up to 5-7 microns. The stipe was solid and a bit furrowed, but not lacunose. No ribs extended up the cap as in acetabulum. I am stumped.

Images

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The smell was unpleasant, but the specimens seemed a bit old and starting to decay. No bruising reactions noted.

Proposed Names

28% (1)
Recognized by sight
31% (2)
Eyes3
Recognized by sight: It LOOKS like Sarcospahera, which sometimes has a stipe. The spore size fits, the guttules fit & the habit fits.
Nothing in Dennis or Seaver comes as close as Sarcosphaera.
Used references: Dennis, R. W. G. 1981. British Ascomycetes. J. Cramer, New York, NY. 585p.
Seaver, F. J. 1978 (Reprint of 1928 with revisions of 1942). The North American Cup-Fungi (Operculates). J. Cramer, New York, NY. 377p.

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Eye3 = Observer’s choice
Eyes3 = Current consensus

Comments

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Thanks, that was my first impulse, but I had doubts about S. coronaria
By: Michael Beug (beugm)
2011-06-12 12:26:14 JST (+0900)

Does anyone have experience with Melzer’s on the asci of S. coronaria? The literature says that the asci should stain blue and these did not and so I thought this might be something different, but could not come up with any alternative.

Created: 2011-06-08 14:22:59 JST (+0900)
Last modified: 2011-12-10 09:04:35 JST (+0900)
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