Observation 76938: Collema cristatum (L.) F.H. Wigg.
When: 2011-07-16
Who: zaca
No herbarium specimen

Notes: As far as I remember this was the first time I saw a specimen of this species with apothecia. It was found over calcareous rocks, very close to the place of the one in observation MO75156.
I think that the microscopy and particularly the form and the values obtained for the dimensions of spores allow me to confirm its identification as Collema cristatum.
Average values for the dimension of spores:
Me = 25.1 × 11.2 µm ; Qe = 2.3 (N=30).

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Recognized by sight

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Created: 2011-09-22 11:39:41 PDT (-0700)
Last modified: 2013-09-21 08:25:24 PDT (-0700)
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