Observation 69285: Pertusaria hymenea (Ach.) Schaerer
When: 2010-09-11
Who: zaca
No herbarium specimen

Notes: Ascus with 8 spores. Spores with the following dimensions:
(56.9) 62.2 – 85.8 (95.8) x (30.5) 31.5 – 38.7 (42.1) µm
Q = (1.5) 1.8 – 2.4 (2.6) ; N = 40
Me = 74.3 × 35.7 µm ; Qe = 2.1
Using A Preliminary World-wide Key to the Lichen Genus Pertusaria – Group 20, Pertusaria hymenea is the only with spores of the above dimensions.
See MO69283, and MO68624 for other similar specimens.

Proposed Names

58% (1)
Eye3 Eyes3
Based on microscopic features: See attached photos.

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Eye3 = Observer’s choice
Eyes3 = Current consensus

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Created: 2011-06-15 17:27:34 WAT (+0100)
Last modified: 2011-06-15 17:27:35 WAT (+0100)
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