Observation 203000: Opegrapha dolomitica (Arnold) Clauzade & Cl. Roux ex Torrente & Egea

When: 2015-04-11

Collection location: Sintra, Portugal [Click for map]

Who: zaca

No specimen available

Notes:
Growing on a wall of rock.

Images

517016
517017
517423
Microscopy: Sections;
517424
Microscopy: Asci and spores.

Proposed Names

29% (1)
Recognized by sight
58% (1)
Eyes3
Used references: British Flora
Based on microscopic features

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Eye3 = Observer’s choice
Eyes3 = Current consensus

Comments

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Using the key for the genus Opegrapha
By: zaca
2015-04-21 13:05:03 CDT (-0500)

in the British Flora it key out as O. dolomitica.
To refer that the lenght of the 3-septate spores is about 10% small than that given there, yielding:
(19.2) 20.3 – 22.5 (23) x (4.9) 5.2 – 6.1 (6.4) µm
Q = (3.4) 3.5 – 4.1 (4.4) ; N = 24
Me = 21.2 × 5.6 µm ; Qe = 3.8.

Created: 2015-04-18 18:14:29 CDT (-0500)
Last modified: 2015-04-21 13:06:47 CDT (-0500)
Viewed: 37 times, last viewed: 2018-01-08 05:25:53 CST (-0600)
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