Observation 211841: Lecanora rubicunda Bagl.
When: 2015-08-01
Who: zaca
No herbarium specimen

Notes: Growing on bark.

Images

543763
543764
543941
Microscopy: Section;
543942
Microscopy: Section and the corresponding KOH reaction;
543943
Microscopy: The bleeding of the medulla (after some 2 min.);
543944
Microscopy: Asci and spores.

Proposed Names

58% (1)
Recognized by sight
-58% (1)
Recognized by sight
86% (1)
Eye3 Eyes3
Recognized by sight: See also observation 72706 , 93703 and observation 113419.
Used references: I. Ibáñez and A. R. Burgaz, Epiphytic species of the Lecanora subfusca group (Lecanoraceae) in Spain, Nova Hedwigia 67 (1-2) 45-58, 1998.
Based on microscopic features
Based on chemical features

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Eye3 = Observer’s choice
Eyes3 = Current consensus

Comments

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Microscopy added.
By: zaca
2015-08-03 21:00:41 CDT (-0400)

I’m not used to working with such twisted material. Therefore, images that could obtain under the scope are of poor quality. The reason for present them here is based on an unexpected chemical reaction. Some time after analyzing the reaction to KOH of a section (~ 2 min), I noticed that the medulla under the hypohymenium was bleeding, producing abundant red-crystals (see the attached photos).
For the spores the following dimensions were obtained:
(8.9) 9.7 – 12 (13.1) x (6.3) 6.9 – 8.8 (9.2) µm
Q = (1.1) 1.2 – 1.5 (1.6) ; N = 30
Me = 10.8 × 7.9 µm ; Qe = 1.4

Created: 2015-08-02 17:37:06 CDT (-0400)
Last modified: 2015-08-04 04:53:14 CDT (-0400)
Viewed: 39 times, last viewed: 2016-10-24 07:53:35 CDT (-0400)
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