Observation 13105: Varicellaria rhodocarpa
When: 2008-03-19
Herbarium specimen reported

Notes: Crust lichen, on conifer twig.
THALLUS: intensely verrucose, surface of verrucae rough, whitish
MEDULLA: white
ALGAE: green
APOTHECIA: buried in verrucae
SPORES: 1 per ascus, 2 cells, thick walled, very finely roughened/textured, up to 180 µm long, walls to 12 µm (and apparently more)

Those spores are unmistakable.

Images

26777
Thallus at 10×.
26778
Apothecial section, in water, at 100×.
26779
Ascus and exciple in water, at 400×.
26780
Spore in water, at 400×.

Proposed Names

87% (1)
Eye3 Eyes3
Used references: Curtis Bjork
Based on microscopic features: Huge, thick-walled, 2-celled spores.

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Eye3 = Observer’s choice
Eyes3 = Current consensus

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Created: 2008-10-26 02:41:38 EDT (-0400)
Last modified: 2008-10-26 02:41:38 EDT (-0400)
Viewed: 61 times, last viewed: 2016-10-28 05:51:20 EDT (-0400)