Observation 10319: Rinodina grandilocularis Sheard
When: 2008-06-24
Herbarium specimen reported

Notes: crustose lichen, on juniper wood
THALLUS: brown, lumpy to almost lobulate
APOTHECIA: lecanorine, adnate; disc black, plane, epruinose; rim like thallus; epihymenium brown; hymenium clear; hypothecium clear; exciple clear; cortex clear and even; paraphyses brown-capped and swollen; all parts K-
SPORES: 8 per ascus, 2 cells, clear aging gray then brown, septum appearing early, Physconia-type (having angular lumina with thickened tips at first but becoming thin walled throughout almost as soon as they turn brown), strongly constricted at maturity even becoming almost separated when over-mature, 16+/-0.5 × 9.5/-0.7 µm (Q=1.7/-0.08) (N=5)

Endemic to North America, with distribution centered on Colorado Plateau.

Images

19327
30x magnification
19328
Apothecial section, in water, at 100×.
19329
Fully mature spore, in water, at 1000×.
19330
Mostly-mature spore, in water, at 1000×.
19331
Immature spore, in water, at 1000×.

Proposed Names

58% (1)
Eye3 Eyes3
Used references: Nash’s Sonoran Flora

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Eye3 = Observer’s choice
Eyes3 = Current consensus

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Created: 2008-09-01 22:12:37 BST (+0100)
Last modified: 2008-09-01 22:12:37 BST (+0100)
Viewed: 10 times, last viewed: 2016-10-23 18:40:28 BST (+0100)