Collection location: Monterey Co., California, USA [Click for map]
On bark of a large old red willow (Salix laevigata).
Thallus scant, greenish, verrucose. Apothecia lecanorine, with a narrow pruinose rim becoming reduced but persistent. Disks dark maroon-brown, lightly pruinose, rough, plane to somewhat convex. Hymenium and hypothecium hyaline, epihymenium brown, with surface granules, all POL-, K+ purplish. Paraphyses conglutinated, with a pigmented swollen apical cell.
Asci clavate, 8-spored. Spores hyaline, narrowly ellipsoid, fusiform, (1)-3 septate, slightly constricted at septa, generally curved (bean shaped). Average 14.6×4.7µm (n=7).
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Created: 2017-06-29 05:38:24 CEST (+0200)
Last modified: 2017-06-29 05:38:36 CEST (+0200)
Viewed: 24 times, last viewed: 2019-08-20 12:04:07 CEST (+0200)