Observation 178895: Vainionora americana Kalb, Tønsberg & Elix
When: 2013-09-19

Notes: on young Fagus grandifolia trunk 1m off ground

oak-hickory forest on lower part of south-facing slope

thin white continuous smooth thallus, prothallus lacking, thallus and apothecia all K+y C- KC~y (or just not clearing) UV- 350-375nm P~ faint yellow, fine concolorous soredia arising in superficial round discrete soralia coalescing in center into areolate sorediate crust, apothecia adnate with smooth even thalline shiny rims, disk pale to red-brown epruinose, epihymenium brown filled with very fine POL+ granules inspersing liberally into upper hymenium, amphithecium filled with fine POL+ granules clearing in K and a few large POL+ crystals insoluble in K with indistinct cortex, paraphyses apparently unbranched at least in upper parts separating easily in K but not water scarcely expanded at tips, spores 8 per ascus thick-walled broadly ellipsoid hyaline simple ~10-11×7-8um walls ~1um somewhat yellowish in K

Images

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at 15x, stacked
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at 20x, stacked
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at 30x, stacked

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Created: 2014-09-16 02:51:45 EDT (-0400)
Last modified: 2014-09-16 02:51:55 EDT (-0400)
Viewed: 10 times, last viewed: 2016-10-29 01:48:50 EDT (-0400)
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