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Lepraria lanata Tønsberg |
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Nomenclatural data
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Opuscula Philolichenum 4: 51 (2007); type: U.S.A. Tennessee, Sevier Co., Great Smoky Mountains National Park, 35° 39.11’ N, 83° 25.76’ W, 8. Sept. 2005, T. Tønsberg 36347 (BG—holotypus; ASU, DUKE, NMW, NY—isotypi).
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Morphology
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Thallus crustose, leprose, with characteristic woolly, arachnoid consoredia appearance; whitish or partially brownish to bluish grey; relatively thick; shape irregular, up to 1 dm or more in diam.; margin diffuse, lobes absent; cortex absent; medulla absent; squamules absent; soredia abundant, all soredia aggregated into consoredia, loosely packed; surrounded by lax network of branching and anastomosing but mostly not projecting hyphae, colourless or in external parts often brown; consoredia large, to 1 mm, round; isidia-like structures absent. Photobiont trebouxioid, to 10(−13) µm wide.
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Chemistry
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Protocetraric acid, angardianic/roccellic acid. Thallus K–, C–, KC–, PD+ orange.
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Remarks
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Several species produce protocetraric and/or fumarprotocetraric acids, see the discussion under L. caesioalba. L. lanata is unique by its characteristic consoredia.
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Ecology and distribution
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Substrate and ecology: mostly rock, sometimes soil or mosses; dry to rather wet overhangs and rock walls. Distribution: Eastern USA, montane.
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