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Mark, K./ Saag, L./ Leavitt, S.D./ Will-Wolf, S./ Nelsen, M.P./ Tõrra, T./ Saag, A./ Randlane, T./ Lumbsch, H.T. 2016: Erratum to: Evaluation of traditionally circumscribed species in the lichen-forming genus Usnea, section Usnea (Parmeliaceae, Ascomycota) using a six-locus dataset. - Organisms Diversity & Evolution : 10.1007/s13127-016-0273-7. [RLL List # 245 / Rec.# 38453]
Abstract: The MycoBank code of the newly described species Usnea parafloridana was missing. The MycoBank code for the species Usnea parafloridana should read: MB818694. Usnea parafloridana K. Mark, Will-Wolf & Randlane sp. nov.; MycoBank No. MB818694. Type: USA, Wisconsin, Vilas Co., Trout Lake Conifer Swamp State Natural Area; 46.0135° N, -89.6586° W; 27.08.2011, Susan Will-Wolf WW14807: isolates WW_018 (holotype, TU; Fig. 4a, c, e), WW_023 (isotype 1, WIS), WW_013 (isotype 2, F). Morphology: thallus shrubby, up to 3–6 cm long, often with relatively few branches; branching mainly isotomic-dichotomous, divergent; lateral branches not narrowed at point of attachment; basal part distinctly jet black, with few annular cracks; papillae verrucose, numerous on main branches and lesser or absent on lateral branches; fibrils few to numerous; soralia small and punctiform when young, enlarging, becoming close to each other but usually staying delimited when mature, more numerous on terminal branches; isidiomorphs numerous, spinulose, relatively short and thick, both on young and mature soralia; cortex thick (9–15%); medulla thin (10.5–13%), dense, not pigmented; central cord thick (60–73%) and white; apothecia not seen (Fig. 4; colour illustrations in online version). Secondary chemistry: usnic acid in cortex; norstictic acid as a major compound, salazinic acid as an accessory substance (present in most examined specimens) in medulla. Ecology: on branches of Abies balsamea, Larix laricina, Picea mariana, or Pinus strobus in cedar swamp, conifer bog and pine plantation with trees over one-hundred years old. Distribution: currently 15 specimens are known from four localities in Wisconsin, USA. Etymology: the species is morphologically somewhat similar to Usnea subfloridana (both taxa have similar shrubby thalli, black basal parts and delimited soralia with numerous isidiomorphs), which phylogenetically appears conspecific with U. florida. The same root ‘florida’ is used in the epithet of the new taxon to underline this morphological similarity while the prefix ‘para-‘ indicates phylogenetic distinctness of the species from U. florida and U. subfloridana.
URL: http://link.springer.com/article/10.1007/s13127-016-0311-5
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