Basionym Name:Usnea laxissima C.W. Dodge, B.A.N.Z. Antarct. Res. Exped. Rep., Ser. B 7: 198 (1948)
Homotypic synonyms:Neuropogon antarcticus var. laxissimus (C.W. Dodge) Js. Murray, [as 'laxissima'] Trans. & Proc. Roy. Soc. N.Z., Bot. 2: 71 (1963)