New combinations in Neotropical Lycopodiaceae Author Øllgaard, Benjamin text Phytotaxa 2012 2012-06-13 57 1 10 22 http://biotaxa.org/Phytotaxa/article/view/phytotaxa.57.1.3 journal article 10.11646/phytotaxa.57.1.3 1179-3163 5061289 Phlegmariurus tetragonus (Hook. & Grev.) B.Øllg. , comb. nov . Basionym: Lycopodium tetragonum Hooker & Greville (1827 [1829]: 109). Synonym: Huperzia tetragona (Hook. & Grev.) Trevisan (1874: 248) .