An evaluation of the endemic bryophyte flora of Guadeloupe Author Gradstein, S. Robbert Muséum National d’Histoire Naturelle - Sorbonne Universités, Institut de Systématique, Évolution, Biodiversité (UMR 7205), BP 39, 57 rue Cuvier, 75005 Paris (France) robbert. gradstein @ mnhn. fr (corresponding author) gradstein@mnhn.fr Author Bernard, Elisabeth Lavocat Moreau, 97128 Goyave, Guadeloupe, F. W. I. Corresponding member of the Muséum National d’Histoire Naturelle, Institut de Systématique, Évolution, Biodiversité, 75005 Paris (France) lisalavocat @ hotmail. com lisalavocat@hotmail.com text Cryptogamie, Bryologie 2020 2020-10-14 20 15 205 214 http://dx.doi.org/10.11646/zootaxa.4878.3.2 journal article 10.5252/cryptogamie-bryologie2020v41a15 1776-0992 7822144 Frullania trigona L.Clark, Jovet-Ast & Frye ( Figs 1 , 4) The Bryologist 50: 52 (1947) . — Type : Guadeloupe , Traces Hugues, “sur branchettes”, P. & V. Allorge s.n. (iso-, PC[PC0102212, PC0102211 (slide)]!). Remarks Frullania trigona is a member of subg. Frullania sect. Microphyllae (R.M.Schust.) Gradst., Lima & Ilk. -Borg., a small group of about ten species including three in the Neotropics (Lima et al. 2020). Characteristic of this section are the small, dioicous plants, less than 1 mm wide, with caducous leaf lobes, ocelli in leaf lobes (and sometimes in underleaves), and small, distant underleaves.Within this group, F.trigona stands out by scattered ocelli in leaves but not in underleaves, margins of leaves and underleaves distantly crenulate by projecting trigones,underleaves scarcely wider than the stem, and female bracts and bracteoles with entire margins. The species is only known from the type .