Frullania trigona L.Clark, Jovet-Ast & Frye

Gradstein, S. Robbert & Bernard, Elisabeth Lavocat, 2020, An evaluation of the endemic bryophyte flora of Guadeloupe, Cryptogamie, Bryologie 20 (15), pp. 205-214 : 206

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.

Figures

FIG. 1. — Isotypes of Frullania trigona L.Clark, Jovet-Ast & Frye (PC).