Frullania ecuadorensis Steph., Sp. Hepat. 4: 526. 1911, syn. nov.

Holotypus: ECUADOR. Prov. Guayas: “San José”, s.d., Allioni s.n. [Bryo. Levier 6551] (G [G00067443]!) .

= Frullania kunzei (Lehm. & Lindenb.) Lehm. & Lindenb.

Notes. – Frullania kunzei is a widespread neotropical species that is distinguished by its very small size (0.5–1 mm wide), prostrate growth, ovate-orbicular leaves with a rounded apex and weakly auriculate dorsal base (sub)isodiametrical apical leaf cells without intermediate thickenings, lobules 1.3–1.7 × longer than wide, small and distant underleaves, heteroiocus sexuality, and broadly 3-keeled perianths with a subentire involucre (GRADSTEIN, in press). Frullania ecuadorensis is a dioicous phenotype of F. kunzei with lobules varying from upright and close to the stem to oblique and at some distance to the stem. The close similarity of F. ecuadorensis to F. kunzei (= F. neesii Lindenb.) was already noted by STOTLER (1969).