Braunia

Luna, Efraín De, 2022, Lectotypification, taxonomy and distribution of Braunia plicata (Bryopsida, Hedwigiaceae) in South America and Mexico, Phytotaxa 532 (1), pp. 101-106 : 106

Key to the South American species of Braunia with hyaline acumens

1. Leaf margin at apex dentate or serrulate; leaf apex short, cuspidate; leaf margin revolute up to the base of the acumen ...............2.

- Leaf margin at apex entire, or crenulate; leaf apex long, cuspidate to acuminate, sometimes ending in a flexuous point; leaf margin plane, reflexed in lower half of leaf, or revolute ...............................................................................................................................3.

2. Leaf cells at apex long, narrow, 4–6 times longer than wide; perichaetial leaves 2.0– 2.5 mm, about twice the size of vegetative leaves .......................................................................................................................................................................... Braunia plicata

- Leaf cells at apex elliptical, 2–4 times longer than wide; perichaetial leaves 3.0–5.0 mm, more than 3 times the size of vegetative leaves ..................................................................................................................................................................... Braunia subincana

3. Leaf margin plane or reflexed in lower half of leaf............................................................................................... Braunia canescens

- Leaf margin revolute up to the acumen....................................................................................................................... Braunia incana