Plagiochila barteri var. valida (Steph.) Vanden Berghen

in Bull. Jard. Bot. Natl. Belg. 51: 73. 1981. ( Plagiochilaceae)

Notes – Plagiochila barteri is reported from Madagascar, Comoros, Mauritius and La Réunion, but the var. valida was so far only reported from La Réunion (WIGGINTON, 2018). It is easily distinguishable from P.barteri Mitt.var. barteri, which has previously been recorded from Madagascar (MARLINE et al., 2012), by the dorsal margin almost free of teeth (or with a few ones, <6), and the bulging trigones between leaf cells (VANDEN BERGHEN, 1981).

Specimen examined. – MADAGASCAR. Reg. Vatovavy-Fitovinany [Prov. Fianarantsoa]: Ranomafana parc, Along the N side of main road at the head of the big waterfalls on the Namorona River, dripping granitic cliffs surrounded by montane rainforest, 21°14'42"S 47°23'50"E, 1080 –1150 m, 29.VII.2004, S. & T. Pócs 04126/AT (TAN, EGR).