https://www.angolaflora.com/speciesdata/utilities/utility-display-checklist.php?family_id=182
Flora of Angola: Checklist: Polypodiaceae]
A website containing information about the Flora of Angola
flora of angolachecklistpolypodiaceae
https://phytotaxa.mapress.com/pt/article/view/phytotaxa.659.3.1
Exploring the diversity of the Java fern genus Leptochilus (Polypodiaceae) in the Indo-Burma...
java fernexploringdiversitygenusleptochilus