Hayashi T, Suleiman M, Okada H, Tsukaya H.

A new variety of fern from Borneo, Sphaerostephanos unitus var. dimorphophylla (Thelypteridaceae)

. Phytotaxa [Internet]. 2018 Apr. 6 [cited 2025 Dec. 9];346(3):287–292. Available from: https://phytotaxa.mapress.com/pt/article/view/phytotaxa.346.3.8