Adiantum denticulatum Burm. f., Fl. Ind.: 236. 1768.

≡ Davallia denticulata (Burm. f.) Mett. ex Kuhn, Filic. Afr.: 27. 1868.

Lectotypus (designated by MAZUMDAR & CALLMANDER, 2018: 218): INDONESIA. Java: s.d., Pryon s.n. (G-PREL [G00800170]!) . Syntypus: INDONESIA. Java: s.d., Pryon s.n. (G [G00800169]!).

Notes. – MERRILL (1921: 333) was the first to mention “a Javan specimen collected by Pryon ” as “actual type”. But as two Pryon gatherings are present in G-PREL, representing syntypes, this cannot be accepted as implicit lectotypification or even as first-step lectotypification (TURLAND et al., 2018: Art. 9.17).

MAZUMDAR & CALLMANDER (2018) attempted a secondstep lectotypification, taking MERRILL (1921) ’s type citation as first-step lectotypification. This nomenclatural act is correctable as actual lectotypification and acceptable.