Typification and nomenclature of the ferns described in N. L. Burman’s Flora Indica Author Mazumdar, Jaideep Department of Biological Sciences, Burdwan Town School, Burdwan 713101, India jaideepmazumdar10@gmail.com Author Callmander, Martin W. Conservatoire et Jardin botaniques de la Ville de Genève, C. P. 71, 1292 Chambésy, Genève, Switzerland Author Fumeaux, Nicolas Conservatoire et Jardin botaniques de la Ville de Genève, C. P. 71, 1292 Chambésy, Genève, Switzerland text Candollea 2019 2019-05-29 74 1 93 109 journal article 3454 10.15553/c2019v741a10 edb2e6d0-9ff6-46c9-beaa-0b323a0412a9 2235-3658 5684532 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). Fig. 1. – Plate 66 of Flora Indica ( Burman, 1768 ) representing Ophioglossum pedatum Burm. f. (fig. 1), Polypodium trapezoides Burm. f. (fig. 2), P. radicans Burm. f. (fig. 3) and Adiantum truncatum Burm. f. (fig. 4). [© Conservatoire et Jardin botaniques de la Ville de Genève] 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.