Amauropelta subg. Parathelypteris (H. Ito) S.E. Fawc. & A.R. Sm.

Fawcett, Susan & Smith, Alan R., 2021, A Generic Classification of the Thelypteridaceae, Fort Worth, Texas, USA: BRIT Press : 27-28

Amauropelta subg. Parathelypteris (H. Ito) S.E. Fawc. & A.R. Sm. , comb. nov.

— Thelypteris sect. Parathelypteris H. Ito in Nakai & Honda, Nov.Fl. Jap. 4:127.1939.— Parathelypteris (H.Ito) Ching — Thelypteris subg. Parathelypteris (H.Ito) R.M.Tryon & A.F.Tryon — TYPE: Amauropelta glanduligera (Kunze) Y.H. Chang [= Aspidium glanduligerum Kunze, Analecta Pteridogr. 44. 1837]— Thelypteris glanduligera (Kunze) Ching — Amauropelta glanduligera (Kunze) Y.H. Chang

Etymology. —Gr. para, beside + Thelypteris . A genus similar to, but distinct from, Thelypteris .

Diagnosis. —Plants of temperate, or subtropical montane East Asia, winter-deciduous with thin, branching long-creeping rhizomes, x = 27, 31. In addition to biogeographical distribution, the members of this genus can usually be distinguished from the other subgenera of Amauropelta by proximal pinnae typically abruptly- or little reduced.

Biogeography and ecology. —This clade includes about six species, of continental East Asia, Taiwan, Japan, and south to the Philippines. Recent studies have demonstrated remarkable cytological complexity among its species ( Nakato et al. 2002), with diploids, triploids, tetraploids, hypotetraploids, hexaploids, and hyperhexaploids known from the A. angustifrons complex.

Constituent species.—* Amauropelta angustifrons (Miq.) Y.H. Chang ; * A. cystopteroides (D.C. Eaton) S.E. Fawc. & A.R. Sm. ; * A.glanduligera (Kunze) Y.H. Chang ; A.grammitoides (Christ) S.E. Fawc.& A.R. Sm. ; ** A. miyagii (H. Ito) S.E. Fawc. & A.R. Sm. ; * A. serrulata (Ching) S.E. Fawc. & A.R. Sm.