Tinospora, Miers

Turner, I. M., 2023, Revision of Tinospora (Menispermaceae - Chasmantheroideae - Burasaieae) in Singapore, European Journal of Taxonomy 900, pp. 180-193 : 181

Key to Tinospora species in Singapore

1. Old stems densely tuberculate ...................................................... T. crispa (L.) Hook.f. & Thomson

– Old stems with tubercles rare or absent............................................................................................. 2

2. Leaves with pit domatia in axils of main nerves below; flowers distinctly pedicellate ...................... .......................................................................................................... T. krispura I.M.Turner sp. nov.

– Leaves with glandular patches or not in axils of main nerves below, pit domatia absent; flowers subsessile................................................................................................................................................. 3

3. Leaves with glandular patches in the axils of main nerves below; endocarps with distinct ventral groove and scattered tubercles........................................................................... T. macrocarpa Diels

– Leaves not with glandular patches in axils of main nerves below; endocarps with indistinct ventral groove and densely verruculose...................................................... T. singapura I.M.Turner sp. nov.

Note

Tinospora krispura I.M.Turner sp. nov. is only known from male plants, T. singapura I.M.Turner sp. nov. only from female plants and female flowers of T. macrocarpa remain unknown.