Begonia

Camfield, Rebecca & Hughes, Mark, 2018, A revision and one new species of Begonia L. (Begoniaceae, Cucurbitales) in Northeast India, European Journal of Taxonomy 396, pp. 1-116 : 10

Group 7 – Leaves lanceolate (deltoid), symmetric ( Fig. 4C )

1. Plant with an erect stem, inflorescences arising from leaf axils or terminal ...................................... ................................................................................................................ B. lushaiensis C.E.C.Fisch.

– Plant stemless, inflorescences arising from rhizome ........................................................................ 2

2. Plant hairy, tepals serrate, female flowers with 4–5 tepals, stamens 30 ........................ B. picta Sm. – Plant glabrous to slightly hairy, female flowers with 2–3 tepals, stamens <20 .............................. 3

3. Leaves 3–13 × 2–7 cm, stamens 15–20, dioecious, tepals glabrous, fruit with 3 equal rounded wings, tepals persistent ................................................................... B. dioica Buch. -Ham. ex D.Don

– Leaves 9–20 × 6–16 cm, stamens 8–10, monoecious, tepals hairy, fruit with 1 long triangular wing and 2 short wings, tepals deciduous ..................................................................... B. labordei H.Lév.

Figures

Fig. 4. Leaf tracings. A. Group 5: ovate and symmetric to slightly asymmetric leaves. B. Group 6: ovate, asymmetric and shallow dentate to denticulate leaves. C. Group 7: lanceolate (deltoid) and symmetric leaves.