A revision and one new species of Begonia L. (Begoniaceae, Cucurbitales) in Northeast India Author Camfield, Rebecca Author Hughes, Mark text European Journal of Taxonomy 2018 2018-01-19 396 1 116 journal article 22365 10.5852/ejt.2018.396 2b95a851-e1bf-4bdd-9cce-441ddc4135d2 3787049 Group 5 – Leaves ovate and symmetric to sub-symmetric ( Fig. 4A ) 1. Plant with an erect stem, peduncles arising from leaf axils .............................................................. 2 – Plant without an erect stem, peduncles arising from rhizome or tuber ............................................ 3 2. Leaves 2–7 cm long, tepals under 5 mm long, stamens 8–12 with a short connective, female flowers with 5–6 tepals, fruit wings oblong, straight edged .................................... B. wengeri C.E.C.Fisch. – Leaves 5–20 cm long, tepals 5–10 mm long, stamens ± 30 with a very long connective, female flowers with 4–5 tepals, fruit wings rounded oblong ....................................... B. brevicaulis A.DC. 3. Upper surface of leaves glabrous ...................................................................................................... 4 – Upper surface of leaves with sparse to dense hairs .......................................................................... 7 4. Stipules over 1 cm long, flowers with striped outer tepals,> 30 stamens, styles 2 ............................ ...................................................................................................... B. hatacoa Buch. -Ham. ex D.Don – Stipules under 1 cm , flowers without stripes, up to 20 stamens, styles 3 ......................................... 5 5. Leaves 3–10 cm long, tepals ca 5 mm long ....................................................... B. ovatifolia A.DC. – Leaves (5–) 10–20 cm long, tepals 5–20 mm long .......................................................................... 6 6. Leaves puberulous below, stipules 2 mm long, tepals with pale fine hairs, stamens 20, female flowers with 4–5 tepals, longest fruit wing 2.5–3 cm ......................................... B. adscendens C.B.Clarke – Leaves sparse pilose below, stipules 5–6 mm long, tepals with dark hairs, stamens 8–10, female flowers with 3–4 tepals, longest fruit wing 1–1.5 cm .......................................... B. labordei H.Lév. 7. Stipules> 5 mm long, fruit capsule glabrous ................................................................................... 8 – Stipules < 5 mm long, fruit capsule covered in hairs ....................................................................... 9 8. Leaves up to 25 cm long, tepals with dark hairs, stamens 8–10, styles 3, longest fruit wing curved ................................................................................................................... B. labordei H.Lév. – Leaves 3–15 cm long, tepals with pale fine hairs, stamens 15–40, styles 2, longest wing triangular ............................................................................................................... B. wattii C.B.Clarke 9. Leaves variegated, 3–16 cm long, petiole 5–12 cm , outer tepals serrate, pink, fruit with long fine white hairs, longest fruit wing triangular, 20–24 mm long ............................................ B. picta Sm. – Leaves uniform green, 5–30 cm long, petioles 2–8 cm , outer tepals entire, white, fruit with scattered simple hairs, longest fruit wing rounded, 8–16 mm long ................................. B. brevicaulis A.DC.