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 : 9

publication ID

https://doi.org/ 10.5852/ejt.2018.396

DOI

https://doi.org/10.5281/zenodo.3794323

persistent identifier

https://treatment.plazi.org/id/0397A96F-2F65-FFDF-02E2-FD77E57D29C8

treatment provided by

Valdenar

scientific name

Begonia
status

 

Group 5 View in CoL – Leaves ovate and symmetric to sub-symmetric ( Fig. 4A View Fig )

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. View in CoL

– 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 View in CoL 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. View in CoL -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 View in CoL 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 View in CoL

– 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. View in CoL

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. View in CoL

– Leaves 3–15 cm long, tepals with pale fine hairs, stamens 15–40, styles 2, longest wing triangular ............................................................................................................... B. wattii C.B.Clarke View in CoL

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. View in CoL

– 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 View in CoL A.DC.

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