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This species is accepted, and its native range is Malawi (Mt. Mulanje).
A specimen from Kew's Herbarium

[FZ]

Begoniaceae, F. K. Kupicha. Flora Zambesiaca 4. 1978

Morphology General Habit
Plants perennial, c. 30 cm. tall.
Morphology Stem
Stems glabrous, reddish, unbranched, arising from a large tuber.
Morphology Leaves
Leaves glabrous, the lower ones petiolate, upper ones ± sessile; laminae 9–14 cm. long, ovate-acute to-cuspidate, fleshy, the margin obscurely and irregularly serrate; petioles 0–4 cm. long; stipules 6–20 × 3–10 mm., oblong-acute, entire-margined, deciduous.
Morphology Reproductive morphology Flowers
Flowers scented, in terminal and axillary dichasial cymes with 2–3 dichasia; peduncles 2–11 cm. long; primary dichasial branches 0·5–4 cm. long. Male flowers: tepals 2 + 2, white or palest pink; outer pair 25–34 × 14–22 mm., linear-oblong, inner pair 20–31 × 15–21 mm., broadly oblong; filaments 1·5–3 mm. long. Female flowers: tepals 5, coloured as in the male; outer two 30–32 × 17–19 mm., subelliptic, inner two 28–30 × 18–23 mm., broadly obovate, innermost one 23–27 × 18–20 mm.; styles divided to c. 1/2 their length, the branches spirally twisted; ovary 13 × 6–7 mm., linear-oblong, with 3 narrow wings up to 2 mm. wide; placentae bifid.
Morphology Reproductive morphology Inflorescences Bracts
Bracts 15–24 × 11–15 mm., ovate, membranous, conspicuous.
sex Male
Male flowers: tepals 2 + 2, white or palest pink; outer pair 25–34 × 14–22 mm., linear-oblong, inner pair 20–31 × 15–21 mm., broadly oblong; filaments 1·5–3 mm. long.
sex Female
Female flowers: tepals 5, coloured as in the male; outer two 30–32 × 17–19 mm., subelliptic, inner two 28–30 × 18–23 mm., broadly obovate, innermost one 23–27 × 18–20 mm.; styles divided to c. 1/2 their length, the branches spirally twisted; ovary 13 × 6–7 mm., linear-oblong, with 3 narrow wings up to 2 mm. wide; placentae bifid.
Morphology Reproductive morphology Fruits
Capsule 16–26 × 12–15 mm., ellipsoid, the wings subequal, up to 5 mm. wide, narrowly triangular, almost parallel-sided and thus making the fruit ± oblong in outline.

Native to:

Malawi

Begonia nyassensis Irmsch. appears in other Kew resources:

Date Reference Identified As Barcode Type Status
Jan 1, 1999 Gassner, A. [194], Malawi K000049566
Feb 15, 1968 Hilliard, O.M. [4609], Malawi K000049565
Feb 15, 1968 Hilliard, O.M. [4609], Malawi K000049564
Jan 1, 1960 Chapman, J.D. [538], Malawi K000049563
Jan 1, 1960 Jackson, G. [2195], Malawi K000049567 holotype
Jan 1, 1960 Chapman, J.D. [538], Malawi K000049562

First published in Bot. Jahrb. Syst. 81: 155 (1961)

Accepted by

  • Govaerts, R. (1996). World Checklist of Seed Plants 2(1, 2): 1-492. MIM, Deurne.

Flora Zambesiaca
Flora Zambesiaca
http://creativecommons.org/licenses/by-nc-sa/3.0

Herbarium Catalogue Specimens
Digital Image © Board of Trustees, RBG Kew http://creativecommons.org/licenses/by/3.0/

Kew Backbone Distributions
The International Plant Names Index and World Checklist of Selected Plant Families 2021. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
© Copyright 2017 World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0

Kew Names and Taxonomic Backbone
The International Plant Names Index and World Checklist of Selected Plant Families 2021. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
© Copyright 2017 International Plant Names Index and World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0