Family:
Cannabaceae Martinov
Genus:
Chaetachme Planch.

Chaetachme aristata Planch.

This species is accepted, and its native range is Tropical & S. Africa, Madagascar.

[FZ]

Ulmaceae, C. M. Wilmot-Dear. Flora Zambesiaca 9:6. 1991

Morphology General Habit
Shrub tending to scramble, or small spreading much-branched tree, 1–13 m. tall; branches ± drooping, zigzag; bark smooth, grey, later fibrous and longitudinally striate; twigs shortly erect-pubescent to glabrous, often short and becoming spinose at apex; axillary spines (single) paired, 4–30 mm. long.
Morphology Leaves
Leaves (2)3–9(11) x (1)1.5–4.5(5) cm., elliptic to elliptic-ovate; apex acute to shortly acuminate and aristate with a bristle up to 7 mm. long; base broadly cuneate to rounded (to slightly cordate), ± asymmetrical; margin entire or serrate with few irregularly-spaced (or many regular, especially in juvenile plants) mucronate teeth; lamina coriaceous (juvenile foliage sometimes mernbranous-chartaceous), glabrous and very glossy dark green above, paler and often scabrid or sparsely fine-pubescent below, especially on midrib; midrib prominent beneath, ± grooved above, lateral veins c. 10, looping near margin, indistinct; petiole 3–6 mm. long; stipules (5)10–20 mm. long, narrowly oblong-lanceolate, caducous.
Morphology Reproductive morphology Inflorescences
Inflorescences 5–15 mm. long, flowers greenish-cream, subtended by small ovate ± amplexicaul bracts, c. 1 x 1 mm., pedicels 1–3 mm. long, sepals finely pubescent.
sex Male
Male flowers (few) 10–30 (or more), sepals 2–3.5 x 1.5–2 mm.
Morphology Reproductive morphology Flowers
Female flowers with sepals 1–2 x 1–1.5 mm.; ovary sparsely fine-pubescent, 3–5 mm. long; styles 7–20(30) mm. long, persistent but easily dislodged when dry. Male flowers (few) 10–30 (or more), sepals 2–3.5 x 1.5–2 mm.
sex Female
Female flowers with sepals 1–2 x 1–1.5 mm.; ovary sparsely fine-pubescent, 3–5 mm. long; styles 7–20(30) mm. long, persistent but easily dislodged when dry.
Morphology Reproductive morphology Fruits
Fruit green, ripening yellowish-orange, ovoid or depressed-globose, 10–15 x 10–14 mm. (dried), up to 35 x 20 mm. (fresh), glabrous.

Native to:

Angola, Benin, Botswana, Cameroon, Cape Provinces, Central African Repu, Congo, Ghana, Gulf of Guinea Is., Ivory Coast, Kenya, KwaZulu-Natal, Madagascar, Malawi, Mozambique, Nigeria, Northern Provinces, Rwanda, Somalia, Sudan, Swaziland, Tanzania, Togo, Uganda, Zambia, Zaïre, Zimbabwe

Chaetachme aristata Planch. appears in other Kew resources:

Date Reference Identified As Barcode Type Status Has image?
Aug 1, 1962 K000243080 Yes
Apr 9, 1946 Schweinfurth, G. [2828], Sudan K000243078 isolectotype Yes
Dawkins, H.C. [430], Uganda 11030.000 No
Dawkins, H.C. [431], Uganda 11033.000 No
Milne-Redhead, E. [5121A], Ghana 2650.000 No
Verdcourt, B. [1580], Kenya 29458.000 No
K000243083 Yes
Drege [s.n.] K000243081 Yes
Drege [s.n.], South Africa K000243082 Yes
Madagascar Chaetachme madagascariensis K000243079 Unknown type material Yes
Milne-Redhead, E. [5121], Ghana Chaetachme microcarpa 15920.000 No

First published in Ann. Sci. Nat., Bot., sér. 3, 10: 341 (1848)

Accepted by

  • Akoègninou, A., van der Burg, W.J. & van der Maesen, L.J.G. (eds.) (2006). Flore Analytique du Bénin: 1-1034. Backhuys Publishers.
  • Boulvert, Y. (1977). Catalogue de la Flore de Centrafrique 3: 1-89. ORSTROM, Bangui.
  • Darbyshire, I., Kordofani, M., Farag, I., Candiga, R. & Pickering, H. (eds.) (2015). The Plants of Sudan and South Sudan: 1-400. Kew publishing, Royal Botanic Gardens, Kew.
  • Exell, A.W. (1973). Angiosperms of the islands of the gulf of Guinea (Fernando Po, Príncipe, S.Tomé, and Annobon) Bulletin of the British Museum (Natural History). Botany 4: 325-411.
  • Figueiredo, E. & Smith, G.F. (2008). Plants of Angola Strelitzia 22: 1-279. National Botanical Institute, Pretoria.
  • Fischer, E., Rembold, K., Althof, A. & Obholzer, J. (2010). Annotated checklist of the vascular plants of Kakamega forest, Western province, Kenya Journal of East African Natural History 99: 129-226.
  • Germishuizen, G. & Meyer, N.L. (eds.) (2003). Plants of Southern Africa an annotated checklist Strelitzia 14: 1-1231. National Botanical Institute, Pretoria.
  • Govaerts, R. (1999). World Checklist of Seed Plants 3(1, 2a & 2b): 1-1532. MIM, Deurne.
  • Hutchinson, J., Dalziel, J.M. & Keay, R.W.J. (1954-1958). Flora of West Tropical Africa, ed. 2, 1: 1-828.
  • Kalema, J. & Beentje, H. (2012). Conservation checklist of the trees of Uganda: 1-235. Kew Publishing, Royal Botanic Gardens, Kew.
  • Launert, E. & Cope, G.V. (eds.) (1991). Flora Zambesiaca 9(6): 1-135. Royal Botanic Gardens, Kew.
  • Polhill, R.M. (1966). Flora of Tropical East Africa, Ulmaceae: 1-14.
  • Sita, P. & Moutsambote, J.-M. (2005). Catalogue des plantes vasculaires du Congo, ed. sept. 2005: 1-158. ORSTOM, Centre de Brazzaville.
  • Velayos, M., Barberá, P., Cabezas, F.J., de la Estrella, M., Fero, M. & Aedo, C. (2014). Checklist of the vascular plants of Annobón (Equatorial Guinea) Phytotaxa 171: 1-78.

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