Encephalartos altensteinii

Cycad IUCN Red List Zamiaceae
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Encephalartos altensteinii
Encephalartos Altensteinii in Lednice Greenhouse.jpg
The oldest European cycad in Lednice Greenhouse, Czech Republic.
Scientific classification edit
Kingdom: Plantae
Clade: Tracheophytes
Division: Cycadophyta
Class: Cycadopsida
Order: Cycadales
Family: Zamiaceae
Genus: Encephalartos
Species:
E. altensteinii
Binomial name
Encephalartos altensteinii
Synonyms[2]
  • Encephalartos marumii de Vriese
  • Encephalartos regalis W.Bull
  • Zamia altensteinii (Lehm.) Heynh.
  • Zamia glabra J.Schust.
  • Zamia katzeri Regel ex J.Schust.
  • Zamia vroomanii Gentil

Encephalartos altensteinii is a palm-like cycad in the family Zamiaceae. It is endemic to South Africa. The species name altensteinii commemorates Altenstein, a 19th-century German chancellor and patron of science.[3] It is commonly known as the breadtree, broodboom, Eastern Cape giant cycad or uJobane (Zulu).[4] It is listed as vulnerable due to habitat destruction, use for traditional medicine and removal by collectors.[1]

Description

Male cones (above) and female cones (below)

This cycad grows up to seven metres tall and may be branched or unbranched. The leaves are straight or curved backwards and up to three metres in length. The leaflets are rigid and fairly broad with one or both margins toothed. There are no prickles at the base of the leaf which distinguishes it from E. natalensis. There are usually two to five greenish-yellow cones up to fifty centimetres long, the female scales covered with protuberances. The cones are poisonous to humans.[5] The seeds are scarlet and up to four centimetres long.[4]

Distribution and habitat

This species is widespread in the Eastern Cape and south-western KwaZulu-Natal provinces of South Africa. It favours sites near the coast including open scrub, steep rocky slopes, evergreen forests in valleys[6] and river banks. It also occurs inland at a higher altitude in isolated sites in the Amatola Mountains.[1]

References

  1. ^ a b c Donaldson, J.S. (2010). "Encephalartos altensteinii". IUCN Red List of Threatened Species. 2010: e.T41908A10589725. doi:10.2305/IUCN.UK.2010-3.RLTS.T41908A10589725.en. Retrieved 2020-01-10.
  2. ^ a b "Encephalartos altensteinii". Plants of the World Online. Royal Botanic Gardens, Kew. Retrieved 2020-07-24.
  3. ^ "Encephalartos altensteinii () description". www.conifers.org. Retrieved 2017-08-01.
  4. ^ a b Palmer, E. and Pitman, N. Trees of Southern Africa. Cape Town (1972).
  5. ^ Deneys Reitz. Commando: A Boer Journal Of The Boer War, chapter 22, "Moss-Troopers", first published by Faber and Faber in Great Britain in 1929, ISBN 0-571-08778-7
  6. ^ "Encephalartos altensteinii". plantnet.rbgsyd.nsw.gov.au. Retrieved 2017-08-01.