Encephalartos hildebrandtii

Encephalartos hildebrandtii is a species of cycad in the Zamiaceae family.[2] It is native to Kenya and Tanzania at elevations from sea level to 600 metres (2,000 ft).[3] The species is named for the German explorer Johann Maria Hildebrandt.[4]

Encephalartos hildebrandtii
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Gymnosperms
Division: Cycadophyta
Class: Cycadopsida
Order: Cycadales
Family: Zamiaceae
Genus: Encephalartos
Species:
E. hildebrandtii
Binomial name
Encephalartos hildebrandtii
A.Braun & C.D.Bouché

Description

These plants have an erect stem, without branches, about 6 meters high and 30 cm in diameter, covered with linear cataphyll, covered with a thick yellowish hairs.[5]

The leaves, arranged in a crown at the apex of the stem, supported by a tomentose petiole 1–7 cm long, are 200–300 cm long and are composed of numerous lanceolate leaflets, 20–26 cm long, 28–36 mm wide, arranged on the spine at 45-80°; the basal leaflets are reduced to thorns.

It is a dioecious species, with male specimens having 1-7 cylindrical-fusiform cones, sessile, green or yellow in color, 20–50 cm long and 5–9 cm in diameter, with large, rhombic-shaped microsporophylls, and specimens feminine that hold from 1 to 4 cylindrical cones, of yellow color, 28–60 cm long and 15–25 cm broad, with rhomboid macrosporophylls.

The seeds have an oblong shape, are 28–60 mm long, 15–25 cm in diameter and are covered by a yellow-to-red color sarcotesta.

  • Cone
    Cone
  • Trunk
    Trunk
  • Leaves
    Leaves

References
  1. Eastern Arc Mountains.; Coastal Forests CEPF Plant Assessment Project.; Bösenberg, J.D. (2010). "Encephalartos hildebrandtii". IUCN Red List of Threatened Species. 2010: e.T41931A10603165. doi:10.2305/IUCN.UK.2010-3.RLTS.T41931A10603165.en. Retrieved 19 November 2021.
  2. "Encephalartos hildebrandtii A.Braun & C.D.Bouché". Plants of the World Online. The Trustees of the Royal Botanic Gardens, Kew. n.d. Retrieved September 25, 2020.
  3. "Encephalartos hildebrandtii in Tropicos".
  4. Beentje HJ (1998). "J. M. Hildebrandt (1847 – 1881): Notes on His Travels and Plant Collections". Kew Bulletin. 53 (4): 835–856. doi:10.2307/4118872. JSTOR 4118872.
  5. "Encephalartos hildebrandtii". PlantNET Home Page - National Herbarium of New South Wales. Retrieved 2019-09-17.


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