Encephalartos dolomiticus

Encephalartos dolomiticus, the Wolkberg cycad, is a critically endangered species of cycad. It is only found in the Wolkberg at elevations of 1100–1500 meters. The area is near Penge in southeastern Limpopo Province, South Africa[2].

Wolkberg cycad

Critically Endangered  (IUCN 3.1)[1]
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Division: Cycadophyta
Class: Cycadopsida
Order: Cycadales
Family: Zamiaceae
Genus: Encephalartos
Species:
E. dolomiticus
Binomial name
Encephalartos dolomiticus
Lavranos & D.L. Goode 1988

Description

It is an arborescent plant, with a stem up to 2 m long and with a diameter of 40 cm, at the base of which often some shoots grow.

The leaves, arranged like a crown at the apex of the stem, are 60–80 cm long and bluish in color and sometimes twisted on their own axis. The lanceolate leaflets, 12–17 cm long, are arranged on the rachis in the opposite way, at an angle of 45º; the margins are whole and the lower one can be equipped with small denticles. The petiole is straight and equipped with small spines.

It is a dioecious species, with green ovoid male cones, 35–50 cm long and 10 cm broad. The female cones, of the same shape, are 30–45 cm long and have a diameter of 18–25 cm. Up to three cones can grow on each plant at a time. Macrosporophylls have a typically warty surface.

The seeds, 30–35 mm long, have an oblong shape and are covered by a yellow sarcotesta.[3]

gollark: Your nonstandard and connotation-laden definitions are *not* helpful.
gollark: But actually it just happens to do that up until n = 41 because your examples show no general trend.
gollark: To be mathy about this, consider n² + n + 41. If you substitute n = 0 to n = ~~40~~ 39, you'll see "wow, this produces prime numbers. I thought those were really hard and weird, what an amazing discovery".
gollark: Examples do not and cannot demonstrate some sort of general principle, particularly a more abstract one.
gollark: Again, some examples of things needing some sort of balance DO NOT imply it is good or generally necessary.

References

  1. "Encephalartos dolomiticus in Redlist". IUCN Red List of Threatened Species.
  2. "Encephalartos dolomiticus in Tropicos".
  3. "Encephalartos dolomiticus". PlantNET Home Page - National Herbarium of New South Wales. Retrieved 2019-09-17.


This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.