Afro yellow woods
| Afro yellow woods | ||||||||||||
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Slender Afro yellowwood ( Afrocarpus gracilior ) |
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| Scientific name | ||||||||||||
| Afrocarpus | ||||||||||||
| ( J.Buchholz & EGGray ) CNPage |
The Afro yellow wood or African stone slices ( Afrocarpus ) are a genus of plants in the family of stone slices (Podocarpaceae). The approximately five species are distributed from eastern and tropical to southern Africa.
description
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Vegetative characteristics
Afrocarpus species are evergreen trees . The leaves are not needle-shaped, but lanceolate, coarse and leathery.
Generative characteristics
Afrocarpus species are dioeciously segregated ( diocesan ). The seeds are surrounded by a seed coat ( arillus ) (as with stone slices , hence the German common name "African stone slices").
Records
A specimen of the species Afrocarpus falcatus with a height of over 36 meters is in the Tsitsikamma Park in Paarl, South Africa. It is called the "Big Tree" and is a popular tourist destination. The trunk has a length of 18 meters, a circumference of 8.5 meters and a volume of about 51 m³. The treetop has a diameter of 33 meters. This specimen is said to be over 1000 years old.
Systematics
The genus Afrocarpus was founded in 1989 by Christopher Nigel Page in New and maintained genera in the conifer families Podocarpaceae and Pinaceae. In: Notes of the Royal Botanical Garden Edinburgh , Volume 45, Issue 2, pp. 377-395 and includes former species of the genera Podocarpus and Nageia .
The genus Afrocarpus Salisb. contains about five types:
- Afrocarpus dawei (Stapf) CNPage (Syn .: Podocarpus dawei Stapf , Podocarpus usumbarensis var. Dawei (Stapf) Melv. ): It comes in Uganda (in the provinces and in the northern Tanzania Kagara and Mara before).
- Afrocarpus gaussenii ( Afrocarpus falcatus (Thunb.) CNPage , Syn .: Taxus falcata Thunb. , Podocarpus falcatus (Thunb.) Endl. , Nageia falcata (Thunb.) Carr. , Decussocarpus falcatus (Thunb.) De Laub. , Podocarpus gaussenii Woltz , Afrocarpus gaussenii (Woltz) CNPage ): It occurs from southern Mozambique to South Africa .
- Slender Afro yellowwood ( Afrocarpus gracilior (Pilg.) CNPage , Syn .: Podocarpus gracilior Pilger , Decussocarpus gracilior (Pilg.) De Laub. ): It occurs in Ethiopia , Kenya , Tanzania , Uganda and maybe in Sudan.
- Afrocarpus mannii (Hook. F.) CNPage (Syn: Podocarpus mannii Hook. F. , Nageia mannii (Hook. F.) Kuntze , Decussocarpus mannii (Hook. F.) De Laub. ): This endemic thrives only on the Pico volcano de São Tomé at altitudes of 1450 meters to the summit at an altitude of 2142 meters on the island in the Gulf of Guinea São Tomé .
- Afrocarpus usambarensis (Pilg.) CNPage (Syn .: Podocarpus usambarensis Pilger ex Engl. ): It thrives at altitudes of 1500 to 3000 meters in Tanzania (in the districts of Lushoto and Mbulu ) and in Kenya . There are reports that it is also said to occur in Burundi, Rwanda and Uganda. The specific epithet refers to the Tanzanian Usambara Mountains .
swell
- Christopher J. Earle: Afrocarpus. In: The Gymnosperm Database. May 8, 2019, accessed May 17, 2019 .
- A. Farjon: A handbook of the world's Conifers , 1, pp. 1-526. BRILL, Leiden, Boston, 2010.
- Christopher Nigel Page: New and maintained genera in the conifer families Podocarpaceae and Pinaceae. In: Notes of the Royal Botanical Garden Edinburgh , Volume 45, Issue 2, 1989, pp. 377-395.
Individual evidence
- ↑ a b c d e f g h i Christopher J. Earle: Afrocarpus. In: The Gymnosperm Database. February 28, 2019, accessed on May 16, 2019 .
