Eriosyce Heinrichiana
| Eriosyce Heinrichiana | ||||||||||||
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Eriosyce heinrichiana subsp. intermedia |
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| Eriosyce Heinrichiana | ||||||||||||
| ( Backeb. ) Katt. |
Eriosyce heinrichiana is a species of plant in the genus Eriosyce from the cactus family(Cactaceae). The epithet of the species honors the German cactus lover Walter Heinrich.
description
Eriosyce heinrichiana grows with a spherical or elongated plant body, which is brownish to blackish green in color and reaches a diameter of 4 to 10 centimeters. The plants form a large taproot, which narrows like a neck at the transition to the plant body. The 14 to 22 ribs are divided into cusps . The straight to curved thorns are stiff and needle-like, sometimes they are missing. They are divided into 1 to 4 central spines, which are 0.3 to 1.5 centimeters long, and 6 to 10 radial spines of up to 1.2 centimeters in length. The funnel-shaped flowers only appear on the young areoles and are creamy-yellow to reddish in color. They are 3 to 5 inches long and wide. The pericarpel and the flower tube are covered with tufts of wool and bristles.
The egg-shaped, thin-walled fruits are red and fleshy. They are up to 1.5 centimeters long and open at a basal pore.
Distribution, systematics and endangerment
Eriosyce heinrichiana is widespread in northern to central Chile near the coast and in the hills of the coastal cordillera . The distribution area extends from Huasco to south of the Rio Limarí .
It was first described as Horridocactus heinrichianus in 1942 by Curt Backeberg. However, Friedrich Ritter combined the species to Pyrrhocactus heinrichianus in 1959 . The conversion to Neoporteria curvispina var. Heinrichiana, which was carried out in 1966 by John Donald Donald and Gordon Douglas Rowley , was referred to by Ritter as a pure conjecture, since the species differs significantly in habit from the taxon curvispinus . Ritter himself claims that he never found the plant on his extensive field trips and suspects a hybrid that Backeberg used to describe the plant. This is conclusive insofar as the Backeberg only had a single plant for the first description. In his work Cacti in South America, Volume 3, Ritter himself distances himself from his description from 1959 and describes the plant at that time as Pyrrhocactus chaniarensis F. Ritter spec. nov. and justifies this with numerous different characteristics to Horridocactus heinrichianus . The species name chaniarensis is now a synonym for Eriosyce heinrichiana .
Another recombination took place in 1991 by Roger M. Ferryman by raising the variety to the species rank ( Neoporteria heinrichiana ). In 1994, Fred Kattermann made the current recombination to Eriosyce heinrichiana . There are three subspecies and one variety:
- Eriosyce heinrichiana subsp. heinrichiana (body dark brown and only rarely elongated)
- Eriosyce heinrichiana subsp. intermedia (body occasionally elongated)
- Eriosyce heinrichiana subsp. simulans (body often elongated and often covered with long white wool in the crown)
- Eriosyce heinrichiana var. Setosiflora (body not lengthened), the variety can hardly be separated from the subspecies intermedia and is assigned to intermedia by Kattermann as a variety .
In the Red List of Threatened Species of the IUCN , the species is listed as " Least Concern (LC) ". H. listed as not endangered.
proof
literature
- Edward F. Anderson : The Great Cactus Lexicon . Eugen Ulmer KG, Stuttgart 2005, ISBN 3-8001-4573-1 , p. 260 .
- Cacti in South America . Volume 3: Chile, 1980, Friedrich Ritter self-published
Individual evidence
- ↑ Urs Eggli, Leonard E. Newton: Etymological Dictionary of Succulent Plant Names . Birkhäuser, 2004, ISBN 3-540-00489-0 , p. 106
- ↑ Cactus science . 1942, p. 8
- ^ Succulenta . 1959, no. 10
- ↑ Eriosyce (Cactaceae): The genus revised and amplified . In: Succulent Plant Research . Volume 1, 1994, p. 118
- ↑ Eriosyce heinrichiana in the Red List of Threatened Species of the IUCN 2013.2. Posted by: Faundez, L., Guerrero, P., Saldivia, P. & Walter, HE, 2011. Retrieved January 19, 2014.
