Haageocereus
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| Backeb. |
Haageocereus is a genus of plants from the cactus family(Cactaceae). The botanical name of the genus honors the German gardener, botanist and non-fiction author Walther Haage .
description
The species of the genus Haageocereus grow shrub-like to tree-like, with outstretched and creeping, elongated, ascending or upright shoots . The shoots usually consist of many ribs, with closely spaced areoles from which abundant thorns arise. Areoles, from which flowers arise, often have additional bristles.
The tubular to bell-shaped flowers are white to pink or red, open at night and stay open until the next day. The flower tube is strong and fleshy. The flower cup and the flower tube are covered with numerous scales and a few to many hairs. The stamens are in a single circle.
The fleshy, spherical fruits are green to red and have few scales and hairs. The remnants of the flowers are persistent. The egg-shaped seeds are glossy black and irregularly pitted.
Systematics and distribution
The species of the genus Haageocereus are common at low altitudes in western Peru and northern Chile .
The first description of the genus was made in 1934 by Curt Backeberg . The type species of the genus is Cereus pseudomelanostele . The genus includes the following species:
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Haageocereus acranthus (K.Schum. Ex Vaupel) Backeb.
- Haageocereus acranthus subsp. acranthus
- Haageocereus acranthus subsp. olowinskianus
- Haageocereus albispinus (Akers) Backeb.
- Haageocereus australis Backeb.
- Haageocereus chalaensis F. Knight
- Haageocereus decumbens (Vaupel) Backeb.
- Haageocereus fascicularis (Meyen) F.Ritter
- Haageocereus icensis Backeb. ex F. Knight
- Haageocereus icosagonoides Rauh & Backeb.
- Haageocereus lanugispinus F. Knight
- Haageocereus pacalaensis Backeb.
- Haageocereus platinospinus (Werderm. & Backeb.) Backeb.
- Haageocereus pluriflorus Rauh & Backeb.
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Haageocereus pseudomelanostele (Werderm. & Backeb.) Backeb.
- Haageocereus pseudomelanostele subsp. pseudomelanostele
- Haageocereus pseudomelanostele subsp. aureispinus
- Haageocereus pseudomelanostele subsp. carminiflorus
- Haageocereus pseudomelanostele subsp. chryseus
- Haageocereus pseudomelanostele subsp. turbidus
- Haageocereus pseudoversicolor Rauh & Backeb.
- Haageocereus subtilispinus F.Ritter
- Haageocereus tenuis F. Knight
- Haageocereus versicolor (Werderm. & Backeb.) Backeb.
- Haageocereus vulpes F. Knight
- Haageocereus zangalensis F.Ritter
A synonym of the genus is Peruvocereus Akers .
proof
literature
- Edward F. Anderson : The Great Cactus Lexicon . Eugen Ulmer KG, Stuttgart 2005, ISBN 3-8001-4573-1 , p. 331-336 .
Individual evidence
- ↑ Leaves for cactus research . 1934.
- ^ Edward F. Anderson : The great cactus lexicon . Eugen Ulmer KG, Stuttgart 2005, ISBN 3-8001-4573-1 , p. 331-336 .
further reading
- Natalia Calderón Moya-Méndez, Aldo Ceroni Stuva, Carlos Ostolaza Nano: Distribución y estado de conservación del género Haageocereus (Familia Cactaceae) en el departamento de Lima. Perú . In: Ecología Aplicada . Volume 3, number 1/2, Lima 2004, pp. 17–22, (online)
- Natalia Calderón, Daniela Zappi, Nigel Taylor, Aldo Ceroni: Taxonomy and conservation of Haageocereus Backeb. (Cactaceae) in Peru . In: Bradleya . Volume 25, 2007, pp. 45-124.
