Vatricania guentheri ist die einzige Pflanzenart der monotypischen Gattung Vatricania in der Familie der Kakteengewächse (Cactaceae). Das Artepitheton ehrt Ernesto Günther aus Valparaíso, der den deutschen Geographen und Botaniker Carl Troll bei dessen Forschungen in Bolivien finanziell unterstützte.[1]
Vatricania guentheri wächst strauchig mit von der Basis aus verzweigten Trieben und erreicht Wuchshöhen von bis zu 2 Metern. Die aufrechten, hellgrünen Triebe haben einen Durchmesser von bis zu 10 Zentimetern. Es sind etwa 27 schwach gehöckerte Rippen vorhanden, auf denen sich gelblich weiß bewollte Areolen befinden, die 1 Zentimeter voneinander entfernt stehen. Die etwa 15 dunkelgelben Dornen sind 0,5 bis 2,2 Zentimeter lang. Das Cephalium ist bis zu 50 Zentimeter lang und besteht aus rötlich brauner bis grauer Wolle und zahlreichen Dornen mit einer Länge von 4 bis 6 Zentimeter.
Die glocken- bis röhrenförmigen, gelblich weißen Blüten sind 8 Zentimeter lang und haben Durchmesser von 2,5 bis 3 Zentimetern. Ihr Perikarpell und die Blütenröhre sind mit feiner, leicht rosafarbener Wolle besetzt. Die Früchte sind beschuppt.
Vatricania guentheri ist in Bolivien in den Departamentos Cochabamba, Chuquisaca und Santa Cruz in Höhenlagen von etwa 800 bis 1400 Metern verbreitet.
Die Erstbeschreibung als Cephalocereus guentheri erfolgte 1931 durch Walter Kupper.[2] Curt Backeberg stellte die Art 1950 in die Gattung Vatricania. Weitere nomenklatorische Synonyme sind Espostoa guentheri (Kupper) Buxb. ex Eggli (2005).[3] und Echinopsis guentheri (Kupper) Anceschi & Magli (2013).
In der Roten Liste gefährdeter Arten der IUCN wird die Art als „Near Threatened (NT)“, d. h. als gering gefährdet geführt.[4]
Vatricania guentheri ist die einzige Pflanzenart der monotypischen Gattung Vatricania in der Familie der Kakteengewächse (Cactaceae). Das Artepitheton ehrt Ernesto Günther aus Valparaíso, der den deutschen Geographen und Botaniker Carl Troll bei dessen Forschungen in Bolivien finanziell unterstützte.
Vatricania is a monotypic genus of flowering plants belonging to the family Cactaceae. It just contains one species, Vatricania guentheri (Kupper) Backeb.Greenm. ex Gleason [2] It has the common name of Red Tail Cactus.[3][4]
Its native range is Bolivia.[2][3] It is found in dry forest vegetation or covering hillsides, at altitudes of 800–1,300 metres (2,600–4,300 ft) metres above sea level.[5]
An evergreen, perennial columnar cactus.[3][4][6] It can grow up to 2 m (6 ft 7 in) tall.[3] Branching occurs from the base, with pale green stems up to 10 cm (4 in) in diameter.[4] It has about 27 ribs.[3][4][6] The flowers are initially borne in a cephalium (reddish brown wool,[4]) running down from the crown (top of the plant) on one side, of the branches,[3] later in a superficial dome cephalium.[6] It blooms during the early summer and develops yellowish whitish flowers that get up to 8 cm long and 5–3 cm (2–1 in) in diameter.[3] The flowers are yellowish white areoles or funnel shaped flowers,[4] with 25 spines, 5–22 mm (0–1 in) long.[3][4] It has edible fruit.[4]
The genus name of Vatricania is in honour of Louis Félix Vatrican (1904–2007), an agricultural engineer from Monaco, director of the national Jardin Exotique.[7] The Latin specific epithet of guentheri refers to Ernesto Günther of Valparaíso, Chile, who financed the expedition in Bolivia during which Carl Troll discovered the species. Kupper had originally spelled the epithet Güntheri.[8]
The genus was first described and published in Cact. Succ. J. (Los Angeles) vol.22 on page 154 in 1950.[2] Then the species was published in Cact. Succ. J. (Los Angeles) Vol.23 on page 149 in 1951.[1]
It was originally named in 1931 as Cephalocereus guentheri Kupper, being named after Ernesto Günther. Then in 1950 the famous German cactologist Curt Backeberg created the monotypic genus of Vatricania to accommodate this unique species, it was lumped into Espostoa in 1959.[9]
Vatricania was once thought to be a synonym of Espostoa Britton & Rose, (or still is in some sources,[5][10]) including by the United States Department of Agriculture and the Agricultural Research Service in 2005, and they also do not list any known species.[11] Or it might have a hybrid origin as there are differences from Espostoa.[12] Also current molecular evidence suggests that Espostoa is not the correct placement for this species.[9]
The name is accepted by the Royal Horticultural Society in the UK.[13]
It is placed in Trichocereinae Tribe.[14]
Can be grown in the USA,[4] in Zone USDA: 9b-11.[3] It can survive a minimum average temperature of 55°F (12°C) and can tolerate positions in full sun.[3]
Vatricania is a monotypic genus of flowering plants belonging to the family Cactaceae. It just contains one species, Vatricania guentheri (Kupper) Backeb.Greenm. ex Gleason It has the common name of Red Tail Cactus.
Its native range is Bolivia. It is found in dry forest vegetation or covering hillsides, at altitudes of 800–1,300 metres (2,600–4,300 ft) metres above sea level.
Vatricania guentheri (Kupper) Backeb. è una pianta succulenta della famiglia delle Cactacee. È l'unica specie nota del genere Vatricania Backeb..[2]
Fusto alto fino a due metri, tra gli 8 e i 10 cm di diametro, composto da 12 a 17 costolature arrotondate.
L'areale della specie è ristretto alla valle di Rio Grande de Lipez, nella parte meridionale delle Ande boliviane, tra gli 800 e i 1300 m di altitudine.[1]
La Lista rossa IUCN classifica Vatricania guentheri come specie prossima alla minaccia di estinzione (Near Threatened).[1]
Vatricania guentheri (Kupper) Backeb. è una pianta succulenta della famiglia delle Cactacee. È l'unica specie nota del genere Vatricania Backeb..
Espostoa guentheri là một loài thực vật có hoa trong họ Cactaceae. Loài này được (Kupper) Buxb. mô tả khoa học đầu tiên năm 1959.[1]
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Espostoa guentheri là một loài thực vật có hoa trong họ Cactaceae. Loài này được (Kupper) Buxb. mô tả khoa học đầu tiên năm 1959.
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