Mammillaria longiflora
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Mammillaria longiflora |
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| ( Britton & Rose ) A. Berger |
Mammillaria longiflora is a species of the genus Mammillaria in the cactus family(Cactaceae). The specific epithet longiflora is derived from the Latin words longus for 'long' and -florus for '-blütig' and refers to flowers of the species.
description
Mammillaria longiflora usually grows singly or occasionally in groups. The spherical to short cylindrical, dark green shoots are 8 to 9 centimeters in diameter. The cylindrical warts are without milky sap . The axillae are bare. The 3 to 4 central spines are reddish brown to yellowish white and 0.5 to 2.5 centimeters long. They are lighter in color at the base and have a thickened base. The lowest central spine is hooked and up to 3 centimeters long. Sometimes the central spines are completely absent. The up to 30 radial spines are light yellow to white in color and 1 to 1.3 centimeters long.
The bell-shaped to funnel-shaped flowers are light to dark purple-pink or pink-red. They are 2.5 to 4 inches long and 2 to 3 inches in diameter. The flower tube remains sunk deep into the body. The fruits are small and also sunk into the plant body. They contain black seeds .
Distribution, systematics and endangerment
Mammillaria longiflora is common in the Mexican states of Chihuahua , Durango, and Zacatecas .
It was first described in 1923 as Neomammillaria longiflora by Nathaniel Lord Britton and Joseph Nelson Rose . Alwin Berger introduced the species to Mammillaria in 1929 .
Synonyms are: Neomammillaria longiflora Britton & Rose (1923), Chilita longiflora (Britton & Rose) Orcutt (1926), Krainzia longiflora (Britton & Rose) Backeb. (1938), Phellosperma longiflora (Britton & Rose) Buxb. (1951), Mammillaria stampferi Repp. (1979) Mammillaria longiflora f. stampferi (Repp.) DRHunt (1979) and Krainzia longiflora subsp. stampferi (Rep.) Doweld (2000).
The following subspecies are distinguished:
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Mammillaria longiflora subsp. longiflora :
The nominate form usually has 4 central spines. Flowers light to dark purple-pink. -
Mammillaria longiflora subsp. stampferi (Repp.) DRHunt :
The first description was in 1979 as Mammillaria stampferi by Werner Reppenhagen . David Richard Hunt introduced the species in 1997 as a subspecies to Mammillaria longiflora . The subspecies rarely has only one central spine, otherwise it is absent. The flowers are uniformly pink.
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 . 2nd Edition. Eugen Ulmer KG, Stuttgart 2011, ISBN 978-3-8001-5964-2 , pp. 392 .
- Ulises Guzmán, Salvador Arias, Patricia Dávila: Catálogo de cactáceas mexicanas . Universidad Nacional Autónoma de México, Mexico City 2003, ISBN 970-9000-20-9 , pp. 137 .
Individual evidence
- ↑ Urs Eggli, Leonard E. Newton: Etymological Dictionary of Succulent Plant Names . Springer, Berlin / Heidelberg 2010, ISBN 978-3-642-05597-3 , pp. 139-140.
- ^ NL Britton , JN Rose : The Cactaceae. Descriptions and Illustrations of Plants of the Cactus Family . tape IV . The Carnegie Institution of Washington, Washington 1923, p. 163 ff . ( online ).
- ↑ Alwin Berger: Cacti - instructions for culture and knowledge of the most important introduced species . Eugen Ulmer, Stuttgart 1929, p. 296 .
- ↑ Werner Reppenhagen: Mammillaria stampferi spec. nov. In: Cacti and other succulents . Vol. 30, No. 8, 1979, p. 187.
- ↑ DR Hunt: Mammillaria Postscripts . Volume 6, 1997, p. 5
- ↑ Mammillaria longiflora in the IUCN Red List of Threatened Species 2013.2. Listed by: Fitz Maurice, WA & Fitz Maurice, B, 2009. Retrieved December 25, 2013.
