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Matucana krahnii

From Wikipedia, the free encyclopedia

Matucana krahnii
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Order: Caryophyllales
Family: Cactaceae
Subfamily: Cactoideae
Genus: Matucana
Species:
M. krahnii
Binomial name
Matucana krahnii
(Donald) Bregman 1986
Synonyms
  • Borzicactus krahnii Donald 1979
  • Matucana calliantha F.Ritter 1981
  • Matucana calliantha var. prolifera F.Ritter 1981

Matucana krahnii is a species of Matucana found in Peru.[2]

Description

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Matucana krahnii usually grows solitary and only rarely sprouts with flattened spherical to short cylindrical, grey-green shoots and reaches heights of 10 to 14 cm (3.9 to 5.5 in) with a diameter of 5 to 10 cm (2.0 to 3.9 in). There are 10 to 18 low and broad, conically bumpy ribs present. The mostly curved, pliable, yellowish-brown spines turn gray with age. The one to four central spines are 2 to 15 cm (0.79 to 5.91 in) and 8 to 18 radial spines 1.5 to 5 cm (0.59 to 1.97 in) long.

The straight to slightly curved, crimson flowers are up to 8.5 cm (3.3 in) long and have a diameter of 7 cm (2.8 in). The spherical, green fruits reach a diameter of up to 1 cm (0.39 in).[3]

Distribution

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Matucana krahnii is found in the Peruvian Amazon region north of the town of Balsas on steep sandstone slopes at altitudes of 1650 to 1750 meters.

Taxonomy

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The first description as Borzicactus krahnii was in 1979 by John Donald Donald.[4] The specific epithet krahnii honors the German cactus collector Wolfgang Krahn (* 1939). Rob Bregman placed the species in the genus Matucana in 1986.

References

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  1. ^ Assessment), Jose Roque (Global Cactus (2011-05-05). "The IUCN Red List of Threatened Species". IUCN Red List of Threatened Species. Retrieved 2023-09-04.
  2. ^ "Matucana krahnii (Donald) Bregman". Plants of the World Online. Retrieved 2023-09-04.
  3. ^ Anderson, Edward F.; Eggli, Urs (2005). Das grosse Kakteen-Lexikon (in German). Stuttgart (Hohenheim): Ulmer. p. 420. ISBN 3-8001-4573-1.
  4. ^ "Cactus and Succulent Journal March-April 1979: Vol 51 Iss 2 : Free Download, Borrow, and Streaming : Internet Archive". Internet Archive. 2023-03-25. Retrieved 2023-09-04.
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