Discocactus zehntneri
| Discocactus zehntneri | |
|---|---|
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Scientific classification 
| |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Order: | Caryophyllales |
| Family: | Cactaceae |
| Subfamily: | Cactoideae |
| Genus: | Discocactus |
| Species: | D. zehntneri
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| Binomial name | |
| Discocactus zehntneri Britton & Rose
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| Synonyms | |
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Discocactus zehntneri is a species of Discocactus found in Brazil.[2]
Description
[edit]Discocactus zehntneri is a solitary cactus characterized by its dull-green, spherical or flattened spherical shape, growing up to 7 centimeters tall and 10 centimeters in diameter. It features 12 to 20 slightly tubercled ribs, each up to 10 millimeters high, with areoles that are somewhat sunken into these ribs. The cactus boasts strong spines that are white or yellowish at the base, darkening at the tips, and turning to light brown or whitish towards the ends. These spines are downturned and densely packed, effectively hiding the plant's body from view. Notably, there is no central spine. It has approximately 11 radial spines that resemble combs and can reach up to 4.2 centimeters in length. The cephalium, which is formed of cream to white wool and yellowish to brown bristles measuring up to 2 centimeters long, can grow up to 1 centimeter high and has a diameter of 3.5 centimeters. The flowers of Discocactus zehntneri are slender and funnel-shaped, reaching lengths of up to 9 centimeters. Its fruit is club-shaped, red, and can grow up to 2.5 centimeters long.[3]
Subspecies
[edit]Accepted subspecies:[4]
| Image | Subspecies | Distribution |
|---|---|---|
| Discocactus zehntneri subsp. alagoinhensis Zachar & Halfar | Brazil (Piauí) | |
.jpg) |
Discocactus zehntneri subsp. boomianus (Buining & Brederoo) N.P.Taylor & Zappi | Brazil (N. Bahia) |
| Discocactus zehntneri subsp. mirohalfarii Zachar | Brazil (Piauí) | |
 |
Discocactus zehntneri subsp. zehntneri | Brazil (N. Bahia) |
Distribution
[edit]This species is commonly found in the northern Brazilian state of Bahia, growing between rocks in sand and gravel at elevations between 400 and 1100 meters. [5]
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Pilosocereus zehntneri ssp. boomianus growing in Bahia, Brasil habitat
Taxonomy
[edit]It was first described in 1922 by Nathaniel Lord Britton and Joseph Nelson Rose, with the specific name "zehntneri" honoring Swiss biologist Leo Zehntner.[6]
References
[edit]- ^ Kew), Nigel Taylor (RBG; Assessment), Pierre Braun (Global Cactus (2010-06-04). "The IUCN Red List of Threatened Species". IUCN Red List of Threatened Species. Retrieved 2024-03-31.
- ^ "Discocactus zehntneri Britton & Rose". Plants of the World Online. 1989-01-01. Retrieved 2024-01-02.
- ^ Anderson, Edward F.; Eggli, Urs (2005). Das grosse Kakteen-Lexikon (in German). Stuttgart (Hohenheim): Ulmer. p. 182. ISBN 3-8001-4573-1.
- ^ "Discocactus zehntneri Britton & Rose". Plants of the World Online. 1989-01-01. Retrieved 2025-03-19.
- ^ "Discocactus zehntneri". LLIFLE. 2013-08-04. Retrieved 2025-03-19.
This article incorporates text from this source, which is available under the CC BY-SA 3.0 license.
- ^ Britton, Nathaniel Lord; Eaton, Mary E.; Rose, J. N.; Wood, Helen Adelaide (1919). The Cactaceae : descriptions and illustrations of plants of the cactus family. Washington: Carnegie Institution of Washington. doi:10.5962/bhl.title.46288. Retrieved 2025-03-19.
External links
[edit]
Media related to Discocactus zehntneri at Wikimedia Commons
Data related to Discocactus zehntneri at Wikispecies
