Cochemiea macdougallii forms loose cushions. The spherical to short cylindrical shoots are pale gray-green epidermis and have a diameter of 3 to 4 centimeters. The spirally arranged warts are low, somewhat flattened, rhomboid and tiny dotted. The areoles are woolly in the upper part, have thorns and are sometimes furrowed. The black to whitish, upright central spine has a dark tip and is 4 to 5 millimeters long. The 7 to 8 marginal spines are whitish with dark tips and are 5 to 10 millimeters long.
The yellow, funnel-shaped flowers appear from the axillae. They open during the day, are 2 to 3 centimeters long and 1.8 to 2.5 centimeters in diameter. The flower cup is woolly, but has no scales.
The dull red, dry fruits when ripe are spherical to slightly elongated and have a persistent flower remnant. They contain almost spherical, black to brown, dotted seeds.[2]
Plant
Distributionedit
Cochemiea macdougallii is common in the Mexican state of Oaxaca, where it grows on limestone cliffs.
Taxonomyedit
The species was found in the winter of 1951/52 by Thomas Baillie MacDougall (1895–1973) near the village of San José Lachiguirí.[3] The specific epithet macdougallii honors Thomas Baillie MacDougall (1895–1973), the discoverer of the species. The first description as Ortegocactus macdougallii in the monotypic genus Ortegocactus was made in 1961 by Edward Johnston Alexander.[4] It was the only species in Alexander's genus Ortegocactus. Ortegocactus was later synonymized with Cochemiea, but a name in that genus was only provided in 2021.[1][5] Peter B. Breslin and Lucas C. Majure placed the species in the genus Cochemiea in 2021. Further nomenclature synonyms are Neobesseya macdougallii (Alexander) Kladiwa (1974) and Escobaria macdougallii (Alexander) V.John & Říha (1981).
^Anderson, Edward F.; Eggli, Urs (2005). Das grosse Kakteen-Lexikon (in German). Stuttgart (Hohenheim): Ulmer. p. 487. ISBN3-8001-4573-1.
^"Cactus and Succulent Journal March-April 1961: Vol 33 Iss 2 : Free Download, Borrow, and Streaming : Internet Archive". Internet Archive. 2023-03-25. Retrieved 2023-11-05.
^Breslin, Peter B.; Wojciechowski, Martin F. & Majure, Lucas C. (2021), "Molecular phylogeny of the Mammilloid clade (Cactaceae) resolves the monophyly of Mammillaria", Taxon, 70 (2): 308–323, doi:10.1002/tax.12451
External linksedit
Media related to Cochemiea macdougallii at Wikimedia Commons
Data related to Cochemiea macdougallii at Wikispecies
January 01, 1970
cochemiea, macdougallii, species, cactus, genus, cochemiea, scientific, classification, kingdom, plantae, clade, tracheophytes, clade, angiosperms, clade, eudicots, order, caryophyllales, family, cactaceae, subfamily, cactoideae, genus, cochemiea, species, mac. Cochemiea macdougallii is a species of cactus in the genus Cochemiea 1 Cochemiea macdougallii Scientific classification Kingdom Plantae Clade Tracheophytes Clade Angiosperms Clade Eudicots Order Caryophyllales Family Cactaceae Subfamily Cactoideae Genus Cochemiea Species C macdougallii Binomial name Cochemiea macdougallii Alexander P B Breslin amp Majure 1 Synonyms Escobaria macdougallii Alexander V John amp Riha Neobesseya macdougallii Alexander Kladiwa Ortegocactus macdougallii Alexander Contents 1 Description 2 Distribution 3 Taxonomy 4 References 5 External linksDescription editCochemiea macdougallii forms loose cushions The spherical to short cylindrical shoots are pale gray green epidermis and have a diameter of 3 to 4 centimeters The spirally arranged warts are low somewhat flattened rhomboid and tiny dotted The areoles are woolly in the upper part have thorns and are sometimes furrowed The black to whitish upright central spine has a dark tip and is 4 to 5 millimeters long The 7 to 8 marginal spines are whitish with dark tips and are 5 to 10 millimeters long The yellow funnel shaped flowers appear from the axillae They open during the day are 2 to 3 centimeters long and 1 8 to 2 5 centimeters in diameter The flower cup is woolly but has no scales The dull red dry fruits when ripe are spherical to slightly elongated and have a persistent flower remnant They contain almost spherical black to brown dotted seeds 2 nbsp PlantDistribution editCochemiea macdougallii is common in the Mexican state of Oaxaca where it grows on limestone cliffs Taxonomy editThe species was found in the winter of 1951 52 by Thomas Baillie MacDougall 1895 1973 near the village of San Jose Lachiguiri 3 The specific epithet macdougallii honors Thomas Baillie MacDougall 1895 1973 the discoverer of the species The first description as Ortegocactus macdougallii in the monotypic genus Ortegocactus was made in 1961 by Edward Johnston Alexander 4 It was the only species in Alexander s genus Ortegocactus Ortegocactus was later synonymized with Cochemiea but a name in that genus was only provided in 2021 1 5 Peter B Breslin and Lucas C Majure placed the species in the genus Cochemiea in 2021 Further nomenclature synonyms are Neobesseya macdougallii Alexander Kladiwa 1974 and Escobaria macdougallii Alexander V John amp Riha 1981 References edit a b c Cochemiea macdougallii Alexander P B Breslin amp Majure The International Plant Names Index retrieved 2022 03 05 Anderson Edward F Eggli Urs 2005 Das grosse Kakteen Lexikon in German Stuttgart Hohenheim Ulmer p 487 ISBN 3 8001 4573 1 Cactus and Succulent Journal March April 1961 Vol 33 Iss 2 Free Download Borrow and Streaming Internet Archive Internet Archive 2023 03 25 Retrieved 2023 11 05 Ortegocactus macdougallii Alexander The International Plant Names Index retrieved 2022 03 05 Breslin Peter B Wojciechowski Martin F amp Majure Lucas C 2021 Molecular phylogeny of the Mammilloid clade Cactaceae resolves the monophyly of Mammillaria Taxon 70 2 308 323 doi 10 1002 tax 12451External links edit nbsp Media related to Cochemiea macdougallii at Wikimedia Commons nbsp Data related to Cochemiea macdougallii at Wikispecies Retrieved from https en wikipedia org w index php title Cochemiea macdougallii amp oldid 1183587015, wikipedia, wiki, book, books, library,
