Crataegus × macrocarpa

Crataegus × macrocarpa, is a hybrid between two species of hawthorn (Hawthorn), C. laevigata and C. rhipidophylla, both in series Crataegus.[1] A chemotaxonomic investigation comparing flavonoid patterns in C. × macrocarpa and its putative parent species corroborated their supposed relationship.[2] It is sometimes confounded with C. × media,[3] the hybrid between C. monogyna and C. laevigata.

Crataegus × macrocarpa
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Rosales
Family: Rosaceae
Genus: Crataegus
Section: Crataegus sect. Crataegus
Series: Crataegus ser. Crataegus
Species:
C. × macrocarpa
Binomial name
Crataegus × macrocarpa
Synonyms[1]

synonyms include
C. eremitagensis Raunk.
C. schumacheri Raunk.
C. calycina Peterm.

Under the rules of botanical nomenclature the name C. × macrocarpa covers all intermediate forms between the two parent species, including backcrosses.

References

  1. Christensen, Knud Ib (1992). Revision of Crataegus sect. Crataegus and nothosect. Crataeguineae (Rosaceae-Maloideae) in the Old World. Ann Arbor, Mich: American Society of Plant Taxonomists. ISBN 0-912861-35-5.
  2. Ringl, Alexandra; Prinz, Sonja; Huefner, Antje; Kurzmann, Michael; Kopp, Brigitte (2007). "Chemosystematic Value of Flavonoids from Crataegus × macrocarpa (Rosaceae) with special Emphasis on (R)- and (S)-Eriodictyol-7-O-glucuronide and Luteolin-7-O-glucuronide". Chemistry & Biodiversity. 4 (2): 154–162. doi:10.1002/cbdv.200790020. ISSN 1612-1872. PMID 17311228.
  3. Flora of Ireland information about C. × media


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