Crataegus × macrocarpa
| 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 | |
Crataegus × macrocarpa, is a hybrid between two species of Crataegus (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 confused with C. × media,[3] the hybrid between C. monogyna and C. laevigata.
Under the rules of botanical nomenclature the name C. × macrocarpa covers all intermediate forms between the two parent species, including backcrosses.
Its fruit persists for an average of 40.6 days, and bears an average of 1.0 seeds per fruit. Fruits average 72.5% water.[4]
References
[edit]- ^ a b 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.
- ^ 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.
- ^ Flora of Ireland information about C. × media
- ^ Ehrlén & Eriksson 1991.
Bibliography
[edit]- Ehrlén, Johan; Eriksson, Ove (1991). "Phenological variation in fruit characteristics in vertebrate-dispersed plants". Oecologia. 86 (4): 463–470. doi:10.1007/BF00318311. ISSN 0029-8549.
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