Crataegus collina
| Crataegus collina | |
|---|---|
| Scientific classification | |
| Kingdom: | Plantae |
| (unranked): | Angiosperms |
| (unranked): | Eudicots |
| (unranked): | Rosids |
| Order: | Rosales |
| Family: | Rosaceae |
| Genus: | Crataegus |
| Series: | Punctatae (Loudon) Rehder[1] |
| Species: | C. collina |
| Binomial name | |
| Crataegus collina Chapm. | |
Crataegus collina is a type of hawthorn that is closely related to C. punctata, the dotted hawthorn,[2] and sometimes considered to be the same species.[3] A sample of C. collina and C. punctata has suggested that C. collina is polyploid, and C. punctata is diploid, but a wider sample is needed to confirm that this is generally the case.[4]
References and external links
- ↑ Phipps, J.B.; Robertson, K.R.; Smith, P.G.; Rohrer, J.R. (1990). A checklist of the subfamily Maloideae (Rosaceae). Canadian Journal of Botany. 68(10): 2209–2269.
- ↑ Phipps, J.B., O’Kennon, R.J., Lance, R.W. (2003). Hawthorns and medlars. Royal Horticultural Society, Cambridge, U.K.
- ↑ Gleason, H.A,. Cronquist, A. (1963) Manual of vascular plants of Northeastern United States and adjacent Canada. W. Grant Press, Boston, Mass., U.S.A.
- ↑ Talent, N., Dickinson, T.A. (2005). Polyploidy in Crataegus and Mespilus (Rosaceae, Maloideae): evolutionary inferences from flow cytometry of nuclear DNA amounts. Canadian Journal of Botany 83: 1268–1304
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