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

  1. 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.
  2. Phipps, J.B., O’Kennon, R.J., Lance, R.W. (2003). Hawthorns and medlars. Royal Horticultural Society, Cambridge, U.K.
  3. 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.
  4. 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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