Seed Involucre variation of Carpinus betulus (Corylaceae) in Poland
|Seed Involucre variation of Carpinus betulus (Corylaceae) in Poland
Boratyński Adam*1, Boratyńska Krystyna1, Mazur Małgorzata2,
and Marcysiak Katarzyna2
1Institute of Dendrology, Polish Academy of Sciences, ul. Parkowa 5, 62-035 Kórnik, Poland
2Institute of Biology and Environmental Protection, Kazimierz Wielki University,
Al. Ossolińskich 12, 85-072 Bydgoszcz, Poland
* e-mail: email@example.com
Received October 25, 2006; revision accepted July 2, 2007
The paper uses statistical methods to examine whether origination from different Pleistocene centers influences the present-day variation of Carpinus betulus in Poland. Twenty-nine populations of the species were sampled in communities of the Carpinion betuli alliance in most of the country. Samples of 100 involucres for each population were analyzed for 26 morphological characters. Despite the rather accidental similarities among the sampled populations, their geographic variation confirmed their origin from at least two different refugia, southeast and west.
Key words: Carpinus betulus, involucres, morphology, plant geography, plant variation, Holocene migration, migration pathways.