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- Title
Hypseocharis reveals early history of physical dormancy in Geraniaceae.
- Authors
Vandelook, Filip; Van de Vyver, Ann; Gareca, Edgar E.
- Abstract
Hypseocharis is a genus endemic to the high Andes and sister to all other Geraniaceae genera. Regarding its basal position in Geraniaceae evolution, its germination ecology can provide important insights into the early evolution of physical dormancy. Imbibition tests performed on seeds of two Hypseocharis populations from Bolivia indicate that their seeds indeed have physical dormancy like all other Geraniaceae. These results indicate that physical dormancy in Geraniaceae evolved during the Eocene before the uplift of the Andes mountains and before the events that led to the cross-Atlantic disjunct distribution of Geraniacae.
- Subjects
GERANIACEAE; DORMANCY in plants; GERMINATION; GERANIALES; EOCENE Epoch
- Publication
Seed Science Research, 2017, Vol 27, Issue 1, p39
- ISSN
0960-2585
- Publication type
Article
- DOI
10.1017/S096025851600026X