Willdenowia 37
Willdenowia – Annals of the Botanic Garden and
Botanical Museum Berlin-Dahlem
ISSN 0511-9618
© 2007 BGBM Berlin-Dahlem.
Tillich, H.-J., Tuckett, R. & Facher, E. 2007: Do Hydatellaceae belong
to the monocotyledons or basal angiosperms? Evidence from seedling morphology.
Willdenowia 37: 399-406.
doi:10.3372/wi.37201
Abstract
Seedlings of Hydatellaceae are described for the first time. The seedlings
of three species from SW Australia, Hydatella dioica, Trithuria submersa and
T. bibracteata were investigated. All proved monocotylar, the cotyledon
structure as well as the overall seedling morphology being typical for the
monocotyledons. The results are discussed in the light of recent molecular
analyses. Seedling morphology does not support the assignment of the family to the
Nymphaeales and basal angiosperms, respectively.
Key words
systematics, Hydatella, Trithuria, cotyledon structure.
