Drosera obovata MERT et KOCH which is found in OSE shows an intermediate form between
Drosera anglica HUDSON and
Drosera rotundifolia L. Comparing the specimens, which were sent from the european botanical museums, with japanese
Drosera obovata, the morphological feature with special reference to its lamina is discussed.
A cytological study of three species of
Drosera above mentioned is described.
Drosera anglica HUDSON 2
n=40
n=20
Drosera rotundifolia L. 2
n=20
n=10
Drosera obovata MERT et KOCH 2
n=30
Meiosis in
Drosera obovata shows 10 bivalent chromosomes and 10 univalent chromosomes (10
II+10
I). Cytological studies of
D. obovata especially the behaviour of chromosomes lead to the conclusion that
D.
obovata is the hybrid between
D. anglica and
D. rotundifolia.
View full abstract