THE INHERITANCE OF THE FLOWER 
COLOUR AND THE SEED COLOUR 
IN LUPINUS ANGUSTIFOLIUS 
BY CARL HALLQVIST 
WEIBULLSHOLM, LANDSKRONA 
ee types of flower colour and seed colour are known in 
Lupinus angustifolius since long ago. The data have been 
brought together in »Die Züchtung der landwirtschaftlichen Kultur- 
pflanzen», where Fruwirtu (1919) mentions the occurrence of blue, 
light blue, rose (probably identical with my bluish red) and white 
flower colours. It is also stated here that dark seed colour and co- | 
loured flowers are correlated, as well as white seed colour and white 
flowers. FruwirtH hybridized blue and white types and found that 
blue flower colour and dark coloured, marbled seeds were dominant 
over white flower colour and white seeds. In F, the hybrids segrega- 
ted in the ratio 3:1. 
According to Harz (in Landwirtschaftliche Samenkunde) there is 
also found a variety named leucospermum with coloured flowers and 
white seeds. The existence of this variety has been doubted by Ka- 
Janus. According to him, the cause of proposing this variety must 
be due to the occurrence of white seeds in samples of blue flowered 
varieties. The fact that white flowers become coloured at a later 
_ stage (see pag. 302) may also account for the fact, especially since the 
intensity of this colour varies greatly in response to varying environ- 
mental conditions. No type with white seeds combined with coloured 
flowers in earlier stages has been found in my material. 
The most complete investigation hitherto made of the inheri- 
tance of the flower colour in Lupinus angustifolius has been ‘published 
by VESTERGAARD (1919). He also finds that the blue and white colours 
segregate in the ratio 3:1. He also crossed red and white types and 
succeeded in obtaining a synthesis of the blue colour in F, and Fs, 
which segregated regularly in 9 blue, 3 red and 4 white. The red 
type in VEsrerGaARD's cultures is probably also identical with my 
bluish red. 
Hereditas II. 20 
