FLOWER AND SEED COLOUR IN LUPINUS 305 

med scar at the hilum; the whole surface of the seed is generally 
found to have a touch of the same marbling colour. Cp. the colora- 
tion of the white flowers when old. 
I have only found white seeds in lines with white flowers. 
As to the methods employed it should be stated that isolation by 
means of parchment bags has been used in all cases (with the ex- 
ception of Nos. 228—236—20). Consequently, the families are all 
progenies from isolated mother plants. It seems, however, as were 
self-fertilization the exclusive method of fertilization in L. angusti- 
folius. The families just mentioned (94 plants in all) showed no case 
of vicinism when allowed to seed whithout bagging, and the same 
has been found in other families with recessive flower colours not 
mentioned in the tables, viz. 3 tinged blue, 2 tinged red and 1 pure 
red families, 105 individuals in all. 
; No case of vicinism has been found in these 199 cases in spite 
of the most favourable opportunities of hybridization. Further in- 
vestigations on this point are in progress. The same has been pointed 
out by VEsTERGAARD, Who did not use any isolation in his experiments. 
The following crosses have been made between the types discussed | 
in the above. 
TABLE OF CROSSES. 
Blue flower colour 
Earth-brown, marbled 
seeds 
Cross 1: White flower colour 2 
» seed colour 
» 2: Violet flower colour 
Rust-brown, bl 
ust-brown, marbled seeds marbled. seeds 
I Earth-brown, non- 
Blue flower colour 
‚x‘ Seed colour as female 
parent 
> 3: Bluish red flower colour 
| Blue flower colour 
Earth-brown, marbled seeds | 
Blue flower colour 
X + Seed colour as female 
parent 
» 4: Tinged blue flower colour 
Earth-brown, marbled seeds 
| Tinged blue flower colour 
X 4 Earth-brown, marbled 
| seeds 
» 5: White flower colour 
> seed colour 
» 6: Violet flower colour White flower colour 
Rust-br. marbled seed colour x » seed colour 
2 
