
‘VULGARIS L. AND IN PH. MULTIFLORUS WILLD. 113 
light-coloured seedcoats these crosses are soon detected and may 
be removed. The grey colour, characteristic for the race ,,Rotjes” 
covers all other colours in a high degree, so that only a very 
sharp selection may discover the differences of types. 
The cross Citroen 2 X Rotjes ¢ (greyish brown as in plate II 
Fig. 23) was cultivated in only one family; besides two sponta- 
neous hybrids found in a culture of the lemoncoloured race, gave 
posterities of a wholly analogical composition. The Fy-individuals 
were of a reddish brown; the Fo-generations divided into 8 
phaenotypically different groups: I dark redbrown, Ia redbrown 
(like F,), If dark greybrown, [la greybrown (all with a brown 
navelring), III greybrown with uncoloured or blue navelring, IV 
yellowbron as the brownseeded race ,,Bruine”, V Wagenaar-type 
(yellow with brown navelring) and VI lemoncoloured Citroen-type 
(without navelring). The types I, Il and III are figured in pl. I. 
figs. 3,4 and 7; the remaining three agree entirely with fig. 25, 18 
and 22 of pl. II. Above those, still two plants with reddish brown 
seedcoat like that of the F; were selected from a culture of the 
Rotjes-race; they gave progenies segregating in the same way, so 
that as their father a plant of the Citroen-race may be indicated 
with a very high probability. 
The frequency of the various types in Fy may be found in the 
following table: 





| | | | | 
Type ‘Ta Ib Wa Ib II IV V IV) Total 
988. Artif hybr. EM ENE Gods a B Rv 
994. Spont. hybr. from Citroen 2 7 1 AE IE Da. 2043 30 
10050 A 2 Be TE Ni a Ses 29 
1006. , SER; Rotjes 3 3 — — 3 Bora rat 15 
101520 a 2 x 16/12) PAGE TA) PER E32 
| o | 
(17/29! 4 |10 23 |12 | 5 |12| 112 
SC EREN | eek 






If the groups Ia with Ib and Ila with IIb are taken together, 
the segregation shows immediately to be a triheterozygotic: part 
of the individuals in the F, possess the factor for grey (probably 
the L-factor, as indicated in my previous paper) while the remain- 
Genetica IV. 8 
