168 Genetic Beliavionr of the Hybrid Primula Kewensis 



B. Aberrant cases possibly due to segregation in Kewensis. 



In 1912, three plants of Kewensis were given us by the Botanic 

 Gardens, Cambridge, and were numbered f|, |^ and \^. They were 

 used in the following crosses : — 



(1) vert. X Kewensis ;-j Kewensis f4 selfed 



I r 



maternal hybrids of which a plant y'j x Kewensis y^ a plant 



I 

 One plant oa\y , floribunda. 



(2) Jlor. X vert. 1911 



I 

 maternal hybrids of which a plant |^ x Kewensis |-| 



I 

 maternal hybrids of which a plant ^ x ^[reciprocal cross below] 



I 

 1 plant only, verlicillatu. 



(3) Kewensis ^^ x iV 



I 

 1 plant only, verticillnta. 



Compare reciprocal above. 



(4) floribunda var. is. x '2.c /leircHs/s tat Messrs Veitch) 



I 

 maternal hybrids 

 Kewensis *-j x ^ a plant 



I 



1 plant only, floribunda yellow. 



Two other aberrant cases unconnected with the above occurred. 



(5) Kewensis x flor. var. is. (at Messrs Veiteh) 



maternal hybrids 

 flor. var. is. x -|4 a plant 



2 plants only of which 

 l=floribunda yellow, 

 \=florihunda var. isahrllimi. 



(6) vert. X Keu-ensis 



maternal hybrids 

 Kewensis x a plant 



I 

 1 plant only, aea,r floribunda. 



(7) A plant of Keu-ensis was tested for parthenogenesis. Very poor seed was obtained, 

 only one germinated, giving a plant of floribunda. 



