184 REPORT OF THE CONFERENCE ON GENETICS. 
partaking decidedly of the form of D. lutea, the much greater size and 
the narrowing towards the base showed the influence of the other parent 
The flowers were rather more nearly intermediate than the leaves. They 
were pale rose-purple, over creamy-yellow, and, although a little smaller, 
conformed closely to those described by Henslow. They were quite 
destitute of good pollen, The fruit swelled considerably, but contained 
no good seed. The plants were perennial. 
Digitalis lutea x D, purpurea alba. 
Much interest attaches to hybrids between D. lutea and D. purpurea 
alba, the white foxglove, In the first series of hybrids secured, 
Fic. 32.—FAscIATED INFLORESCENCE OF DiGITALIS LUTEA x D. PURPUREA ALBA. 
D. purpurea alba was the pollen-parent. Compared with the series 
where the purple foxglove was used, it was very suggestive to note 
that a much more successful set of fruit was secured. The seed was of 
better quality, and the seedlings were stronger from the outset. The 
foliage was a few shades lighter than in the purple foxglove hybrids, 
and the inflorescences were very considerably taller. 
