424 Tricotylous Races. 
either been bought or obtained by exchange, in order to 
compare them with my own strains. In the autumn I 
saved the seed of a number of separate specimens and 
sowed it in the hope of finding a tricotylous intermediate 
race amongst them, inasmuch as my own races and vari- 
eties offered no pro3pect of producing them, as has al- 
ready been mentioned for a special case, that of Oeno- 
t/iera rubrinervis (p. 383). This hope was fulfilled by 
a single specimen, all the remaining lots of seed giving the 
usual very low values of from to 4%. This specimen 
was a plant which was noticed by some striking distinc- 
tive marks. It was taller and slenderer in growth than 
all the other species, more than 2 meters high, with a long 
raceme interrupted in places by the failure of some of the 
lower buds. Its flowers were of the size and structure 
of those of 0. biennis and, like this form, were self- 
fertilized within the buds before their opening. Its pro- 
geny have kept true to this type through a series of gen- 
erations. 
This stray plant produced from its seeds, in a lot 
of 300 seedlings, 7% tricotyls, and in another estimation, 
amongst 2430 seedlings, 8% tricotyls, of which 143 were 
tricotyls in the restricted sense, 59 were hemi-tricotyls, 
and 4 tetracotyls. Whether the parent itself had three 
cotyledons, I do not of course know. 
Of this crop the tricotylous seedlings only, and of 
these only the strongest, were planted out on the 2d of 
April, 1896. In the middle of July, some few clays be- 
fore they flowered, the whole bed was covered with a 
great cage of fine cloth. The cloth was removed at the 
beginning of September and at the same time all the 
open flowers and buds were removed from the plants. 
Seeds were saved separately from 54 individuals and 300 
