Nemophila insignis—crossed and self-fertilised flowers yielded seeds as (by weight): 69.
Borago officinalis—crossed and self-fertilised flowers yielded seeds as: 60.
Nolana prostrata—crossed and self-fertilised flowers yielded seeds as: 100.
Petunia violacea—crossed and self-fertilised flowers yielded seeds as (by weight): 67.
Nicotiana tabacum—crossed and self-fertilised flowers yielded seeds as (by weight): 150.
Cyclamen persicum—crossed and self-fertilised flowers yielded seeds as: 38.
Anagallis collina—crossed and self-fertilised flowers yielded seeds as: 96.
Canna warscewiczi—crossed and self-fertilised flowers (on three generations of crossed and self-fertilised plants taken all together) yielded seeds as: 85.
Table 9/G gives the relative fertility of flowers on crossed plants again cross-fertilised, and of flowers on self-fertilised plants again self-fertilised, either in the first or in a later generation. Here two causes combine to diminish the fertility of the self-fertilised flowers; namely, the lesser efficacy of pollen from the same flower, and the innate lessened fertility of plants derived from self-fertilised seeds, which as we have seen in the previous Table 9/D is strongly marked. The fertility was determined in the same manner as in Table 9/F, that is, by the average number of seeds per capsule; and the same remarks as before, with respect to the different proportion of flowers which set capsules when they are cross-fertilised and self-fertilised, are here likewise applicable.
TABLE 9/G.—RELATIVE FERTILITY OF FLOWERS ON CROSSED AND SELF-FERTILISED PLANTS OF THE FIRST OR SOME SUCCEEDING GENERATION; THE FORMER BEING AGAIN FERTILISED WITH POLLEN FROM A DISTINCT PLANT, AND THE LATTER AGAIN WITH THEIR OWN POLLEN. FERTILITY JUDGED OF BY THE AVERAGE NUMBER OF SEEDS PER CAPSULE. FERTILITY OF CROSSED FLOWERS TAKEN AS 100.