In Gesneria the several parts of the flower are arranged on nearly the same plan as in Digitalis, and most or all of the species are dichogamous. (3/11. Dr. Ogle ‘Popular Science Review’ January 1870 page 51.) Plants were raised from seed sent me by Fritz Muller from South Brazil. Seven flowers were crossed with pollen from a distinct plant, and produced seven capsules containing by weight 3.01 grains of seeds. Seven flowers on the same plants were fertilised with their own pollen, and their seven capsules contained exactly the same weight of seeds. Germinating seeds were planted on opposite sides of four pots, and when fully grown measured to the tips of their leaves.
TABLE 3/26. Gesneria pendulina.
Heights of Plants measured in inches.
Column 1: Number (Name) of Pot.
Column 2: Crossed Plants.
Column 3: Self-fertilised Plants.
Pot 1 : 42 2/8 : 39. Pot 1 : 24 4/8 : 27 3/8.
Pot 2 : 33 : 30 6/8. Pot 2 : 27 : 19 2/8.
Pot 3 : 33 4/8 : 31 7/8. Pot 3 : 29 4/8 : 28 6/8.
Pot 4 : 30 6/8 : 29 6/8. Pot 4 : 36 : 26 3/8.