plants fertilising one another at a considerable distance.
Lobelia fulgens.
sterility of Verbascum nigrum.
number of pollen-grains to fertilise Geum urbanum.
experiments with pollen.
Gentry, Mr., perforation of corolla.
Geraniaceae.
Geranium phaeum.
Gerardia pedicularia.
Germination, period of, and relative weight of seeds from crossed and
self-fertilised flowers.
Gesneria pendulina.
measurements.
seeds.
Gesneriaceae.
Geum urbanum, number of pollen-grains for fertilisation.
Glaucium luteum.
Godron, intercrossing of carrot.
Primula grandiflora affected by pollen of Primula officinalis.
tulips.
Gould, humming-birds frequenting Impatiens.
Graminaceae.
Grant, Mr., bees of different hives visiting different kinds of flowers.
Gray, Asa, sexual relations of trees in United States.
on sexual reproduction.
Hallet, Major, on selection of grains of cereals.
Hassall, Mr., number of pollen-grains in Paeony and Dandelion.
weight of pollen produced by one plant of Bulrush.
Heartsease.
Hedychium.
Hedysarum onobrychis.
Heights, relative, of crossed and self-fertilised plants (Table 7/A).
Heights, weights, and fertility, summary.
Henschel's experiments with pollen.
Henslow, Reverend G., cross-fertilisation in Sarothamnus scoparius.
Herbert on cross-fertilisation.
pollen brought from distant plants.
spontaneous crossing of rhododendrons.
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