effects of intercrossing.
uniform colour of self-fertilised.
seeds.
highly self-fertile.
prepotency of other pollen.
-- roseus.
Miner, Mr., red clover never sucked by hive-bees in the United States.
Mirabilis, dwarfed plants raised by using too few pollen-grains.
number of grains necessary for fertilisation.
Mitchell, Dr., on first cousins inter-marrying.
Monochaetum ensiferum.
Moore, Mr., on Cinerarias.
Muller, Fritz, on Posoqueria fragrans.
experiments on hybrid Abutilons and Bignonias.
large number of Orchidaceous genera sterile in their native home, also
Bignonia and Tabernaemontana echinata.
sterility of Eschscholtzia californica.
Abutilon darwinii.
experiments in self-fertilisation.
self-sterile plants.
incapacity of pollen-tubes to penetrate the stigma.
cross-fertilisation by means of birds.
imperfectly developed male and female Termites.
food-bodies in Cecropia.
Muller, Hermann, fertilisation of flowers by insects.
on Digitalis purpurea.
Calceolaria.
Linaria vulgaris.
Verbascum nigrum.
the common cabbage.
Papaver dubium.
Viola tricolor.
structure of Delphinium consolida.
of Lupinus lutea.
flowers of Pisum sativum.
on Sarothamnus scoparius not secreting nectar.
Apium petroselinum.
Borago officinalis.
red clover visited by hive-bees in Germany.
insects rarely visiting Fumaria officinalis.
comparison of lowland and alpine species.
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