Hooker
assures me that to his knowledge it has been repeatedly introduced, and
that at Kew the same plant both of the Euryale and of the Victoria
produce several flowers at the same time.
Nymphaea (Nymphaeaceae).--Some species, as I am informed by Professor
Caspary, are quite self-fertile when insects are excluded.
Adonis aestivalis (Ranunculaceae).--Produces, according to Professor H.
Hoffmann ('Speciesfrage' page 11), plenty of seeds when protected from
insects.
Ranunculus acris (Ranunculaceae).--Produces plenty of seeds under a net.
Papaver somniferum (Papaveraceae).--Thirty capsules from uncovered
plants yielded 15.6 grains weight of seed, and thirty capsules from
covered-up plants, growing in the same bed, yielded 16.5 grains weight;
so that the latter plants were more productive than the uncovered.
Professor H. Hoffmann ('Speciesfrage' 1875 page 53) also found this
species self-fertile when protected from insects.
Papaver vagum.--Produced late in the summer plenty of seeds, which
germinated well.
Papaver argemonoides.--According to Hildebrand ('Jahrbuch fur w. Bot.'
B.7 page 466), spontaneously self-fertilised flowers are by no means
sterile.
Glaucium luteum (Papaveraceae).--According to Hildebrand ('Jahrbuch fur
w. Bot.' B.7 page 466), spontaneously self-fertilised flowers are by no
means sterile.
Argemone ochroleuca (Papaveraceae).--According to Hildebrand ('Jahrbuch
fur w.
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