Note 74 — Chapter XVII · ON THE GOOD EFFECTS OF CROSSING, AND ON THE EVIL EFFECTS OF CLOSE INTERBREEDING.
Reading edition
‘Zweite Fortsetzung,’ s. 10; ‘Dritte Forts.,’ s. 40. Mr. Scott likewise fertilised fifty-four flowers of Verbascum phœniceum, including two varieties, with their own pollen, and not a single capsule was produced. Many of the pollen-grains emitted their tubes, but only a few of them penetrated the stigmas; some slight effect however was produced, as many of the ovaries became somewhat developed: ‘Journal Asiatic Soc. Bengal,’ 1867, p. 150.