. Handbook of flower pollination : based upon Hermann Mu?ller's work 'The fertilisation of flowers by insects' . Fertilization of plants. PAPAVERACEAE 73 Kirchner, 'Flora v. Sluttgart,' p. 281; Knuth, 'Bl. u. Insekt. a. d. nordfr. Ins.,' !'• 23.)—The dull purple flowers are coloured blackish-red at the tip. The flower mechanism agrees with that of Corydalis cava. "Owing to the smallness of the flowers, the lateness of the flowering time, and the concealed habitat, insect-visits are few. Warnstorf (Verb. bot. Ver., Berlin, xxxviii, 1896) believes that cross- pollination by bees or humble-b
. Handbook of flower pollination : based upon Hermann Mu?ller's work 'The fertilisation of flowers by insects' . Fertilization of plants. PAPAVERACEAE 73 Kirchner, 'Flora v. Sluttgart,' p. 281; Knuth, 'Bl. u. Insekt. a. d. nordfr. Ins.,' !'• 23.)—The dull purple flowers are coloured blackish-red at the tip. The flower mechanism agrees with that of Corydalis cava. "Owing to the smallness of the flowers, the lateness of the flowering time, and the concealed habitat, insect-visits are few. Warnstorf (Verb. bot. Ver., Berlin, xxxviii, 1896) believes that cross- pollination by bees or humble-bees is barely possible, as forcible removal of the upper petal from the two Lateral ones—which are united at their tip, and enclose the sexual organs—very easily breaks off the style at its base, for it is not elastic and yielding as in Corydalis. According to the same authority (op. cit., xxxvi; 1895), the pollen-grains are whitish, spheroidal, and smooth, with large projecting germinating processes, and 56-62 /x, in diameter. As the flowers, in spite of the scarcity of insect-visits, almost all set fruits even in continuously rainy weather, which. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Knuth, Paul, 1854-1899; Knuth, Paul, 1854-1899; Mu?ller, Hermann, 1829-1883; Ainsworth Davis, J. R. (James Richard), 1861-1934. Oxford : Clarendon Press
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