. Notes on the life history of British flowering plants. Botany; Plant ecology. Fig. 211. Fig. 212. Fig. 211.—Lamium alimn. White Dead-nettle. Fig. 212.—Flower magnified. Fia. 213.—Section of flower magnified, a, anthers ; w, lower lip of corolla ; st^ stigmas. Fig. 213. ca, calyx ; co, corolla ; but also to prevent the anthers {a a) and pistil {st) from yielding too easily to the pressure of the insect, and thus to ensure that it should press the pollen, which it has brought from other flowers, against the pistil. The stamens do not form a ring round the pistil, as is so usual. On the contrar
. Notes on the life history of British flowering plants. Botany; Plant ecology. Fig. 211. Fig. 212. Fig. 211.—Lamium alimn. White Dead-nettle. Fig. 212.—Flower magnified. Fia. 213.—Section of flower magnified, a, anthers ; w, lower lip of corolla ; st^ stigmas. Fig. 213. ca, calyx ; co, corolla ; but also to prevent the anthers {a a) and pistil {st) from yielding too easily to the pressure of the insect, and thus to ensure that it should press the pollen, which it has brought from other flowers, against the pistil. The stamens do not form a ring round the pistil, as is so usual. On the contrary, one stamen is absent or rudi- mentary, while the other four lie along the outer arch of the flower, on each side of the pistil. They are not of equal length, but one pair is shorter than the other ; the inner pair in some species, the outer pair in others, being the longest. Now, why is this ? Probably, as 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 Lubbock, John, Sir, 1834-1913. London, New York, Macmillan and Co. , Ltd.
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