. Botany for high schools. Botany. 146 GROWTH AND WORK OF PLANTS the stamen sometimes remains attached to the base of the petal when that is removed from the calyx tube. Four of the stamens are set opposite the petals and four are alternate with them as shown in the photograph of a dissected flower in figs. 106,107. The. Fig. 107. Flower of evening primrose with petals removed to show the four spreading lobes of the stigma, and anthers beneath them. Petal at right, showing two stamens attached. filaments are strongly curved at the base, all in the same general direction, with the concavity tow
. Botany for high schools. Botany. 146 GROWTH AND WORK OF PLANTS the stamen sometimes remains attached to the base of the petal when that is removed from the calyx tube. Four of the stamens are set opposite the petals and four are alternate with them as shown in the photograph of a dissected flower in figs. 106,107. The. Fig. 107. Flower of evening primrose with petals removed to show the four spreading lobes of the stigma, and anthers beneath them. Petal at right, showing two stamens attached. filaments are strongly curved at the base, all in the same general direction, with the concavity toward the axis of the spike. The anthers are versatile, , each anther is attached by one face near the middle to the point of the filament, upon w^hich it swings loosely. The filament is attached to the outer face of the anther, so that the anther faces inward toward the axis of the flower, and is said to be introrse^ or incumbent. The anther consists of two pollen sacs (locules) which open by a long sHt on the inner faces. This takes place before the flower opens and the pollen is depos- ited in great masses on the outer surfaces of the four lobes of the. 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 Atkinson, George Francis, 1854-1918. New York, H. Holt and Company
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbotany, bookyear1910
