. The classification of flowering plants. Plants. RUTACEAE 287 proterandry of the flowers. Thus in Ruta graveolens (Rue) the stamens rise successively to the centre of the flower, shed their pollen, wither and fall back again. After all the stamens have bent back the stigma ripens, but H. Miiller observed that before it withers the stamens again rise up, and if, through lack of insect-visitors, they still retain a. Fig. 140. Citrus Aurantium (Orange). A. Shoot with leaves and flowers, x f. B. Flower cut lengthwise, with petals cut, x f. C. Ovary cut across, much enlarged. D. Fruit cut across,
. The classification of flowering plants. Plants. RUTACEAE 287 proterandry of the flowers. Thus in Ruta graveolens (Rue) the stamens rise successively to the centre of the flower, shed their pollen, wither and fall back again. After all the stamens have bent back the stigma ripens, but H. Miiller observed that before it withers the stamens again rise up, and if, through lack of insect-visitors, they still retain a. Fig. 140. Citrus Aurantium (Orange). A. Shoot with leaves and flowers, x f. B. Flower cut lengthwise, with petals cut, x f. C. Ovary cut across, much enlarged. D. Fruit cut across, x |, E. Seed, x f. F. Seed cut lengthwise, shewing folded cotyledons. (From Flor. Jam.) stock of pollen, some of it is shed upon the stigma, thus effecting seK-poUination. The flowers are visited by many flies and bees. The fruit varies considerably, but the form is more or less related to the degree of union of the carpels. Where the latter are only partially united in the flower, as in Dicfamnus, the fruits generally become isolated and dehisce along the ventral suture, the dry papery endocarp becoming at 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 Rendle, A. B. (Alfred Barton), 1865-1938. Cambridge, University press
Size: 1581px × 1581px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1900, booksubjectplants, bookyear1904
