. The classification of flowering plants. Plants. 564 FLOWERING PLANTS The number and development of the carpels shew great variability even in one and the same genus. In Leycesteria and some species of Sambucus there are five carpels (rarely more in Leycesteria) which are equally developed; four in Symphoricarpus, three in most of the remaining genera and two in Diervilla. The number of ovules is also variable; Sam-. FiG. 261. Viburnum villosum. A. Flowering shoot, f nat. size. B. Flower, in longitudinal section to shew the single functional chamber of the carpel with pendulous ovule, x 8. C.
. The classification of flowering plants. Plants. 564 FLOWERING PLANTS The number and development of the carpels shew great variability even in one and the same genus. In Leycesteria and some species of Sambucus there are five carpels (rarely more in Leycesteria) which are equally developed; four in Symphoricarpus, three in most of the remaining genera and two in Diervilla. The number of ovules is also variable; Sam-. FiG. 261. Viburnum villosum. A. Flowering shoot, f nat. size. B. Flower, in longitudinal section to shew the single functional chamber of the carpel with pendulous ovule, x 8. C. Drupe, x D, E. Drupe cut lengthwise and across, shewing the single seed. D x E x 2. bucus, Viburnum and Triosteum have one in each chamber, while in Leycesteria they are numerous. The carpels are often unequally developed; thus in Viburnum two of the three original carpels become suppressed and the fruit is unilocular and one-seeded. In Symphoricarpus two chambers are one- ovuled and fertile, two contain several ovules and are 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
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectplants, bookyear1904
