. Elementary botany [microform]. Botany; Botanique. 136 DICOTYLEDONS. Sepals (^) five, imbricate. Petals (/) five, separate. Stamens 5 + 5, with their filaments slightly combined at their bases. ^ The stamens {pa) forming the outer whorl are opposite the petals (obdiplostemonous) and are shorter than those {sa) op- posite the sepals; anthers, in- trorse. Nectaries {n) five lumps opposite the sepals, and lying p between them and the five inner stamens. Carpels five, syncar- pous, superior. Ovary (ov) five- lobed, five-chambered: each chamber contains two ovules attached to the axile placenta. S
. Elementary botany [microform]. Botany; Botanique. 136 DICOTYLEDONS. Sepals (^) five, imbricate. Petals (/) five, separate. Stamens 5 + 5, with their filaments slightly combined at their bases. ^ The stamens {pa) forming the outer whorl are opposite the petals (obdiplostemonous) and are shorter than those {sa) op- posite the sepals; anthers, in- trorse. Nectaries {n) five lumps opposite the sepals, and lying p between them and the five inner stamens. Carpels five, syncar- pous, superior. Ovary (ov) five- lobed, five-chambered: each chamber contains two ovules attached to the axile placenta. Style single, but dividing above r â « T., , ,râ i"to five branches with stis- P .g. . diagram of Herb ^^^^sg). It IS important tOnOtC that the ovary-chambers and five style-branches are opposite to the petals. Thus the five carpels are opposite to the petals instead of being opposite to the sepals: this is an additional peculiarity of many obdiplostemonous flowers. Fruit (fig. 167).âThe main single part of the style elongates, and becomes a strong " beak," Only one ovule in each chamber forms a seed. When the fruit is ripe, as it dries, the five carpels separate, one by one or simultaneously, from below upwards in such a manner that the five seed - containing chambers (cocci) are carried up by elastically curling strips of the " beak," and are thrown off. The fruit is a peculiar schizocarp, because the carpels do not open whilst still attached to the mother-plant. In some of the British species of Geranium the ^'s->67-âI'ruitofHeVbRobm,. 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 Groom, Percy, 1865-1931; Penhallow, D. P. (David Pearce), 1854-1910. A manual of the more common herbaceous plants of Quebec and Ontario; Gray, Asa, 1810-1888. Elements of bo
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