The elements of botany for beginners and for schools . 225. Fio. 224. Flower of a Crassula. 225. Diagram or ground-plan of same. Fig. 226. Flower of a Trillium; its parts in threes. FiQ. 227. Diagram of flower of Trillium. In this, as in all such diagrams of cross-section of blossoms, the parts of the outer circle represent the calyx ; the uext, co-rolla ; within, stamens (here in two circles of three each, and the cross-section isthrough the anthers); in the centre, section of three ovaries joined into a compoundone of three cells. SECTION 8.] PLAN OP THE FLOWER. 83 the petals stand over the
The elements of botany for beginners and for schools . 225. Fio. 224. Flower of a Crassula. 225. Diagram or ground-plan of same. Fig. 226. Flower of a Trillium; its parts in threes. FiQ. 227. Diagram of flower of Trillium. In this, as in all such diagrams of cross-section of blossoms, the parts of the outer circle represent the calyx ; the uext, co-rolla ; within, stamens (here in two circles of three each, and the cross-section isthrough the anthers); in the centre, section of three ovaries joined into a compoundone of three cells. SECTION 8.] PLAN OP THE FLOWER. 83 the petals stand over the intervals between the sepals; the stamens, whenof the same number, stand over the intervals between the petals; or whentwice as many, as in the Trillium, the outer set alternates with the petals,and the inner set, alternating with the other, of course stands before thepeials; and the pistils alternate with these. This is just as it should be outhe theory that the circles of the blossom answer to whorls of leaves, whichalternate in this way. While in such
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectbotany, bookyear1887
