. Botany of the living plant. Botany. 510 BOTANY OF THE LIVING PLANT The pollination is not highly speciaHsed ; the symmetry is radial ; the attractions are colour, and honey on the carpels ; there is slight protandry, and the stamens mature in succession, so that the supply of pollen is prolonged. There is a probability of intercrossing, but self-pollination is possible. The fruit is a group of follicles, which open by their ventral sutures, and gap- ing widely upwards allow their seeds to escape (Fig. 415, A). (16) The Buttercup {Ranunculus acris, L., or other species) is more specialised, h
. Botany of the living plant. Botany. 510 BOTANY OF THE LIVING PLANT The pollination is not highly speciaHsed ; the symmetry is radial ; the attractions are colour, and honey on the carpels ; there is slight protandry, and the stamens mature in succession, so that the supply of pollen is prolonged. There is a probability of intercrossing, but self-pollination is possible. The fruit is a group of follicles, which open by their ventral sutures, and gap- ing widely upwards allow their seeds to escape (Fig. 415, A). (16) The Buttercup {Ranunculus acris, L., or other species) is more specialised, having both cal^x and corolla ; but the flower is constructed on a similar plan ; as follows : (Fig. 416.) Calyx, sepals 5, polysepalous inferior, imbricate in bud, the outermost being obliquely anterior. Corolla, petals 5, polypetalous, alternating with the sepals, inferior yellow, with a honey-pouch on the upper face of each, near the base (Fig. 416, 2). Androecium, stamens indefinite, free, hypogynous ; the outermost maturing Fig. 415. A, Follicles of Aconite. (After Figuier.). B, Achene or nut of Buttercup. (After Figuier.). 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 Bower, F. O. (Frederick Orpen), 1855-1948. London, Macmillan
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbotany, bookyear1919
