. Botany of the living plant. Botany. Fig. 432. Heracleum sphondylium. I. whole flower seen from above. II. the same seen from the side. III. gynoecium. IV. fruit. V. ditto in section. VI. mature fruit with mericarps separate. VII. fruit in transverse section. VIII. floral diagram. grouped together, and all at the same level, the aggregate inflorescence becomes a conspicuous feature. Each flower is borne upon a slender hairy stalk, which widens out just below the flower itself into a flattened green body. This is the inferior ovary, and the flower is epigynous (Fig. 432). Care should be taken
. Botany of the living plant. Botany. Fig. 432. Heracleum sphondylium. I. whole flower seen from above. II. the same seen from the side. III. gynoecium. IV. fruit. V. ditto in section. VI. mature fruit with mericarps separate. VII. fruit in transverse section. VIII. floral diagram. grouped together, and all at the same level, the aggregate inflorescence becomes a conspicuous feature. Each flower is borne upon a slender hairy stalk, which widens out just below the flower itself into a flattened green body. This is the inferior ovary, and the flower is epigynous (Fig. 432). Care should be taken to select perfect flowers for observation, as the parts fall away early. The flower consists of : Calyx, sepals 5, superior, present as minute teeth visible between the petals. The odd sepal is posterior. Corolla, petals 5, polypetalous, free, superior. Each is notched at the free edge. In the marginal flowers the petals are unequal, the outermost being the largest. Androecium, stamens 5, free, epigynous, alternating with the petals ; bent inward in bud, but straightening when mature. Gynoecium, carpels 2, syncarpous ; stigmas 2, styles widening downwards into two yellowish green nectaries. Ovary inferior, bilocular, with one pendu- lous ovule in each 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
Size: 1524px × 1639px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1910, booksubjectbotany, bookyear1919
