Text-book of botany, morphological and physiological . Fig. 3-!4. — Longitudinal section of tlic flower ofCalothaninus ; / the ovary, s calyx, / petals, ^ style,st branched stamens. Fig. 333.—Part of a male flower of Rtciiiits co)innuniscut through lengthways ; ff the basal portions of thecoinpoundly-branched stamens ; a the anthers. the branches all bearing anthers. In the Hypericineae, three or five large broadprotuberances (Fig. 336, II-V, a) spring from the periphery of the floral axis afterthe formation of the corolla, on each of which smaller roundish knobs are produced. Fig. 336.—Develo


Text-book of botany, morphological and physiological . Fig. 3-!4. — Longitudinal section of tlic flower ofCalothaninus ; / the ovary, s calyx, / petals, ^ style,st branched stamens. Fig. 333.—Part of a male flower of Rtciiiits co)innuniscut through lengthways ; ff the basal portions of thecoinpoundly-branched stamens ; a the anthers. the branches all bearing anthers. In the Hypericineae, three or five large broadprotuberances (Fig. 336, II-V, a) spring from the periphery of the floral axis afterthe formation of the corolla, on each of which smaller roundish knobs are produced. Fig. 336.—Development of the flower oi Hypericii7n perforatinn ; /young flower-bud in the axil of the bract B, with itstwo bracteoles 6 i, s the sepals, / first indication of the petals ; //middle part of a somewhat older bud, /rudiment of theovary, a, a, a the three stamens with the rudiments of their branches arising as protuberances ; ///a flower-bud of nearlythe same age as in //, but seen from the side, s a sepal, a a the the ovar>; /y and l^ flower-buds in furtherstages of development, the letters indicating the same as in /, //, and ///,- i, 2, 3 ovary in various stages of development cutthrough horizontallj-. in basipetal succession from its apex; these latter become the filaments, each ofwhich eventually bears an anther, and are connected at their base with the primordialprotuberance of which they are branches. A horizontal section through the flower- ANGIOSPERMS. All bud before tlie opening of the flower shows, especially in Hypericum calydnu?n, thenumerous fi


Size: 1619px × 1543px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: ., bookcentury1800, bookdecade1870, booksubjectbotany, bookyear1875