Text-book of botany, morphological and physiological . Fig. 361.—Longitudina section of the flower oiRheionjiticiitiatiim: s leaf of the outer, / of the inner perianth-whorl: aaa three of the nine anthers, yovary, 7t stig-ma,kk nucleus of the ovary, dr glandular tissue at the baseof the filaments forming the nectaries. Vie -^60.—Anaga/lis aj-venszs: A longitudinal section ofa young flower-bud, / sepals, c corolla, a anthers ; A carpel;-S apex of the floral axis ; R the gynseceum further developed,the stigma n being now formed, and the ovules on the centralplacental; Cthe gyna?ceum ready for fe
Text-book of botany, morphological and physiological . Fig. 361.—Longitudina section of the flower oiRheionjiticiitiatiim: s leaf of the outer, / of the inner perianth-whorl: aaa three of the nine anthers, yovary, 7t stig-ma,kk nucleus of the ovary, dr glandular tissue at the baseof the filaments forming the nectaries. Vie -^60.—Anaga/lis aj-venszs: A longitudinal section ofa young flower-bud, / sepals, c corolla, a anthers ; A carpel;-S apex of the floral axis ; R the gynseceum further developed,the stigma n being now formed, and the ovules on the centralplacental; Cthe gyna?ceum ready for fertilisation,/ pollen-grains on the stigma «, i:r style, 5 central placenta, SKovules ; D unripe fruit, the placenta .S has become fleshyand swollen so as to fill up the spaces between the ovules. Besides the number of the carpels which have coalesced to form the ovary, itis a question of interest whether in any particular case the ovules have been pro-duced laterally on the floral axis or as its terminal structure. In the cases ofPiperaceae, Pol
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Keywords: ., bookcentury1800, bookdecade1870, booksubjectbotany, bookyear1875
