. The elements of structural botany [microform] : with special reference to the study of Canadian plants, to which is added a selection of examination papers. Plant anatomy; Botany; Botanique; Botanique. 34 ELEMENTS OF STRUCTURAL BOTANY. ate petals. The stamcus are numerous and are inserted on the calyx. The structure of the pistil (Figs. 47, 48), however, is somewhat different. On making a cross-section through tlie young apple, five cells containing the unripe seeds arc seen radiating from the centre. These seed-vessels are imbedded in a fleshy mass, the outer limit of wliich is marked by a
. The elements of structural botany [microform] : with special reference to the study of Canadian plants, to which is added a selection of examination papers. Plant anatomy; Botany; Botanique; Botanique. 34 ELEMENTS OF STRUCTURAL BOTANY. ate petals. The stamcus are numerous and are inserted on the calyx. The structure of the pistil (Figs. 47, 48), however, is somewhat different. On making a cross-section through tlie young apple, five cells containing the unripe seeds arc seen radiating from the centre. These seed-vessels are imbedded in a fleshy mass, the outer limit of wliich is marked by a circle of green dots, and outside these dots is the flesh which constitutes the eatable part of the apple. The inner mass, which encloses the core, belongs to the re- ceptacle, whilst the outer edible por- tion is the enlarged calyx. At the end opposite the stem will be found the persistent calyx-teeth. We have in this flower, therefore, a si/ncarpous pistil of five carpels, instead of an apocarpous one, as in Sweet-Brier. Fig, 48. ORGAN. NO. COHESION. ADHESION. REMARKS. Calyx. Scixds. 5 Gamosepaloiis Superior. Corolla. Petals. 5 PolypetalouB. Perigynons, • Gtanieus. a Polyandrous. Porigyiious. Pistil. 9 5 Syucarpous. Inferior. Fruit consists ciiii fly ot p. fichijy cnUirt;-ii-j niciit of tao 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 Spotton, H. B. (Henry Byron), 1844-1933. Toronto; Winnipeg : W. J. Gage
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Keywords: ., bookcentury1800, bookdecade1870, booksubjectbotany, booksubjectpl
