Archive image from page 456 of Cyclopedia of American horticulture, comprising. Cyclopedia of American horticulture, comprising suggestions for cultivation of horticultural plants, descriptions of the species of fruits, vegetables, flowers, and ornamental plants sold in the United States and Canada, together with geographical and biographical sketches cyclopediaofam03bail Year: 1900 111 are hardy in the northern states, ulture. The pear-like species may stocks, and the apple-like species on .iect of dispute, although most botanists now agree considering it to be a hollowtorus (receptacle) in
Archive image from page 456 of Cyclopedia of American horticulture, comprising. Cyclopedia of American horticulture, comprising suggestions for cultivation of horticultural plants, descriptions of the species of fruits, vegetables, flowers, and ornamental plants sold in the United States and Canada, together with geographical and biographical sketches cyclopediaofam03bail Year: 1900 111 are hardy in the northern states, ulture. The pear-like species may stocks, and the apple-like species on .iect of dispute, although most botanists now agree considering it to be a hollowtorus (receptacle) in which tlie ovary is imbedded. Fig. 2019 illustrates the theo- retical structure. The ovary is at 6, wholly inclosed in Thee the fleshy torus a. Most of the edible part of the Apple or Pear, therefore, is considered to be torus, whereas the core is ovary. This ovary is of five carpels or cells, as shown in the cross-section. Fig. 2nL'n. It was formerly heUl that the edible part is largciv calvx-lubc', but vari- ous morphological considerations iiave to regard it as stem rather tlian reasons is the fact that Apples soiu- i i . r > . , ' which is commonly I'lii II. . i, There are the si Um. . .. ..i opinion as to the generic limits of this group of plants. What is regarded by Bentham & Hooker as one genus is re- garded by others as 10 or 12 genera (see, for exaniple, E. Kochne, 'Die Gattung iler Poraaceen.' Wissensch. Beil. zum Program des Palk-Realgynmasiums,Ber- lin, 1890). In the present work, some of these species (the quinces) are set off as Cydonia, the medlar as , and the motmtain ashes, cliokeberries and their kin as Sorbtis. This rcstri.'ts Pyrus to the pear-like and apple-like 0. Section of a pome (apple). Showing the interior or ovary part and the or torus part. region. Of this particular region. Bossier (Flora Orientalis) reduces the species to eight, P. communis, P. cordafa, P. amygdaliformis, P. eloiagrifolia, P. sa
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