The microscope : and its application to vegetable anatomy and physiology / by Dr. Hermann Schacht ; edited by Frederick Currey, M. A.

Hermann Schacht

Date:: 1855

Credit: The microscope : and its application to vegetable anatomy and physiology / by Dr. Hermann Schacht ; edited by Frederick Currey, M. A. Source: Wellcome Collection.

186/230 (page 162)

$tuni completely inwards; the uj)})er ]^arts of the i)istil on the other hand do not become curved in one mass with the ovai’ies; in fact, the stigma does not become ciu-ved at all; the style, therefore, does not tei’uiinate as in other plants at the apex, but underneath the stigma. The longitudinal sections, figs. 73 and 74, exhibit at (a) the place where the style ends; at a later 2>eriod there is formed there a conducting tissue con- sisting of long papillae. Fig. 75 rc2:»resents a longitudinal sec- tion through the upper part of the pistil of a flower almost developed; («) is the place under the stigma where the pollen - tubes enter the canal of the style; (y) is the se- creting portion of the stigma, and will be referred to hert*- after. The figure only shows half the })istil. In figs. 73 and 74 the stigmas of the two pistils are not yet grown together; a little later they become imited, as shown in fig. 7 6, which represents a longitiidinal section with the calyx and petals re- moved, and showing only one anther. Transverse sections through the ovaries made at this pei-iod at different heights, jis, for instance, at the points a' y c' and d' in fig. 7 G, exliibit the circumstances which have been heretofore stated with respect to the developement of the rudiments of each indi- vidual ovary. Fig. 77 {afh'c'd') represents four transverse sec- tions through the two ovaries of a young flower, at different heights, such heights being shown in fig. 7 6 by the same letters of reference; d' is the lowest part of the two young pistils, -f- + is one of the vascular bundles at the bottom of the$