Proliferous flowers of Orchids also occasionally present great complexity in the arrangement of their parts. An instance of this kind was described by myself from specimens furnished by Dr. Moore, of Glasnevin, in the 'Journal of the Linnean Society,' vol. ix, p. 349, tabs. x, xi, and from which the following summary is extracted: [Illustration: FIG. 69.--Proliferous Orchis. Diagram showing the arrangement of the several organs in the seven outer circles of the flower. Each whorl is numbered, and the position of the axillary buds shown by the small circles.] The primary flowers were composed of five distinct whorls, and of at least two others less perfectly developed. These primary flowers did not give rise to median formations, but they produced secondary buds in the axils of the segments of the perianth. These latter buds were themselves the subject of tertiary prolification of both kinds, median and axillary. The tertiary median growths, like the primary flower, did not develop median buds, but only lateral ones--quaternary axillary prolification. The accompanying diagrams are intended to show the plan of arrangement in these flowers. Fig. 69 shows the disposition of parts in the primary flower and the situation of the axillary buds. Fig. 70 shows the primary flower without any central prolongation, but giving off axillary buds, two of which are shown in the diagram, 2, 2; these are, each of them, the subject of both median, 3, 3, and axillary prolification, 4', 4'. [Illustration: FIG. 70.--Diagram to explain the construction of the double-flowered _Orchis_. 1. The primary flower, with no median bud, the position of which, had it been present, is shown by the dotted line. 2. Two axillary buds proceeding from 1, and themselves giving origin to 3, 3. Median buds, and 3', 3', axillary buds. 4' 4'. Axillary buds, proceeding from 3. No median bud is produced from 3; its situation, had it been present, is indicated by the dotted line.] In _Narcissus major_ a similar combination of both forms of prolification exists, as described by Morren.[144] On the general subject of Prolification in flowers, in addition to the authorities already cited, the reader may refer to the following among many others: