horls, 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:

Linnaeus, 'Prolepsis,' Secs. vi et vii. Goethe, 'Versuch.
Metamorph.,' cap. xv and xvi Secs. 103-106. Moquin-Tandon,' El.
Ter. Veg.,' p. 362, &c. Engelmann, 'De Antholys.,' Secs. 52-62,
&c. Cramer, 'Bildungsabweichungen,' &c. _Orchidaceae_,
_Umbelliferae_, _Compositae_, _Leguminosae_, _Primulaceae_,
_Ranunculaceae_. Fleischer, 'Missbild. Cultur Gewachs.'
Schlechtendal, 'Linnaea,' xv, p. 408, _Rosa_. 'Bot. Zeit.' vol.
xx, 1862, p. 382, _Cyclamen_. 'Bot. Zeit.,' vol. xx, p. 301,
_Asphodelus_; et _Lilium_. Seringe, 'Bull. Bot.,' i, t. xi, f.
7, 8, _Arabis_, _Diplotaxis_. Clos, 'Mem. Acad. Toulouse,' 5th
ser., 1862, _Papaver_. Wigand, 'Flora,' 1856, p. 716,
_Hypochaeris_; et 'Bot. Untersuch.,' p. 19. Buchenau,'
Flora,' 1857, p. 295, _Reseda_. Roeper, 'Bot.