l. Soc. Bot.
Fr.,' ix, 81, 'Des anomalies aberrantes et regularisantes.'
Reichenbach fil. 'De pollinis orchid. genesi ac structura,'
1852, _Oncidium_. Clos, 'Mem. Acad. Toulouse,' vi, 1862,
_Salvia_. Caspary, 'Verhandl. Phys. OEkon. Gesell.
Koenigsberg,' 1860, i, 59, _Columnea_. Bureau, 'Bull. Soc. Bot.
Fr.,' 1861, vol. viii, p. 710, _Streptocarpus_. Darwin,
'Variation of Animals and Plants,' ii, pp. 59 and 396. Godron,
'Ex. Bull. Bot. Soc. Fr.,' xiv, p. 165, 'Rev. Bibl.,'
_Wistaria_. Marchand, 'Adansonia,' iv, p. 172, _Lonicera_.
Baillon, 'Adansonia,' v, p. 177, 'Sur la regularite transitoire
de quelques fleurs irreg.,' shows that during the development
of some flowers which begin and end by being irregular, there
is an intermediate state when all the parts are regular. Helye,
'Revue Horticole,' Sept., 1868, p. 327. In this last paper,
published as this sheet is going through the press, the author
states that he has raised from seed three generations of plants
of _Antirrhinum_ with regular spur-less flowers. The original
wild plant was only partially peloric, but all the flowers
produced on its descendants were regular.

FOOTNOTES:

[221] "On the existence of two forms of Peloria," by M. T. Masters.
'Nat. Hist. Review,' April, 1863.

[222] Baillon, 'Adansonia,' iv. p. 149.

[223] Similar cases are figured in 'Hort. Eystettens. Ic. Pl. Vern.'
fol. 4, f. 1, 2. _Viola martia_ multiplici flore.

[224] 'Linnaea,' 1837, p. 128.

[225] M. Bureau, 'Bull. Soc. Bot. Fr.,' ix, p. 91, describes two genera
of _Bignoniaceae_ in which the flowers are _normally_ regular and six
parted.

[226] See 'Trans. Linn. Soc.,' vol. x. p. 227.

[227] 'Ann. Sc. Nat.,' ser. 4, 1859. tom. xi, p. 264, tab. 3.

[228] 'El. Ter. Veg.,' p. 342.

[229] Marchand, 'Adansonia,' vol. iv, p. 127.

[230] 'Bull. Acad. Belg.,' xvii. p. 17. "Fuchsia," p. 169.

PART II.

PLEIOMORPHY.[231]

Most irregular flowers owe their irregularity to an unequal development
of some of their organs as compared with that of others. When such
flowers become exceptionally regular they do so either because
development does not keep pace with growth, and a regular flower is thus
the result of an arrest of the former process (regular peloria), or
because the comparatively excessive development, which usually occurs in
a few parts is, in exceptional cases manifeste