f a second
stamen present, probably one of the inner series fig. 192
(_a_^2).[439] The same observer also records the presence of a
second anther between the lobes of the normal one. This can
hardly be referred to either of the typical stamens, but would
seem to be a perverted development of the rostellum.[440]

Roeper is stated by Cramer[441] to have seen a specimen of
_Orchis morio_ with two stamens.

In a flower of _Habenaria chlorantha_, described by the late
Professor Henslow,[442] the outer three stamens are suppressed,
while two of the inner group are present, as happens normally
in _Cypripedium_.

A flower of _Cattleya violacea_ afforded a similar
illustration; but in this case only one of the inner stamens
was developed, and this in the form of a small petal, partly
adherent to the column.

In _Dendrobium normale_, Falconer, not only is the perianth
regular, but the column is triandrous,[443] the three stamens
(according to the diagram of its structure given by Lindley)
pertaining to the outer row.

In a specimen of _Dendrobium hoemoglossum_ kindly forwarded
from Ceylon by Mr. Thwaites there were three stamens present,
of which one posterior belonged to the outer series A 1, and
two lateral to the inner _a_ 1, _a_ 2, fig. 192.

M. His observed, several years in succession, some flowers of a
species of _Ophrys_ with three sepals, no lateral petals, one
lip, and three perfect stamens. In this case probably the two
supernumerary stamens were petals which had assumed an
anther-like character.

Wydler describes a flower of _Ophrys aranifera_ in which one
outer and two inner stamens were present.[444] I have myself
met with three such flowers in the same species. The stamens
present were A 1, _a_ 1, _a_ 2.

Dr. J. E. Gray exhibited at the Botanical Society of London, in
August, 1843, a specimen of _Ophrys apifera_ with a triandrous
column, the supernumerary anthers belonging, apparently, to the
inner whorl.

In his 'Catalogue of the Plants of South Kent,' p. 56, tab. iv,
f. 16, the Rev. G. E. Smith describes and figures a flower of
_O. aranifera_ with a triandrous column, seemingly of the same
kind as that spoken of by Dr. Gray.

Mr. Moggridge met with a triandrous flower in the same species,
and