696 Mr. Brown on the Organs and Mode of 
the lateral and generally rudimentary stamina bear to the other 
parts of the flower. 
Into this subject I had in part entered in my Observa- 
tions on Apostasia, published by Dr. Wallich in his ‘ Plante 
Asiatice Rariores*," and had then considered it probable that 
in all cases these Stamina, in whatever state of development 
they were found, belonged to a different series from the middle 
and usually fertile stamen; in other words, were placed oppo- 
site to the two lateral divisions of the inner series of the perian- 
thium. In 1810, however, when I first advanced my hypothesis 
of the true nature of these processes of the column, I supposed, 
though the opinion was not then expressed, that they formed 
the complement of the outer series of stamina; a view which 
has been since very generally adopted, especially by Dr. Von 
Martius, who has given it in a. stenographic formula, and by 
Mr. Lindley, who has exhibited the relative position of parts in 
this family in a diagramt. A careful examination of the struc- 
ture of the column in various tribes of the order, chiefly by 
means of transverse sections, has fully confirmed the opinion I 
entertained when treating of Apostasia; and more particularly 
established the fact in Cypripedium, in miith these interp] 
stamina are perfectly developed. - | 
On the hypothesis of rudimentary stamina I may remark, that 
it presented itself to me some time before the publication of the 
Prodromus Flore Nove Hollandiz; and my belief is, that 
until the appearance of that work this view had not been taken 
by any other observer in England. Mr. Bauer at least, in a 
recent conversation on the subject, readily admitted, with his 
usual candour, that although acquainted with a case of acci- 
dental development, the general view had not occurred to him 
until stated by me. 
* Vol. i. p. 74. ~ +} Antroduct, to Nat. Syst. p. 964. 
In 
