IN FLOWERING PLANTS. 175 
developed plumula, a remarkable fact, and one particularly 
indicated by some Aroidez, which contrary to the habit of 
' Ovarium compound, adherent — 
Stam. Definite, ces Perig. 
Stam. Indefinite, 
é Stam  Definite or indefinite, 
3 Ovarium compound, free— 
= efin met coos Perig. 1 
3 Stam. Indefini Perig. 0> l 
* Sta Definite c or indefinite, Perig. 0 
3 Ovarium simple, free— 
Stam. De -— A PE Perig. d] 
Stam. Ind ee cy 0-4 

Stam. soles or indefinite, duse 
Perigynous stamens are much oftener definite than indefinite. Of Polypetalous 
perigynism, 47 are eun 13 prae and 5 definite or indefinite. But in Ape- 



talous orders th for 22 have definite, 3 indefinite, and two vari- 
ous. Of vus 5 only have hypogynous stamens, or in the proportion of nearly 
in 7. } 
I; pog) t presume, necessarily total 
and ovarium.* They may become perigynous as I have shewn in Mibi 
Definite stamens ien in 47 Polypetale, indefini te in 25, and us in 4, 
so that the poren of — is increased in the perigynous, tiq one in 3, in 
these, et mor 
Mim = afd a — instance of this tendency to indefiniteness in hypo- 
gynous zone men 
Again the Mer tendency to definition in stamens that ipere either to the calyx 


or e is pem = by ue Sexe in a æ, of 57 orders with defi- 
nite n , it ma zhe laid down as a law 
that Mie to the corolla has greater power i in p i ity, than adhesion 
to the calyx. A few of mne. vary with hypogynous and viser id oin such 
nd the stance of Plumbaginew, otherwise Styracea and 
Belvisiacez are the only two in which definite or indefinite stamens occur. 
ee itr is very rare in monopetalous orders, occurring only in pecia and 
runoniacez, and Mimosez, and in the monopetalous Plumbaginez, although to 
x latter fact, ZEgialitis is an exception. 
If we look to Monocotyledons, we shall find the same laws in force. 
Thus out of 6 polypetalous orders, 4 have hypogynous stamens, a character 
perhaps totally unknown among the monopetalous orders, and of the above, 3 have 
both definite and repa whereas in the monopetalous, Pandanee is the only 
instance of — 
. Bro 

ed that tl f albumen may be considered as the 
ural Medidor of the primary division of Monocotyledons. We might be led to 
expect this from the knowledge of the functions of this organ, which is a test of in- 
complete evolution on the part of the embryo. Indeed with the more or less com- 
t$ size fluctuate; those "- thin albumen may be looked 
upon as presenting d stages of development. But no one T remark- 
ed that the prevalence of albumen in monopetalous Dicotyledonous orders, is 
nearly in the same send Seven Monocoty. orders want albumen ; e. den propor- 
tion in favour of albumen is ábout 44 to 1. The proportion in favour of the same 
among monopet. Dicot. is very nearly 4 to I. 


