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CYRTANDRACEJE. 147 
thacem. Remarks on the various organs, and appendages 
of the axis, the obliquity and inequality of the leaves, 
analogous to the same in Acanthacez. Affinities. 
I believe Dr. Brown does not separate these plants from 
Gesneracee or Gesneriez. The differences assigned by 
Lindley in his Introd. 2nd edition, are not defensible, since in 
my Cyananthus the ovary has a tendency to become inferior, 
neither is the absence of albumen constant. 
From Scrophularinez they may (when in flower) be dis- 
tinguished at once? by the constant presence of 5 stamens 
in one form or another, whereas the 5th in Indian Scrophu- 
larinez is as constantly absent. 1 have before observed that 
the bilocularity of the fruit of this last order is not constant. 
ls there no,difference in the :estivation of the corolla. 
On the whole, after Gesneriez, they approach nearest to 
Acanthacez especially in habit and inflorescence. "The gyrate 
orm is very remarkable and was first pointed out by Brown 
in his Aikinia; every degree of irregularity occurs in the 
corolla from ringent to subregularity, the tendency towards 
the latter form is however rare. The calyx affords but few 
characters, my Cyananthus however is at once known by its 
petaloid pentangular valvate calyx. 
The stamina are worthy of much attention, Cheilosandra 
having the anthers opening in a valvular manner, the valve 
Ing compound. 
The hypogynous disk is less developed than in Scrophu- 
larinez, neither has it a tendency towards assuming the form 
of an additional series of stamina, which it has in the order 
referred to. 
The ovarium is constantly unilocular or of bilocular form, 
the placentze do not cohere, it is therefore only bilocular by 
approximation, not cohesion of parts. Cyananthus is remark- 
able for its fungous placentz. : 
The stigma affords generic characters the general form, is 
Perhaps bilamellar which may be determined by the vascular 
fascicles of the style. 
