The drawing was made in the greenhouse at the nursery — 
of Messrs. Colvill, in the King’s Road, Chelsea; where it 
flowers freely and abundantly. 
Amena, like uniflora, speciosa (GLANDULIFOLIA umbel- 
lata. Wendl. coll. 1. 37. t. 10.), and jragrans, belongs to 
a2 group, which Willdenow has detached from Diosma in 
his ‘ Enumeratio,” and distinguished from the other three 
parcels into which he distributes that genus, by an ap- 
pendage connected by a flexile stalk with the summit of 
the receptacle of the cells of the fertile anthers, and which 
while the anther remains entire is upright, but when that 
bursts bends down close along the back of the anther, 
and proves an unfailing sign that the pollen has been shed. 
The same circumstances belong to the species that Will- 
denow leaves for the true group, under the title Diosma, 
but these appendages being there minute and inconspi- 
cuous, seem to have escaped his eye. In ApENaNDRa the 
filaments are more intimately connected with the recepta- 
cular crown than in Diosma. 
Amena may be known from all others of its section, 
with which we are acquainted, by sessile flowers orbicular 
imbricate petals and oval foliage. The fiower is smaller 
than either in uniflora or speciosa, and about the size of that 
of fragrans (Curtis's magax. 1519) which is however long- 
peduncled and red throughout. © 
Mr. Brown-observes, that Rura and Pecanum may be 
annexed to Diosmec, but that neither genus being calcu- 
lated to afford a clear idea of the order, from the general 
structure of which they deviate in some important points, 
he has derived the ordinal title from Diosma, as the most ex- 
tensive and best-known genus of the division, and proposes 
to detach the first section of Jussieu’s Rutacee as the 
foundation of another order, to be called Zygophyllec. 
Diosma is a South African genus. 
In our view the Barosma, AcaTHosMA, and ADENANDRA, 
serve better for sections of Diosma than separate genera. 
This is however entirely matter of taste. 
