560 
APPENDIX. [Botany of Terra Australis. 
2d!y. In Goodenoviae the greater part of the tube of the corolla is 
formed by the cohesion of five lacinioe, the distinct inflected margins of 
which are in most cases visible nearly to its base ; these lacini* are in some 
cases unconnected, as in Diaspasis, and more remarkably still in Cyphia, 
whichis actually pentapetalous. I have observed no such structure in Lobelia. 
3dly. At the period of bursting of the Anther a; the stigma in Lobelia 
is almost completely evolved, and capable of receiving impregnation from 
the pollen of the same flower ; the function therefore of its surrounding 
pencil, is similar to that of the hairs which are almost equally obvious in 
many Composite, especially Cinarocephaloe. On the contrary in Gooden- 
oviee the stigma at the same period, is hardly visible, and is certainly not 
then capable of receiving impregnation from the pollen of its proper flower ; 
it is therefore either impregnated by the anther* of different flowers, or in 
some cases at a more advanced stage by the pollen of its own anther*, 
which is received and detained in the Indusium. To these arguments for 
the exclusion of Lobelia I may add that in the greater part of Goodenoviae 
with dehiscent fruit, the dissepiment is parallel to the valves of the cap- 
sule, in which respect they differ equally from Lobelia and the valvular- 
fruited Campanulaceoe ; and lastly, that many species of Lobelia as well as 
Campanulacese contain a milky juice of which there is no instance in 
Goodenoviae. If therefore in Lobelia the pencil surrounding the stigma 
and the irregularity of the corolla, which, however, in some species is 
hardly perceptible, be considered as characters sufficient to separate this 
extensive genus from Cam pane lace* , it may form a separate order admit- 
ting, perhaps, of subdivision into several distinct genera. 
I have formerly observed* that in two genera ofGoodenovise, namely, 
Euthales and Velleia, the base of the corolla coheres with the ovarium 
while the calyx remains entirely distinct. This structure I had stated as 
being peculiar to these genera, and as in some degree invalidating one of 
Jussieu’s arguments for considering the floral envelope of Monocobyledones 
as calyx rather than corolla. The fact, however, seems not to be admitted 
by Richard, who in the dissertation already quoted ■f describes what has 
hitherto been called calyx in Velleia as bractem: a view of the structure 
which in those species of that genus having triphyllous calyx, may appear 
* Prodr- fl. nov. holt. 580. 
f Annates du nms. 18. p. 17- 
