; 5d PREFACE. 
situation of the raphe is however in Boraginez Cy- 
nanchum and Myosotes apparently reversed, the fora- 
men being turned inwards, and pointing to the base 
of the style. But this instead of being an exception 
is a remarkably strong proofin favour of the univer- 
sality of the law directing the situation of the raphe 
since in Cynanchum in which the ovaria subsequently 
become straight, the raphe is at length next the axis 
and almost, in all those in which the ovaria remain 
inverted; there is a similar tendency shewn by the 
radicle becoming superior, apex of the lobes of the style 
stigmatic, in Gomphostemma the raphe is next the 
axis. 
Boraginee.—In an Assamese genus nearly allied 
to Cynoglossum, the radicle is inferior. In another it 
is towards the situation of the foramen, which in all is 
inferior and on the inner side of the funicle, it under- 
goes no change. In all, the foramen communicates 
directly with this stigmatic tissue which forms the 
bulk of the style and is expanded at its base. 
The umbilicus of Myosotis owes its origin to the 
channel of this communication becoming osseous and 
not being filled up. In the genus referred to above 
this is not the case and the umbilicus is a growth of 
the ovulum totally unconnected with fecundation. 
Burrampooter, March 31st, 1836. 
Heliotropie.—Heliotropium peruvianum ovula. 
Apparently reduced. ds in PAPE: to one subs- 
tance. Qe 
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