the Natural Family of Plants called Scrophularine. 351 
extensive orders and genera into sections cannot, I think, be 
doubted. 
In concluding this part of my subject, I beg leave to offer a 
few remarks on the use of the terms contrary and parallel as 
applied to the position of the dissepiment of bilocular fruits; as 
without such explanation, that part of the following description 
which relates to the position of the dissepiment would be liable 
to be misunderstood. I use the term dissepimentum contrarium 
to express such dissepiments as have their flat side facing the 
stem, or, more properly speaking, contrary to the axis of the 
flower, without regard to the compression of the valves ; and dis- 
sepimentum parallelum, to denote such as are perpendicular to the 
.axis of the flower, having their edge opposed to the stem. The 
distinction between the parallel and contrary dissepiment having 
been hitherto so vague and uncertain, the adoption of the pre- 
ceding mode of applying the terms will be found very advan- 
tageous. In order to point out more clearly the inconvenience, 
if not absurdity, of the manner in which these terms have been 
hitherto applied, I need only mention, that in the greater part of 
Scrophularine the dissepiment is said to be parallel, and contrary 
in Pedicularis and some other genera, merely because the valves 
happen to be more compressed : for the fact is, its position is 
precisely similar. In all bilocular fruits having really a parallel 
septum, the dehiscence takes place at the margin of the valves. 
LOPHOSPERMU M. 
Syst. Linn. Didynamia Angiospermia. Prope Maurandiam. 
Orv. Nat. Scrophularinæ. Brown. Sect. 2. Antheris bilobis 
muticis, seminibus testá coriaceo-spongiosd corrugatá v. reti- 
culatim scrobiculatá preditis.  Antirrhineæ. Nob.* 
* I have found it necessary to modify in some degree the character of the section, - 
from observing the differences assumed by the seeds of certain species of Linaria. 
VOL. XV. 2 z CHAR. 
