448 Ill. SEGREGATES AND 
perforatum ; whereas its own flowers are nearer to those of true 
quadrangulum (tetrapterum) in size, though still somewhat larger, 
and also deeper in their colour. Under which of the two names, 
dubium or quadrangulum, had the beticum passed before its 
distinctness was observed by Mr. Archer Briggs? Some among 
the many botanists who had sought plants in Cornwall and South 
Devon must surely have noticed it there ? 
Through some unexplained error it is enumerated in Seubert’s 
‘ Flora Azorica’ under the name of perforatum. In Lowe's ‘ Flora 
of Madeira’ it passes for the Linnean quadrangulum. TEqually 
with dubiwm it was made one of the varieties of quadrangulum 
in the ‘ Prodromus’ of De Candolle; that is, assuming it to be 
certainly the undulatum of Schousboe. Not conceiving it to be a 
variety distinguished from the Linnean quadranyulum in the 
‘Prodromus’ only by the three words “ foliis margine undulatis,” 
I described it in the ‘ London Journal of Botany’ under name of 
HZ, decipiens, a name suggested by the uncertainties about it. 
Subsequently, it was found to have been named and described 
independently by Botanists in different countries; and in con- 
sequence it had a different name in each country. 
The purpose of this story is, to shew that the name quadrangu- 
lum may now unfortunately intend any one of the three species ; 
it having been specially applied to each of them singly, and also to 
all of them unitedly. Hence a necessity now for using some other 
name for each one apart from the other two, or else for giving 
some sort of explanation, as to which of the three plants is really 
intended by the use of a name made inconveniently common to all 
of them. 
5. Valeriana officinalis, Linn.—This plant affords an illus- 
tration of more simple character than the preceding examples. 
Originally treated as one species in Ray’s ‘Synopsis,’ it was 
divided into two, or a second species added, by Dillenius. The 
original was recorded under the appropriate names of “ Valeriana 
sylvestris major” and ‘sylvestris magna aquatica.” The added 
or parted species was described as “ Valeriana sylvestris major 
