Rouprecxia aristata of the above synonymy was pro- 
posed as a species many years ago by Dr. Solander, from 
samples still in the Banksian Herbarium; but proving the 
same with the Linnean B. triloba, of which a prototype 
sample is also found in that Herbarium, it had remained 
dormant in manuscript until carelessly revived in Mr. 
Pursh’s Flora of North America. 
Neither does R. subtomentosa of Pursh appear to rest 
upon solid foundation, being derived from one of the two 
varieties of Michaux’s triloba, to which Mr. Pursh has at- 
tributed the additional difference of a calyx of the full 
length of the ray, to distinguish it from the other which 
constitutes his subtomentosa, where the calyx is in the pro- 
portion of only half the length of the ray. But a reference 
to the sample of Mr. Pursh’s ¢riloba in the Lambertian 
Herbarium, convinces us that this plant has not a calyx the 
full length of tne ray, but only half the length, as in subto- 
mentosa, and that Mr. Pursh has confounded the nearest 
floral leaflets with those of the true calyx. 
Triloba is native of Carolina and the Illinois country, 
and is said to have been cultivated by Mr. Jacob Bobart ° 
before 1699; but is still far from common in our collections. 
The drawing was made from a plant that came out of Mr. 
Lambert’s garden at Boyton; where it had been raised from 
imported seed and cultivated in the common ground. 
The three-lobed leaves are all situated at the lower part 
of the stem, and, in the garden plant at least, are very few 
comparatively with the undivided ones. The leaflets of the 
calyx were 8, in all the flowers we saw, and the florets of 
the ray likewise 8. The palew or bractes that separate the 
florets in the receptacle are smooth, crimson at the top, and 
awn-pointed, with two black-red linear slightly elevated 
vertical calli on each side a little within the margin. 
It is marked in Hortus Kewensis for a biennial plant. 
