a. 
as the calyx, of a rich scarlet colour; the tube straight and projecting 
from the calyx; the limb spreading, divided into five nearly equal, 
bluntly emarginate lobes, arranged in two lips. Capsuxe oblong, the 
dissepiment adhering to the valves and splitting, together with the 
placente, from the apex to below the middle. 
Poputar aND GeEoGrRapHicaL Notice. This species scarcely 
differs from the old Mimulus glutinosus, excepting in the colour 
of the flower; and, perhaps, in its larger stature and more pointed 
leaves; but in both these respects the Mimulus glutinosus appears to 
vary very much. The two species, together with two or three others, 
like them, natives of North California, have been considered by M. 
Nuttall a distinct genus, to which he has given the name of Diplacus, 
derived from the only character which separates it from Mimulus, the 
splitting of the dissepiment into two portions at the maturity of the 
capsule. Jt may be observed, however, that in several Mimuli (as for 
instance Mimulus cardinalis) there is a partial splitting, or an inter- 
mediate state between the deeply split dissepiment of Nuttall’s Diplaci 
and the entire one of other Mimuli, that in almost all cases the valves 
adhere to the dissepiment, and when they appear to be free, it is only 
because they are so thin and fragile, that they are, as it were, torn 
from it. This character has not, therefore, that constancy which is 
necessary to constitute a good artificial genus, and it is admitted by 
all, that in habit and general appearance the Diplaci do not form a 
good natural genus as distinguished from Mimulus, which it appears 
much more convenient to retain in its original integrity. 
The genus thus extended has a wide geographical range, being 
an inhabitant of North America, Chili, Australia, East India, and the 
South-eastern portion of Africa. No species are ever found in North 
Africa, Europe, or North-western Asia. G. B. 
InTRODUCTION; WHERE GRowN; CuLTuReE. This plant was in- 
troduced in 1837, by the Messrs. Low of Clapton, who received it from 
_ the nursery of Mr. Buist of Philadelphia. Our drawing was made in 
_ garden of the Birmingham Horticultural Society, in July, from a 
plant then three feet high. It requires the protection of a greenhouse 
or well-protected frame, during winter; but in summer, will not only 
grow freely in the open ground, but will flower there till prevented by 
frosty weather. Cuttings strike root sie in a gentle heat. 
Deri VATION OF THE MES. 
Mimvxus, from the Greek pupw Mimo, a hart Punicevs, scarlet, 
SyNONYME. 
Diptacus punicevs. Nuttall: in the Botanical Magazine, t. 3655. 
