14 
pyrum, have been well circumscribed by Steven in his elaborate mono- 
graph of Pedicularis (Mem. Soc. Imp, Nat. Hist. Mosq. vol. 6.p. 1.) 
I have only thought it better to keep the Linnaean name of Rhinan- 
thus to the Crista Galli, instead of to the other species to which 
Tournefort gave the name of Elephas. Under Bartsia I propose to 
include Steven’s Trixago as well as his Bartsia. The genus would 
thus comprehend the Euphrasia latifolia and its allied species, as 
also nearly all the South American plants which have been described 
sometimes as Euphrasia, sometimes as Bartsia, and one of them, by 
Dr. Hooker, as a Lamourouxia. 
The new genus of Siphonostegia is described below. 
The peculiarities of Tozzia, with which I should close the Enume- ^ 
ration, have been fully described by Auguste de St. Hilaire, (in Mem, 
Mus. Hist. Nat. Par. 14. 94.) where he satisfactorily shows its true 
place near the Rhinantheae, notwithstanding the anomaly of a mo- 
nospermous indehiscent fruit, which arises from the abortion of one 
cell and three ovules of a bilocular d-ovTilated ovarium. 
In concluding these short observations, I have only to add that, 
having been requested by Professor de Candolle, to undertake the 
elaboration of this order for his Prodromus, I should feel particularly 
obliged by the communication of any specimens which may tend to 
elucidate the many genera and species which yet remain doubtful. 
