1874. ] 
PSEUDOTSUGA DAVIDIANA. 
125 
so different from all we know, that, not being able to place it in any established 
genus, we had created that of Pseudo-Ahies for it, because of the similarity of 
several of its characters with those of Ahies^ from which, however, it is clearly 
separated by certain others. We had arrived at this conclusion, when we found 
that M. Bertrand, a learned young botanist, had made a particular study of this 
plant, which showed him that it belonged to the genus Pseudotsuga^ *nd proved 
a new species, to which he proposed to give the name of Davidiana :— 
PSEUDOTSUGA DAVIDIANA, cone : nat. Bize. 
P. Davidiana, C.E.B., in Herh. Mus. Paris (sine descriptione ).—A largo tree, whose figure, 
says the Abb4 David, resembles that of an Araucaria when seen from afar; the branches 
spread horizontally, and ramify laterally like those of Abies. The leaves are subdistichous 
by reversement, ]-^-2 in. long, and about |in. broad, thick, coriaceous, strongly keeled 
below, broadly canaliculate above, with edges folded, and constituting to the lower part, on 
each side of the keel, a broad rut. The cones have a rather long peduncle and are pendent, 
5-6 in. long, and about 2^ in. in diameter when open; its scales persistent, not gibbous, wanting 
the apohpysis, slightly recurved at the tip; the seeds remain in the cone even after the opening 
