288 Prof Gray's Address before the 
oS 
of which China is a part, and Japan, as we shall see, the por- 
tion most interesting to us. There is only one more species of 
Torreya, and that is a companion of the redwoods in California. 
It is the tree locally known under the name of the California 
nutmeg. In this case the three are near brethren, species of 
the same genus, known nowhere else than in these three 
habitats. 
, because they are of genera whic 
common all round the northern hemisphere. Leaving these 
out of view, the noticeable point is that the vegetation of Cali- 3 
fornia is most strikingly unlike that of the Atlantic Umite@ = 
States. They possess some plants, and some peculiarly Ame? 
ican plants, in common,—enough to show, as I imagine, that the 
difficulty was not in the getting from the one district to ™ 
