56 
AMERICAN JOURNAL OF BOTANY 
[Vol. io, 
the boggy places along the trail were occasional patches of Sphagnum, and 
other conspicuous mosses were species of Polytrichum and Dawsonia. 
Hepaticae abounded on the rocks and on the trunks of trees, and quite 
an extensive collection was made, which has not yet been worked up. As 
usual, the foliaceous species were the more common, but thallose types 
were abundant, especially in the shady fern gullies. 
The most interesting find was Podomitrium phyllanthus , an Australasian 
species seen for the first time. This was very common, and a fine lot of 
material was secured. Very much like it in appearance were some of the 
species of Pallavicinia and Symphyogyna, which were also abundant. The 
Pallavicinias included species both of Eupallavicinia and Mittenia. Aneura, 
as is usual in such localities, was represented by a number of species, in¬ 
cluding one very large one which closely resembled A. maxima of the 
East Indies. 
These gullies with their perpetual shade and moisture, and the corre¬ 
sponding luxuriant growth of forest trees and moisture-loving ferns and 
liverworts, and the barren sandy moorland on the table land a thousand 
feet or so above them, with its predominantly xerophytic vegetation, afford 
one of the most remarkable examples that has come to my notice of the 
differences in vegetation within a limited area due to the amount of moisure. 
Stanford University 
