276 Wisconsin Academy of Sciences, Arts, and Letters. 
fortia psilostachya, and T. rufo-sericea, many of which are coy- 
red with vines of Cissampelos Pareira, and Elaterium cor datum. 
There are also many ferns among* which are: Adiantum Henslo- 
vianum, Asplenium cristatum, Nephrolepis biserrata, Polypo¬ 
dium pectinatum, P. squamatum, and Trachypteris pinnata. 
Many herbaceous plants also occur in this region. 
There are open areas in the vegetation on the south side of 
the island between 1,000 and 1,300 ft. elevation, which are cov¬ 
ered with grasses and herbaceous plants. These areas extend in 
a more or less direct way up the side of the mountain, and are 
bordered by bushes which are heavily covered with a growth of 
brown Hepatic, probably a species of Frullania. These areas 
are succeeded above by a heavy growth of bushes and small trees. 
Above 1,650 ft. elevation, extending to the top of the moun¬ 
tain, there is a heavy growth of ferns which are often five feet or 
more in height. Among the ferns there are low stunted bushes 
of Zanthoxylum Fagara heavily covered with epiphytes. 
The dry region*' on this island extends to about 450 ft. on the 
southeast side, and to about 700 ft. elevation on the southwest 
side. Judging from the appearance of the vegetation as seen 
from a distance, this region must extend to an elevation of about 
1,000 ft. on the north side. The transition region extends to an 
elevation of about 1,000 ft. on the south and southeast sides, and 
probably to within a short distance of the top of the north side. 
There is apparently but a narrow strip near the top, on this side 
of the mountain, that is covered with dark green vegetation, such 
as is usually found in the moist region of these islands. All of 
the country above an elevation of 1,000 ft. is covered with the 
plants usually found in the moist regions. 
Albemarle Island. 
Albemarle lies towards the west side of the archipelago and is 
the largest island of the group. It is about seventy-five miles 
long, and forty-five miles broad at its widest part, which is to¬ 
wards the southern end of the island. The island has the gen¬ 
eral shape of the letter L the long limb of which extends in a 
general northwest and southeast direction. There are five large 
* For a discussion of the botanical regions on these islands see: Stewart, 
A Botanical Survey of the Galapagos Islands. Proceedings of the California 
Academy of Sciences, fourth series, vol. I, pp. 206-211. 1911. 
