338 Wisconsin Academy of Sciences, Arts, and Letters. 
small and heavily covered with lichens. Low thickets of Opun- 
tia Helleri occur along the tops of the cliffs and for some distance 
back from them, and Cereus nesiticus is to be found in several iso¬ 
lated spots on the island. The most common bushes are those 
of Cordia lutea, Croton Scouleri, Lantana peduncular is, and 
Waltheria reticulata forma Andersonii. A few grasses, sedges, 
and other herbaceous plants have been reported from this island, 
but as our party visited it during the dry season in September, 
none of these were found. 
Wenman Island. 
With the exception of Culpepper, Wenman is the most north¬ 
ern island of the group. It is nothing more than an immense 
rock, about a mile in diameter, which lies seventy six miles north¬ 
west of Abingdon Island. The main island is surrounded by 
perpendicular cliffs on all sides but the north where they are 
somewhat broken down so that a landing can be effected and the 
upper part reached. In many places the cliffs are several hun¬ 
dred feet high, and some of them reach practically to the highest 
part which probably has an elevation of about 800 ft. There is 
a smaller island, to the north of the main one, and separated 
from it by a narrow channel. This, however, was not visited by 
our party. The channel between the islands is comparatively 
shallow and it is likely that an anchorage could be made here. 
It was not attempted by our party. 
We were unable to remain on this island for more than a few 
hours in consequence of this the higher parts were not visited, 
botanical collecting being confined to a shelf about 250 ft. above 
sea level. The remainder of the island rises several hundred 
feet higher. 
The only trees found on the island were those of Erythrina 
velutina, a small grove of which occurs on the northeast side. 
Bushes of Croton Scouleri var. brevifolius occur in dense thick¬ 
ets and some of the specimens are several feet high approaching 
the size of small trees. Low thickets of Opuntia Helleri are to 
be found along the tops of the cliffs and hanging over the sides. 
Ipomoea Kinbergi occurs commonly on trees. Other plants 
found rather abundantly are: Scalesia Snodgrassi, and Telanth- 
era Helleri var. obtusior. A few ferns were seen growing in inac- 
cessable places on the sides of the cliffs. By shooting into a 
