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FLORA OF THE GALAPAGOS ISLANDS. 249 
been subsequently visited by Dr. Habel, the Hassler Expedition, Dr. 
Wolf, Dr. Baur, 11 to 18 July, 1891, and Messrs. Snodgrass and Heller. 
Altogether 76 flowering plants have been found on the island. Of these, 
8 are Compositae, 7 Boraginaceae, 7° grasses, and 5 Amarantaceae. 
Nine species and one form are peculiar to the island. Among these are 
two species of Scalesia, and two of Borreria. The vegetation so far as 
yet shown is of a more xerophytic cast than that of the other large 
islands, although it is to be suspected that this is due to imperfect ex- 
Ploration. Perhaps the most striking feature is the entire absence of 
ferns. The genus Croton, also, although one of the commonest and most 
widely distributed in the Galapagos, has not been collected or reported 
upon Indefatigable. Of the 76 plants known to occur on this island, 51 
have been found on Chatham, 48 on Charles, and 46 on Albemarle. 
JAMES ISLAND. 
James is also one of the larger, higher, and more central islands. It 
has been visited by most of the expeditions which have explored the 
archipelago, and 153 plants have been collected upon it. Of these 19 are 
peculiar to the island, and 56 to the archipelago. The most noteworthy 
feature is the relative abundance of ferns, which here amount to 13 
per cent of the whole vascular vegetation, — a striking contrast to their 
entire. absence on the adjacent Indefatigable. The nearest affinities of 
the flora of James are with Charles, Albemarle, and Chatham. 
JERVIS ISLAND. 
Jervis Island is less than 3 km. long and of low altitude. It is but 
9.6 km. south of James, and together with Duncan lies in a small portion 
of the ocean to a considerable extent inclosed by James, Albemarle, and 
Indefatigable islands. It was visited by the “Hassler,” but so far 
as I can learn, only Dr. Baur has collected plants upon this island. 
He secured 22 different kinds, of which 2, Zuphorbia viminea, forma 
Jervensis, and Castela galapageia, forma jervensis, are foliar forms of 
species which in slightly different forms are rather widely distributed 
on the islands. It is a curious fact that of the 22 plants observed on 
this island only 9 have been found on the adjacent James Island, al- 
though 12 have been collected upon Chatham, and no less than 15 on 
Charles, both much more distant. Fourteen, or about two-thirds, of the 
plants of Jervis are confined to the Galapagos Archipelago. 
