VOLS) Voyage of the Wahlberg. 25 
these two collections have been described as new. ‘These I had 
hoped tu see, and was much disappointed to find the region was 
perfectly dry and seemed not to have been rained upon for years. 
The only green vegetation were the Suzedas and Lyciums, grow- 
ing in the brackish soil, and the only bright color visible was 
_ that of the few straggling scarlet blossoms of Fouquieria. A few 
plants were recognized that were before known only from Cedros 
Island, and made it evident that an accurate knowledge of the 
distribution of the neighboring island forms cannot be obtained 
without a more thorough examination of the adjacent mainland. 
Dalea Benthami, found hitherto only on Cedros and Santa Mar- 
garita Islands, is common in the sandy gulches running into the 
bay, and it was seen again on the coast near Asuncion Island. 
Rhus Lentii is not uncommon in the cafions, and was also found 
about San Pablo Bay; its only habitat was supposed to be Cedros 
Id. Vigutera lanata is found on the rocky hills about the en- 
trance to the harbor; it isa common plant on Natividad and 
Cedros Islands. Lavatera venosa grows upon a rock at the 
mouth of the harbor, and surrounded by water is preserved from 
destruction by animals that would like to feed upon it. The dis- 
tribution of the Lavateras of these Mexican islands is very inter- 
esting. Lavatera venosa is extremely abundant on the San 
Benito Islands, and grows on San Geronimo Islands and at San 
Bartolomé Bay. The leaves of the San Bartolomé form are more 
laciniate than those from San Benito, and this peculiarity would 
seem to show that it is not a recent introduction from the latter. 
L. occidentalis persists on the cliffs of the cafions of Guadalupe 
Island, in localities inaccessible to goats, and L. zusularis belongs 
exclusively to the Coronado Islands near San Diego. L. znsularis 
and ZL. occidentalis are not very distinct from one another. These 
three species thrive well in cultivation at San Diego and spread 
rapidly, but it is difficult to be certain whether many of the 
young plants belong to the Guadalupe or the Coronados forms, 
perhaps a result of cross-fertilization. Herbivorous animals are 
fond of Lavatera, and the presence of goats on Natividad would | 
account for its absence there; and on Cedros in addition to 
these animals, so destructive to botanical interests, there are deer 
