NOTES ON THE NATURALIZED PLANTS OF SOUTHERN 
CALIFORNIA. V. 
BY S. Bi PARISH 
THE CHILIAN Group.— This convenient but misleading term 
may be used to designate a considerable number of plants common 
to the western shores of North and South America in their respect- 
ive temperate zones. Situated in the south, between the same par- 
allels of latitude as California in the north, Chili has a similar cli- 
mate and soil and same general likeness in configuration. But their 
partial identity of vegetation cannot be explained by such physical 
resemblance. It sometimes exists in countries otherwise quite dis- 
similar, or is lacking in those having like conditions in many re- 
spects. When it can be traced, although between regions now un- 
connected, it is held to be evidence of vegetable migrations due to 
causes in the remote past, the consideration of which affords a com- 
mon ground for the geologist and the botanist. 
No such traces of a common flora exist upon the eastern side of 
the two continents, but their western coasts sustain a remarkable, 
number of identical genera and species, not to mention others which 
are represented in the one country by close analogies in the other. 
Some are confined to the border of the sea, while others extend 
their range to a greater or less extent eastward, a few in both lati- 
tudes reaching the Atlantic.” All, however, are typically western, 
and have in the west their centers of distribution. 
The following list includes most of those genera found in both 
Chili and California, which are not represented in the two countries 
by the same species: 
TABLE OF GENERA.” 
, . Vesicaria, Osmorrhiza, Actinella, 
Malvastrum, Gutierrezia, Microseris, 
Spheralcea, Aplopappus, Downingia, 
Larrea, : Micropus, Menodora, 
_-Hoffmanseggia, Adenocaulon, Erythrea, 
Gayophytum, — Jaumea, Coldenia, — 
Boisduvalia, Lasthenia, Amsinckia, 
Godetia, ee abies 8 | Orthocarpus, 
Mentzelia, Bishnosperms, ne Chorizanthe.— oes 
_*This and the waceuiiae list of an: are compile with p additons, from a 
| Hooker and say Veget. Rocky Mts., a : 4 
2 oe, aE 
