SOME PLANTS FROM LOWER CALIFORNIA. 987 
least like this, whatever it might be in S. Virginiensis. Our 
plant is abundant on the Mission Hills in San Francisco ; 
also on the northward slope of Mt. Tamalpais, and is frequent 
in the Mt. Diablo Range. It extends northward at least 
to Humboldt Co., Calif., and probably into Oregon. Of its 
limits southward I have no certain knowledge. I saw what 
I assume to be the same, on the mountains back of Santa 
Barbara, and the * S. reflexa" of Orcutt’s Catalogue of San 
Diego County may be the same. 
Some PLANTS FROM THE Bay or SAN BARTOLOMÉ, 
LOWER CALIFORNIA. 
Lieutenant Pond, who recently made so valuable a contri- 
bution to our knowledge of the botany of two Lower Cali- 
fornian islands, has now sent us quite as interesting a collec- 
tion from the vicinity of San Bartolomé Bay, a part of the 
main-land which has hitherto remained unexplored. The 
specimens were collected in the month of March, 1889, and 
all of them from “low plains around the southern shore of 
the Bay.” 
The list which follows contains a very large proportion of 
new species, besides greatly extending the known geographi- 
cal range of several others which have long been known. 
1. ARABIS PECTINATA. Annual, glabrous, glaucous, a foot 
high, erect, simple or with several loosely racemose flowering 
branches: leaves 2 or 3 inches long, consisting of a linear 
rachis and 5—7 pairs of linear-filiform divaricate segments 
which are slightly dilated at tip: racemes 6—10 inches long, 
the pedicels 4 inch long, horizontally spreading in flower, 
recurved in fruit: sepals purple, 14 lines long; petals 3 
lines, white. 
