vor. iv.] Southern Extension of Calrfornia Flora. 203 
Fremontia Californica Torr. A single specimen was found 
in the Salado Cafion near Colnett. 
Linum perenne I,. Common on San Pedro Martir. 
Geranium cespitosum James. San Pedro Martir. 
Rhus ovata Watson. Common on San Pedro Martir. 
Rhus integrifolia Nutt. This is usually a much branched 
shrub, but in some localities it becomes a tree having a diameter 
of more than a foot. It is known when large by the name 
mahegany. ~ 
Rhamnus Californica Esch. A very common bush on San 
Pedro Martir. 
Ceanothus cordulatus Kellogg. A bush forming thickets six 
feet high. Flowers white and sometimes decidedly light purple 
in color. Highest elevations of San Pedro Martir. 
Ceanothus Greggii Gray. Flowers white. San Pedro Martir. 
Ceanothus Palmeri Trelease. Twigs green, leaves more or 
less dentate, flowers blue. The most beautiful species of 
Ceanothus on San Pedro Martir. 
Ceanothus hirsutus Nutt. Slopes of San Pedro Martir. 
Lupinus PALLIDUS. Annual, a few inches in height, branch- 
_ ing from the base, often spreading and forming tufts nearly a foot 
in diameter, densely strigose-pubescent and with some spreading 
hairs, leaflets five or six, spatulate, rounded at apex, 10-15 mm. 
long, usually much shorter than the petiole; stipules adnate for 
half their length: racemes short-peduncled, terminating the 
branches, capitate in flower, elongating but dense in fruit; bracts 
much shorter than the calyx: upper lip of calyx, 3 mm. long, 
deeply cleft into two divergent lobes; lower lip a third longer, 
oblong, very shortly three-toothed at apex; bracteoles none: 
corolla white without markings, about twice the length of the 
calyx; entirely glabrous; standard shorter than the wings and 
shortly cleft keel: ovary four-ovulate; pod pubescent, three or 
four seeded; seeds white marbled with black. 
Sands in the dry bed of the creek near the Mission of San 
‘Vincente in northern Baja California, May, 1893- : 
Lupinus truncatus Nutt. Slopes of San Pedro Martir. 
