368 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM, 
Baccharis sarothroides A. Gray. 
This species ranges mainly in the Lower Sonoran Zone from southern California 
southward on both sides of the Gulf of California. Specimens were taken by us on 
wet soil at San Fernando, September 4. Recorded by Brandegee from the Sierra 
San Lazaro in the Cape District south of La Paz and from San Gregorio. 
Baccharis glutinosa Pers. 
This species or a plant referred to it ranges from California south in wet places at 
low elevations throughout Lower California and is widely dispersed on the Mexican 
mainland from the Sonoran to the Tropical zones. It was taken by us at Rosarito and 
San José del Cabo. Recorded by Brandegee from San Gregorio and Comand4. 
Baccharis viminea DC. 
This species ranges southward from California throughout the greater part of the 
Peninsula, It was taken by us along a small stream in the hills between La Purfsima 
and Comandt and has been recorded by Brandegee from San José del Cabo. 
Bebbia atriplicifolia (A. Gray) Greene. 
This shrub seems to be known only from the southern part of the Peninsula, where 
it is associated with many subtropical species. It grows 1 to 3 meters high in sandy 
soil. Flowering specimens were taken by us in the vicinity of the type locality near 
Cape San Lucas, January 4, and at Santo Domingo, September 26. Brandegee records 
this species from San Gregorio and Comandt and agrees with Dr. Gray that it is 
probably the same as B. juncea of Magdalena Island. 
Chrysoma diffusa (Benth.) Greene. 
This shrub was described in the Botany of the Voyage of the Sulphur, from Magda- 
lena Bay. It appears to belong in the subtropical areas on both sides of the Gulf of 
California, A few miles north of Matancita, and therefore near the type locality, we 
found it common on the coast plain and flowering November 15. At Cape San Lucas 
it was still flowering December 30. 
Chrysoma palmeri (A. Gray) Greene. 
This species ranges southward from southern California in the Lower Sonoran Zone. 
Flowering specimens were taken on the sandy coast at Santo Domingo, September 
26. The species forms a round-topped bush 0.5 to 1.2 meters high. 
Coleosanthus atractyloides (A: Gray) Kuntze. 
This species, widely distributed in the southwestern United States, was taken in 
the Upper Sonoran Zone near Alamo, where it was flowering June 11. 
Coreocarpus involutus Greene. 
In the original description of this species, from material taken at San Bartolomé 
Bay by Lieut. Pond in March, 1889, it is represented to be an annual, 15 cm. high. 
Doctor Greene has referred to this species a shrub 1.2 to 1.5 meters high, collected by 
us on the coastal plain between Matancita and La Cruz. In the light of this additional 
material, C. involuts is evidently a much larger plant than was at first supposed. 
It appears to belong to the subtropical flora of the Peninsula. It was bearing flowers 
and fruit December 9. 
Encelia farinosa A. Gray. INCIENSO. WHITE BRITTLE BUSH. 
This handsome and widely dispersed shrub seems to belong mainly to the Lower 
Sonoran Zone, but reaches in places into the Upper Sonoran and in the Cape District 
