60 
SILVA OF NORTH AMERICA. 
ROSACEA. 
under command of Colonel William H. Emory,‘ on one of the mountain ranges near the head-waters of 
the Gila River. 
The snowy whiteness of the under surface of its leaves and the abundance of its flowers make 
Vauquelinia Californica an attractive and beautiful plant well worth a place in the gardens of all dry 
temperate regions. 
1 William Hemsley Emory (1811-1887) was born in Queen 
Anne County, Maryland, and was graduated from the military 
academy at West Point in 1831, when he was appointed a second. 
lieutenant of artillery. He resigned from the army in 1836 in 
order to practice civil engineering, but two years later was reap- 
pointed with the grade of first lieutenant of topographical engi- 
Emory served with distinction in California and in the 
Mexican War, and on the conclusion of peace was named astronomer 
to the ission for establishing the boundary between the United 
States and Mexico, and afterwards became a member of this com- 
He fought gallantly in the War of the Rebellion and ob- 
neers. 
mission. 
tained the rank of major-g 1 of volunt He is the author 
of Notes of a Military Ri Srom Fort L th in Mis- 
souri to San Diego in California, published in Washington in 1848 ; 
of Notes of Travel in California, published in New York in 1848, and 
of the Report of the United States and Mexican Boundary Commis- 
sion, published in Washington in 1857. 
Emorya, a shrub of New Mexico and Arizona, dedicated to him 
by Torrey, comthemorates General Emory’s active and intelligent 
interest in increasing the knowledge of plants, and connects his 
name with the scenes of his scientific labors. 
EXPLANATION OF THE PLATE. 
Puate CLXIV. Vavuquetinia CALiFORNICA. 
is 
SO St oe 
BRP 
a el 
. A flowering branch, natural size. 
Diagram of a flower 
A flower, enlarged. 
Vertical section of a flower, enlarged. 
A stamen, enlarged. 
A pistil, enlarged. 
An ovule, much magnified. 
A fruiting branch, natural size. 
A fruit, enlarged. 
A fruit, after the splitting open of the carpels, enlarged. 
Vertical section of a fruit, enlarged. 
. A seed, enlarged. 
. An embryo, magnified. 
