192 TOWNSENDIA SERICEA.—SILKY TOWNSEND FLOWER. 
and expands the following spring.” Dr. C. E. Parry found it in 
1861 in the Rocky Mountains, about the head waters of South 
Clear Creek ; and about the same time and near the same place 
it was found by Hall and Harbor. Mr. Brandegee has collected 
it in southern Colorado, and as already noted it has been found 
in the Indian Territory, if Prof. Wood’s 7. Wdlcoxiana is the 
same thing. 
Townsendia was so named by Sir W. J. Hooker in honor 
of David Townsend, cashier in the same bank in West Chester, 
Pennsylvania, of which the celebrated Dr. Darlington was Presi- 
dent, and who, though he wrote nothing, was one of the best 
botanists of his time, and had an especial knowledge of Astera- 
ccous plants. In this especially, as well as for a free distribution 
of specimens to European botanists, they were glad in this 
pleasant way to make acknowledgments. He died at West 
Chester, Pennsylvania, December 6th, 1858, in his seventy- 
first year; preceding but by a few years his life-long friend and 
companion, Dr. Darlington, who died on the 22d of April, 1863, 
in his eighty-first year—the two having rendered West Chester 
famous in the botanical annals of America, and both being com- 
memorated in distinctively American plants which bear their 
names, 
EXPLANATIONS OF THE PLaTe. 1. A full-sized plant. 2. Side view showing the almost 
globular involucre. 3. Ray floret with pappus and young achene enlarged. 4. Enlarged 
disk floret. 5. Pollen grain enlarged 270 times. 6. Side view of a branch, with side view 
of flowers, showing its proportionate length with the leaves. 
