BOTANICAL GAZETTE. 165 
ing in the garden, the original tree which stood outside having 
been cut down many years ago by mistake. After inspecting the 
house and the cypress, the party scattered, roaming through the 
grounds at pleasure, noting the great variety of trees and shrubs 
which Bartram had colleeted in his travels from Ontario to 
Florida. ! 
The return to the,station was along a better road than the 
first one traversed, and toward train time the party gathered on 
the steps of the station to chat over the delightful pilgrimage, 
s00n completed by the homeward ride. 
* 
A Hybrid Grass.” 
BY DR. GEO. VASEY. 
_ In a low meadow on the banks of Hunting creek, near where 
it empties into the Potomac river, a mile below Alexandria, Va., 
[ found, the present season, T’risetum palustre, L. and Eatonia 
Pennsylvanica, Gr. I was surprised, and puzzled also by finding’ 
growing with these grasses another, which was evidently inter- 
mediate between them. The field covered several acres, aud 
there was an abundacne of specimens of all kinds, although the 
Trisetum was mostly out of flower, and, toa considerable extent, 
had dropped its seed. A careful survey of the circumstances led 
ine to the conclusion that the intermediate form was a true and 
the two grasses belong to different genera, which in some of 
, An account of Bartranvedion travels, and garden may be found in Har- eS 
per’s Magazine for February, 1850. : ~~ . 
ene read before the Botanical Club of the A, A. A.S., Philadelphia, 
