Enumeration of the Species of Plants Collected by Dr. C. C. Parry, and Messrs. Elihu Hall and J. P. Harbour, during the Summer and Autumn of 1862, on and near the Rocky Mountains, in Colorado Territory, lat. 39°-41°
Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1863, in volume 15, pages 55-80
Date published:1863