Note 150 — {188} CHAPTER IX {VII}

A. cœrulea, James.—Leaves twice ternate; flowers terminal, remote, nectaries strait and very long. It inhabits shady woods of pine and spruce within the mountains, rising sometimes to the height of three feet. In passing from the headwaters of the branch of the Platte, called Defile creek, to those of one of the northern tributaries of the Arkansa, we noticed some change in the soil, and soon met with many plants we had not before seen. Several of these, as the common juniper and the red cedar, (Juniperus virginiana, Ph.) the black and hemlock-spruce, (Abies nigra and A. canadensis) the red maple (Acer rubrum, Mx.) the hop horn-beam (Ostrya Virginica, L.) the Populus tremuloides, Mx. Pinus resinosa, Pyrola secunda, Orchis dilatata, olc. are common to mountainous districts in all the northern parts of the territory of the United States; many others are here found, which require more careful and extensive comparison with the plants of Mexico, Siberia, and other countries, than have yet had the opportunity to make.—James.