... Humphrey) and Northampton (Mrs. Emily H. Terry), probably about the southern limit of the species; Rhode Island and Connecticut, not reported. West through the northern sections of the northern tier ... poplar The order and names of families follow, in the main, Engler and Prantl. In accordance with the general tendency of New England botanists to conform to the best usage until an authoritative ... height, and the heads are much smaller. When the trunk tapers uniformly from the ground upward, the given diameter is taken at the base; when the trunk is reinforced at the base, the measurements...