Add to ORKGA cursory examination of the deciduous forest of eastern North America, at intervals from its center (14) in the Ohio River basin westward, discloses changes in the structure of the forest characterized chiefly by a reduction in number of species and in the abundance and size of the component trees. Beyond the Mississippi river in Iowa and eastern Nebraska the forest flora is concentrated chiefly along streams flowing diagonally southeastward. Bordering these streams the deciduous forest extends into the prairie
The physical factors within the transition zone between the typical prairie association of the state...
The rather uniform till plain topography of Indiana would seem, naturally, to imply a homogeneity an...
No detailed listing of the complete vascular flora of any woodland site along the Missouri River of ...
A cursory examination of the deciduous forest of eastern North America, at intervals from its center...
At the twentieth annual session of the Iowa Academy of Science held in Ames on April 20 and 21, 1905...
The paper before the Academy consisted in a verbal communication of the salient features of the fore...
Vegetation of the slope forests along the Des Moines River in the area of the Saylorville Reservoir ...
In studying the distribution of the native forest-trees of Nebraska, I have evidence that most of th...
During parts of the growing seasons of 1924 and 1925 a preliminary study has been made of two types ...
The vascular flora of the Loess Hills landform in southeastern South Dakota, western Iowa, and north...
The rugged bluffs along the upper Mississippi river, particularly those which border that part of th...
In order to understand the forestry conditions of Adair County, a short description of the lay of th...
Nebraska lies near the center of the region known as the Great Plains of North America and near the ...
Botanically and geologically, one of the most interesting areas in the Upper Middle West is the Dri...
The tall grass prairie forms a belt across the United States from Canada to Mexico. This belt lies b...
The physical factors within the transition zone between the typical prairie association of the state...
The rather uniform till plain topography of Indiana would seem, naturally, to imply a homogeneity an...
No detailed listing of the complete vascular flora of any woodland site along the Missouri River of ...
A cursory examination of the deciduous forest of eastern North America, at intervals from its center...
At the twentieth annual session of the Iowa Academy of Science held in Ames on April 20 and 21, 1905...
The paper before the Academy consisted in a verbal communication of the salient features of the fore...
Vegetation of the slope forests along the Des Moines River in the area of the Saylorville Reservoir ...
In studying the distribution of the native forest-trees of Nebraska, I have evidence that most of th...
During parts of the growing seasons of 1924 and 1925 a preliminary study has been made of two types ...
The vascular flora of the Loess Hills landform in southeastern South Dakota, western Iowa, and north...
The rugged bluffs along the upper Mississippi river, particularly those which border that part of th...
In order to understand the forestry conditions of Adair County, a short description of the lay of th...
Nebraska lies near the center of the region known as the Great Plains of North America and near the ...
Botanically and geologically, one of the most interesting areas in the Upper Middle West is the Dri...
The tall grass prairie forms a belt across the United States from Canada to Mexico. This belt lies b...
The physical factors within the transition zone between the typical prairie association of the state...
The rather uniform till plain topography of Indiana would seem, naturally, to imply a homogeneity an...
No detailed listing of the complete vascular flora of any woodland site along the Missouri River of ...