HARPER: BOTANICAL CROSS-SECTION OF Mississipp1 389 
TREES (continued) HERBS 
I Quercus nigra 5 Plantago aristata 
I Quercus Michauxii 3 Rubdeckia hirta 
I Taxodium P goserats: 2 ~~ 
I Quercus v 2 Asclepias tuber 
I Pe Tulipifera 1 Tripsacum dactyloides 
r Daucus A sae s 
SHRUBS 1 Euphorbia sp. 
I2 Prunus angustifolia 
rr Sambucus canadensis 
ni 
Rhus 
aes nigra is partly evergreen (probably less so here than 
nearer the coast, though), but with this possible exception no 
evergreens were seen. Ericaceae and Cyperaceae are likewise 
rare or absent. 
Bluff region. Carrollton is near the brow of a line of bluffs 
which border the flood-plain of the Mississippi River all the way 
from Memphis to Vicksburg, and form one of the most prominent 
topographic features in Mississippi. From Carrollton station 
(North Carrollton P. O.) the railroad descends rapidly for six or 
eight miles to the foot of the bluffs, following the valley of a 
creek. I walked the railroad from North Carrollton to Mal- 
maison, which is near the edge of the flood-plain, and from there 
northward up into the bluff hills about two miles and back. 
Geologists generally map the surface formation of these bluffs 
(‘cane hills,’ they are called farther south) as loess, but what I 
saw of it in Carroll County looked almost exactly like the “second 
bottom” loam along many rivers in the coastal plain of Alabama, 
and quite different from the more typical loess which I saw a few 
days later in Arkansas, and between Memphis and Holly Springs. 
The steeper slopes of the bluffs are strewn in many places with 
subangular cherty pebbles. 
The plants seen along and near the railroad and creek between 
Carrollton and Malmaison are mostly species characteristic of 
bottom-lands, as follows. 
TREES 
Taxodium distichum _— Michauxii 
hooey Styraciflua " Acer Negundo 
Ss : Oo lyrata 
Diktannec occidentalis Jug nigra 
Cercis canadensis sro dron Tulipifera 
Carpinus caroliniana aarp aad 
Betula nigra Ulmus 
Morus rubra 
