HARPER: TrIP ON WARRIOR AND TOMBIGBEE RIVERS 121 
DIAPEDIUM BRACHIATUM (Pursh) Kuntze. 
On shaded alluvial banks, Tuscaloosa, Marengo, and Wash- 
ington counties, nearly past flowering. This genus is an addition 
to the known flora of the state. 
CONOBEA MULTIFIDA (Michx.) Benth. 
On exposed loamy banks of the Tombigbee in Sumter County, 
near Demopolis (v0. 720) and Moscow. Nearly past flowering. 
Dr. Mohr knew this only as a ballast plant in Mobile County, but, 
where I saw it, it seemed as much at home as any of the other 
river-bank annuals. However, as stated above, there seems to be 
no criterion for distinguishing native from introduced species in 
such places. 
Nyssa UNIFLORA Wang. 
It is perhaps worth recording that this was not seen on the 
banks of the river at all, but only in a slough on top of a second- 
bottom bluff in Marengo County nearly opposite the boundary 
between Sumter and Choctaw. There it was accompanied by 
Taxodium distichum, as is often the case throughout its range. 
THASPIUM BARBINODE CHAPMANI C. & R. 
On the limestone on the shaded north side of St. Stephens 
Bluff. Previously known only from Randolph County, Georgia, 
and Jackson County, Florida, likewise on Eocene limestone.* 
AMMANNIA COCCINEA Rottb. 
On wet banks, nearer horizontal than vertical, of soft Eocene 
rock along the Tombigbee in Sumter, Marengo, Choctaw, Clarke, 
and Washington counties. Known to Dr. Mohr only from 
Mobile County. 
Acer rubrum L. and Magnolia glauca L. were not seen at all, 
probably because they are chiefly confined to areas much farther 
from base-level (as a physiographer would term it) than the banks 
of a large sluggish river. 
MENISPERMUM CANADENSE L., 
On shaded alluvial banks on both sides of the Tombigbee near 
the northeastern corner of Choctaw County. This is not men- 
“*See Bull. Torrey Club 33: 240. 1906; Coulter & Rose, Contr. U. S. Nat. 
Herb. 7: 148. 1900. 
