164 
Common on the Washita, Red-river, near Nat¬ 
chitoches, &c. 
558. Robinia pumila. Dwarf locust, D. Near Nat¬ 
chitoches, a shru b : vulgar name, Musquito wood. 
Perhaps it is the R. viscosa or the R. hispida, not 
described. 
559. Robinia bistineau! Bistineau locust, D. Found 
on lake Bistineau, a dwarf tree about 20 feet high, 
without thorns. Mr. Darby thinks it is a new 
species ; which may be the case, since he told me 
verbally that it has white flowers, and small few 
seeded oblong flat legumes : it is perhaps not a 
Robinia. if such, and new, it must be called Ro * 
bi?iia ludoviciana . 
560. Rubus villosus or R. fruticosus. Blackberry, D. 
561. Rubus pubescens. Abundant along the banks of 
the Mississippi, and nearly all the rivers of Lou¬ 
isiana. 
562. Sambucus rubra, D. Perhaps the S. ebulus na¬ 
turalized. It indicates fertile lands. 
563. Salix nigra. Common in swamps, lagoons and 
along the rivers. Used for fuel. 
564. Smilax rotundifolia. Common in woods, entang¬ 
ling the trees, very troublesome. Green briar, D. 
565. Tilia pubescens. In the north and east of the 
State. 
Ulmus americana. Mucilaginous Elm. This 
is probably the U. pinguis or U. alba, sp. 387 and 
388. Common. 
566. Ulmus rubra. Red-elm, D. Must be the U, 
