OF NORTH AMERICA, 
39 
branches, bark whitish, leaves oblong, base 
acute obliqual, duplicate dentate, roughish and 
lucid above, villose beneath — in Louisiana and 
other States, 50 to 60 feet high, long flexible 
branches. As this with the last and next are 
often blended under the vulgar name of White 
Elm, I must add what I consider as the real 
U, Americana. 
570. Ulmus amekicana L. Authors : (sessi- 
lis Raf. better name.) Tree, branches divar- 
gent, branchlets terete smooth rugose, leaves 
subsessile ovate acuminate, duplicate serrate, 
base very obliqual subcordate, above rough, be- 
neath soft hardly pubescent — chiefly in the Al- 
leghany mts. large tree 60 to 80 feet high, 
leaves 3 to 4 inches long 2 or 3 broad. Thus 
quite distinct from both the preceding. 
571. Ulmus dentata Raf. Tree, branchlets 
terete smooth, leaves ample and thin, on long 
petiols, obovate, base acute entire, not obli- 
qual, large sharp teeth above, end subacumi- 
nate, smooth on both sides, fruits fasciculate pe- 
duncled oblong bifid fimbriate on the sides — a 
fine new Elm, sent me from Alabama as U. 
fulva , but totaly unlike, much nearer to U. nc- 
moralis ?. which differs by oblong leaves and 
sessile flowers. Leaves very large 6 to 7 in- 
ches long, 3 to 4 broad, petiols over one inch 
longer than in any other sp. the large subequal 
teeth are only in the upper half, fascicles of 
flowers multiflore, pedicels filiform, calix cam- 
panulate, stamens exserted, pistil cuneate oblong 
bifid by the 2 styles. It is called the yellow 
Elm. 
572. Ulmus dimidiata Raf. shrubby, branch- 
lets smooth angular, leaves on very short peti- 
ols, quite smooth biforme, some smaller ovate 
