DIOECIA OCTANDRIA. 
711 
losis; petiolis superne younger villous; peti- 
compressis. oles compressed near 
their summit. 
Mich. 2. p. 243. Pursh, 2. p. 619- Nutt. 2. p. 239. 
Mich. arb. for. 3. p. 287. 
A tree 40—50 feet high, with smooth bark and branches thinly dispersed. 
Leaves alternate, nearly circular, with large irregular teeth, and prominent 
veins, when young tomentose, becoming glabrous with age, on petioles 2 — 4 
inches long. Flowers in small axillary cylindrical aments, shooting out 
early in the spring with the first buds, very small and inconspicuous. Cap- 
sules small, containing many minute seeds surrounded by. long cottonlike 
hairs which causing them to float readily on the air, render them easy of dis- 
persion, and have given to several species in different parts of the United 
States the common name of Cotton-trees. 
Grows in the mountainous districts of Carolina and Georgia, 
Flowers March. 
2. Angulata. Aiton. 
Leaves ovate-del- 
toid, acuminate, obtuse- 
ly and uncinately 
toothed, glabrous, when 
young very large and 
cordate; branches an- 
gled, slightly winged. 
Sp. pi. 4. p. 805. Pursh, 2. p, 6l9. Nutt. 2. p. 239. 
P. Nigra? Walt. p. 248. 
P. Angulosa, Mich. 2. p. 243. 
Mich. arb. for. 3. p. 302. 
A large tree, growing 50-^-80 feet in height and 2—3 in diameter; the 
young branches are all winged and angled by the decurrent petioles or by 
the junction of different branches, and these vestiges are not effaced for seve- 
ral years. Leaves ovate-deltoid, acuminate, serrate, glabrous, sometimes 
slightly cordate, on the young shoots 5—7 inches long, 4—5 wide, on the 
old trees smaller, on compressed petioles 2—4 inches long. Flowers very 
small. Seed not as conspicuously villous and white as in some other spe- 
cies. 
This is, I believe, the only species of this genus which is found along the 
sea-coast of Carolina and Georgia. Its leaves are easily agitated bv the 
wind. Its wood is light, brittle, and not durable. 
Grows along the margin of river?. 
.Flowers March, 
F. foliis ovato-deito- 
ideis, acuminatis, ob- 
tuse uncinato-dentatis, 
glabris, junioribus am- 
plissimis cordatis; ra- 
mis alato-angulosis. 
