574 
MONOEC1A TRIANDRIA. 
panicles, perhaps most of the early flowers sterile, the later fertile, branches 
of the panicle very hispid. Calyx hairy. Seed oblique, resembling much one 
joint of the pods of the Hedysarum. 
The fibres of the two last described species are so strong that it has been 
strenuously proposed to substitute them in many cases for hemp. 
Grows in Carolina along the mountain streams, Pursh. I have not seen 
this species in the maritime districts of Carolina or Georgia. 
Flowers July — August. 
MORUS. Gen. Pe. 1424. 
Masculi. Calyx 4- 
partitus. Corolla 0. 
Foeminei. Calyx 4- 
phyllus. Corolla 0. 
Sty It 2. Calyx bacca- 
tus. Semen 1. 
1. Alba. 
M. foliis profunde cor- 
datis, basi inaequalibus, 
ovatis lobatisve, i une- 
qual iter serratis, laevi- 
usculis. 
Sp. pi. 4. p. 368. Nutt. 2. p. 209. 
Sterile Jlorets. Ca- 
lyx 4-parted. Corolla 0. 
Fertile Jlorets. Ca. 
lyx 4-leaved. Corolla 
0. Styles 2. Calyx 
berry formed Seed 1 . 
Leaves deeply cor- 
date, unequal at base, 
ovate and lobed, un- 
equally serrate, nearly 
smooth. 
Leaves undivided, shining, thin. Flowers monoecious. 
This tree, a native of China and Persia, is now entirely naturalized in 
this country. Around the plantations in the low country it occurs, I think, 
more frequently than our native species. It grows from twenty-five to thirty 
feet high, and sometimes two to three feet in diameter. Its peculiar inha- 
bitant, the silk worm, thrives equally well. 
Flowers March. 
2. Rubra. 
U. foliis cordatis, o- 
vatis, acuminatis trilo- 
bisve, aequaliter serra- 
tis, scabris, subtus pu- 
Leaves cordate, o- 
vate, acuminate, fre- 
quently three-lobed, e- 
qually serrate, sea- 
