MONOECIA TRIANDRIA, 
591 
scapo simplici; floribus 
dioicis; bracteis calyci- 
busque subrotundis, ob- 
tusis. 
scape simple; flowers 
dioecious; bracteas and 
calyx nearly round, 
obtuse. 
Pursh, 2. p. 213. Nutt. 2. p. 213. 
S. Gracilis, Pursh, 2. p. 396. 
A plant in its general habit resembling the two preceding, but the leaves 
are long, very narrow, with long, slender, divaricate lobtfs. In the var. 
Gracilis, Pursh remarks that the leaf (from the summit of the petiole) rarely 
exceeds 3 inches in length. 
Grows (at least the var. Gracilis) in the mountainous districts of Carolina 
and Georgia. 
Flowers July — August- 
4. Natans. Mich. 
5. foliis natantibus, 
elliptico-lanceolatis,ob- 
tusis. nervosis, infimis 
subcordatis; scapo sim- 
plici, paucifloro; pedun- 
cuiis inferioribns elon- 
gates. 
Leaves floating, el- 
liptic-lanceolate, ob- 
tuse, nerved, the lowest 
slightly cordate; scape 
simple, few-flowered; 
lower peduncles very 
long. 
Mich. 2. p. 190. Pursh, 2. p. 397* Nutt. 2. p. 213. 
Root perennial, the fibres articulated. Leaves generally floating, elliptic, 
entire, 3-nerVed, the lowest ovate cordate, 7-nerved, 1- — 2 inches long. 
Scape generally erect, 3 — 6 inches long. Flowers not numerous, small, 
the upper sterile. Leaves of the calyx lanceolate. Petals round. Stamens 
about 8. Germs numerous. 
Grows in shallow ponds. When deserted by water it becomes erect, but 
rarely exceeds 6 — 8 inches in height. 
Flowers May — August. 
5. Lancifolia. 
S. foliis lato lanceo- 
latis, utrinque acutis, 
glabris, coriaceis, sub- 
perennantibus; scapo 
Leaves broad, lan- 
ceolate, acute at each 
end, glabrous, coriace- 
ous, somewhat perenni- 
