516 
MONOECIA kONANDRIA. 
Stigmata 5. Bacca 
uriilocularis, polysper- 
ma. 
Stigma 5. Berry 1. 
celled, many seeded. 
1. Vulgaris. 
C. caulibus ramulis- 
que basi nudis; ramu- 
lis teretibus, articulis 
foliosis; foliolis oblon- 
gis, subulatis; bracteis 
bacca brevioribus. 
Stem and branches 
naked at base; branch- 
es terete, the joints 
leafy; leaves oblong, 
subulate; bracteas 
shorter than the berry. 
Sp. pi. 4. p. 183. Pursh, 1. p. 4. Nutt. 2. p. 202. 
Stem submersed, branched, rough, brittle and gritty when dry. Leaves 
six to eight, in a whorl as long as the joints and of the same texture, narrow, 
subulate, slightly channelled on the upper surface, the lower ones simple; 
the upper bearing on their upper sides rows of erect leaflets, four in a cluster 
among which the flowers are placed. Anther solitary, sitting at the base of 
the germ. Germ ovate, spirally striated, crowned with five little leaves. 
(Stigmas?) Fruit with a hard shell. Seeds imbedded in a reddish pulp. 
Smith. Eng. Bot. No. 336. 
Grows in ponds and ditches. Canada to Carolina, Pursh. I have not 
noticed this species in our low country. 
Flowers June— July. 
2. Capitata. E. 
Cl caule ramulisque 
teretibus, glabris; arti- 
culis foliolis; fructibus 
capitatis; bracteis bac- 
ca paulo longioribus. 
E. 
Stem and branches 
terete, glabrous; joints 
leafy; fruit in heads; 
bracteas a little longer 
than the berry. " 
Stem submersed, floating, terete, glabrous, somewhat diaphanous. Leaves 
in whorls, generally six, terete, very acute. Flowers? very numerous, col- 
lected in axillary heads, at first sessile, afterwards pedunculate. Bracteal 
leaves 4? transparent* acute, a little longer than the fruit. Berry smooth, 
yellow. 
