DIADELPHIA DECANDRIA. 
213 
8. Rqtundifolium. 
H. prostratum, hir- 
sutum; foliis ternatis, 
orbiculatis ; stipulis 
cordatis, reflexis ; ra- 
cemis axillaribus et 
paniculato— terminali- 
bus,; lomenti articuSis 
subrhomboideis. 
Mich. 2. p. 72. Pursh 2. p. 484. 
Prostrate, hirsute ; 
leaves ternate, orbicu- 
lar stipules cordate, 
reflected; racemes ax- 
illary, and paniculate 
at the summit ; joints 
of the pod nearly 
rhomboidal. 
Stem 2 — 3 feet loos - , geniculate, branching. Leaves a little scabrous, 
and villous on both surfaces, paler underneath, common petiole from 1 — 
1 1-2 inches long. Stipules cordate and acuminate, persistent. Flow- 
ers sparingly scaPered. on the racemes, common peduncle 6 — 18 inches 
long. Calyx 4-cleft, the lower segment prolonged. Corolla pale pur- 
ple, nearly white. Lomentum, 3 — 4 jointed. Joints nearly rhomboidal, 
reticulate, very pubescent along the margins. Varies sometimes with 
leaves ovate, slightly heart-shaped at base. 
Grows in dry fertile soils, 
p lowers August— September. 
9. Rracteosum. Mich. 
H. glabrum ; foliis 
ternatis, ovatis, acu- 
minatis acutissimis- 
que ; stipulis oblique 
ovatis ; panicula ter- 
minali ; bracteis ma- 
jusculis, ovatis, longe 
acuminatis ; lomenti 
articulis subtriangu- 
laribus. 
Glabrous ; leaves 
ternate, ovate, acumi- 
nate and very acute ; 
stipules obliquely o- 
vate; panicle terminal: 
bracteas large, ovate, 
with a long acumina- 
tion; joints of the pod 
nearly triangular. 
Mich. 2. p. 73. Pursh 2. p. 482. 
H. Cuspidatum. Sp. pi. 3. p. 1198. Pursh 2 p.483. 
Plukenet t. 308. f. 5. 
Stem 3 — 5 feet high, erect and decumbent, very glabrous below, a little 
Scabrous neai the summit. Leaves tapering to a very long and acute 
$S>int ? sometimes dilate, and sprinkled with hairs along the veins, com- 
