386 POLYGONACEE. (BUCKWHEAT FAMILY.) 
long as the slender recurved pedicels, one or all more or less prominently grain- 
bearing. (R. divaricatus, Ell.) — Waste ground, around dwellings. Introduced, 
June -Aug. ),— Stem 29 —3? high. Lowest leaves 19 - 11? long, 6' - 9! wide, 
slightly crenate, and wavy on the margins. d 
6. R. pulcher, L. Branches rigid, spreading; lowest leaves cordate- 
oblong, somewhat fiddle-shaped, the upper lanceolate, acute; whorls remote; 
valves longer than the thick pedicels, ovate-oblong, rigid, strongly toothed, more 
or less prominently grain-bearing. — Around Charleston, Elliott. Introduced. 
June and July. - ; 
7. R. maritimus, L. Pubescent; stem low, diffusely branched; leaves 
lanceolate, wavy-margined, the lower ones somewhat cordate or hastate at the 
base, the upper linear; whorls compactly crowded in leafy spikes; valves small, 
bristly on the margins, nearly covered by the large grain. (R. persicarioides, L.) 
— Sea-shores, North Carolina, and northward. Aug. and Sept. @— Stems 
6/—12'high. Spikes yellowish. 
* * Flowers diecious. Herbs with sour juice. 
+ Calyx not enlarged in fruit. : 
8. R. Acetosella, L. Root creeping; stems low, erect or ascending; 
leaves oblong, lanceolate, or linear, entire or hastate-lobed ; panicle slender, leaf 
less; whorls scattered, few-flowered; valves ovate, grainless, appressed to the 
achenium. — Old fields and sterile soil, common. June and July. j— Stems 
6'-12' long. Leaves and flowers small. 
+ + Inner calyz-lobes dilated in fruit. T. 
9. R. hastatulus, Baldw. Stems clustered, erect ; leaves glaucous, lance 
olate or linear, or the lowest oblong, entire or hastate-lobed ; whorls few-flowered, 
scattered, or the upper ones crowded; valves round-cordate, entire, membrana 
ceous, reticulated, red or white, grainless. — Dry sands, along the coast And 
the middle districts, Florida to South Carolina. May and June. — Stem 19-17 
high. Leaves 1’ -2 long, the upper ones mostly entire. 
2. POLYGONELLA, Michx. 
Flowers perfect or diceciously polygamous. ‘Calyx corolla-like, deeply s-parted 
or 5-sepalous ; the three inner sepals mostly enlarging and enclosing the 
achenium, glandless. Stamens 8: anthers roundish. Stigmas 3, capitate. 
bryo straight, or nearly so, in the centre, or at one side of the mealy albumen. 
. Smooth and commonly glaucous herbs or shrubs, with slender branching Sem» 
small alternate leaves, and small flowers in spiked racemes. — Sheaths sm 
s imbricated, top-shaped, mostly 1-flowered. Pedicels nodding in ens ‘i 
$1. Evrotycoxerta. Filaments all alike, subulate: stigmas nearly sess 
Flowers diceciously polygamous: embryo in the centre of the albumen: ~ 
parvi: Michx. Shrubby and diffusely branched at the DP v 
