^0§ TRiANDRiA digyntA.' Pamcuml 



flowered. Inner valve of the calyces vaulted ; corol three-valved. 

 Seed, half round, smooth. 



Grows on pasture ground, under the shade of trees, 8cc. 



Culms creeping, filiform, from one to two feet long, with a few 

 inches of the extremities erect. — Leaves lanceolate, soft, a little 

 <3owny ; sheaths ciliate, with a stipule-like process.— Pawic/e halved, 

 oblong, smooth, composed of from three to ten ramous branchlets, 

 rising on one side only when tiie plant is small; pedicels two-flow- 

 ered. Partial pedicels uncnpial. — Calyx, inner valve cucuUate, ob- 

 tuse ; all the valves striated and hany. — Carol, with a neuter, but 

 small valve. — Seed smooth, obtusely and obliquely three-sided. 



Sg. P. patens. Linn. Sp. PL ed. Willd. i. 352. 



C<</mA creeping. Leaves witli a cordate base. Panicle oblong. 

 Pedicels one-flowered. The three-valvelets of the calyces equal. 

 Flowers polygamous. Seed, flat on one side, smooth. 



A small, delicate, creeping species ; it delights in shady pasture 

 ground. 



Culms like those of P. trigonum.— Leaves broad, with a cordate 

 base, from thence tapering to a flne point, downy ; sheaths hairy, 

 their mouths want the stipule-like process.— Pfl«/c/e small, about 

 one and a half or two inches long, oval, ramous; ramifications 

 smooth.— Flowers oval, solitary.— Ca/y.r, two-flowered, the three 

 valves are nearly equal, all smooth but striated ; the inner one 

 appearing more like a second valve to the male floret than one of the 

 calyx, and the more so as it drops off with the seed, leaving the two 

 exterior ones behind. — Corol, one male, or sometimes one neuter, 

 and one hermaphrodite. — Seed oval, smooth. 



•40, P. hrevifolium. Linn Sp. PL ed. Willd. i. ^53. 



Culms creeping. Leaves lanceolate, cordate. Panicle ovate, very 

 ramous, partly hid in t\v- sheath of the exterior leaf, second valve- 

 let of the calyces bearded ; corol three-valved. Seed ovate, smooth. 



Grows, with the two preceding species on shaded pasture ground 

 and is verv much like them. 



