OCTANDRIA TRIGYNIA. Polygonum. 271 
*** Shica confertiflora. 
.. 9. P. caule simplici monostachyo, foliis ellipticis planis pe- — Zistortoides. 
tiolatis, bracteis unifloris 2-3-valvis. 
In low grounds on the banks of the, Missouri, called 
Quamash-flats. M. Lewis. M. June. v.s. Flowers 
white tinged with red. 
Caulis teres, glaber. Folia elliptico-oblonga, in petio- 
Ium decurrentia, integerrinae plana, utringue glabra, 
. subtus glauca, superiora linearia, sessilia, Spica ‘ob- - 
longa. Bractec membranacee, uniflore, 2—3-valves ; 
valvula exterior subrotunda, acuminata, carinata, 
Calyx subinfundibuliformis : laciniis oblongis acutis. 
Filamenta 7—8. corolla longiora, Styli 3. 
10. P. caule simplici monostachyo, foliis lanceolato-lineari- viviparum. 
bus glabris margine revolutis, spica lineari, bracteis B, subacaule. 
ovatis acuminatis. i 
In Canada, Y. Jne, July. v. s. in Herb. Lambert. 
This almost stemless variety I have seen in dried spe- 
cimens coming from Lower Canada. The specimen 
in the collection of A. B. Lambert, Esq. came from 
Labrador. 
. 11. P. floribus 5-andris semi-2-gynis, spica cylindracea, coccineum. 
_ ochreis truncatis glabris, foliis ovatis, Willd. enum. 
420. 
P.amphibium. Mich. fl. amer. 1, p. 240. 
&. P. foliis ovato-ellipticis obtusis. - 1 : -— aquaticum; 
B. P. foliis ovato-oblongis acuminatis. P. Bistorta. Walt, terrestre. 
Jt car. 121? 
&, In lakes and ponds: Canada to Pensylvania, 8. In 
overflowed places on the Ohio and Mississippi. 2%. 
July, Aug. v.v. Flowers dark red. 
V2. P. floribus 8-andris semdigynis, spicis oblongis, pedun- — pensylvari- 
culis hispidis, foliis lanceolatis, ochreis glabris nudis- cum. 
- que, caule tumide-geniculato.—Willd. sp. pl. 2. 
p. 448. z : 
On the edge of ponds and ditches, iu overflowed 
... grounds ; common: New York to Carolina, and prin- 
. €ipally in the western counties, ©. June—Aug. v. v. 
wers large, rose-coloured. : in 
J3. P. floribus G-andris semi-2-gynis, spicis ovato-oblongis Persicaria. 
erectis, pedunculis lævibus, foliis lanceolatis, ochreis 
glabriusculis apice ciliatis.— Willd. sp. pl 2. p. 446. 
Icon. F$, dan. 702, Engl Lot, 750. od Mae 
