254, OCTANDRIA. TRIGYNIA, 
-Orner I1.—DIGYNIA. 
869. CHRYSOSPLENIUM. LZ. (Golden Saxi- 
frage.) 
Calix superior 4 or 5-cleft, coloured. Corolla 
_ none. Capsule birostrate, 1-celled, many-seeded. 
Herbaceous, subaquatic, leaves simple, thickish, oppo- 
site or alternate; flowers small sessile, often terminal and 
surrounded with floral leaves, mostly 4-cleft and octan- 
_drous, the primary flawer sometimes decandrous. 
Species. 1. C, appositifolium. Oxs. Leaves both oppo- 
site and alternate. Stamina seated in the indentions of 
_ the margined and sinuated receptacle, indentions 8—A 
“genus probably of a single species indigenous to Europe 
and America. ; 
i 
Orper IIl.—TRIGYNIA. 
370. POLYGONUM. L. (Persicaria, Buck- 
wheat, &c.) 
Calix 5-parted, petaloid, persistent. Seed 1, ~ 
superior, 5-sided, covered by the connivent ca- 
lix. (The number of the stamina and styles un- 
A polymorphous and divided genus? nearly all the 
Species herbaceous; leaves alternate; linear, spathulate, 
lanceolate, ovate, cordate or sagittate, sheathing at the 
base, sheathes or ochrez evlindric, embracing the stem; 
flowers axillary, or spiked, in a few species disposed in 
paniculated racemes, color reddish or white. Peduncles 
articulated, as in Eriogenum and perhaps in other genera 
- 0fPolygonee! Stems and branches, often nodose, but in- 
sai § 1. Ochree, manyflowered, (3—5.) 
- Srecres. 1.P. uviculare, fowers octandrous, styles 3, 
peduncles shorter than the flowers, seeds granulated. 
#. angustifolium. Mich. 1. p. 237, leaves smail, lanceolate- 
oblong, acute. B. latifolium, leavess.broad oval, obtuse, 
flowers pentandrous, stem adscendent. 2 *glaucum Flow- 
ers octandrous, styles 3; stem diffuse, prostrate, leaves 
ovate-lanceolate, thick and glau ; pedicells as long as 
the flowers; seeds acuteangular, acuminate, even, and =~ 
