254 OCTAKDEIA. TRIGYNIA. 



Order II DIGYNIA. 



!69. CHRYSOSPLENIUM. L. (Golden Saxi- 

 frairo.) 



Calix snpcrior 4 or 5-cleft, coloured. Corolla 

 none. Capsule birostrate, i-cclled, many-seeded. 



Herbaceous, suhaquatic, leaves simple, thickish, oppo- 

 site or alternate; flowevs small sessile, often terminal and 

 surrounded with floral leaves, mostly 4-cleft and oclan- 

 drous, the primary flower sometimes decandrous. 



Species. 1. C. oppositifoliv.m. Obs. Leaves both oppo- 

 site nnd alternate. Stamina seated in the indentioi's of 

 the margined and sinnated receptacle, indentions 8. — A 

 genus probably of a single species indig-enous to Europe 

 and America. 



Order IIL—TRIGYNIA. 



370. POLYGONUM. /.. (Persicaria, Buck- 

 wheat, 6cc,) 



Calix 5-parted, petaloid, persistent. Seed 1, 

 superior, 3-sided, covered by the connivent ca- 

 lix. (The number of the stamina and styles un- 

 certain.) 



A polymorphous and divided genus? nearly all the 

 species herbaceous; leaves alternate; linear, spathulate, 

 lanceolate, ovate, cordate or sag-ittate, sheathing at the 

 base, sheathes or ochreic cylindric, embracing the stem; 

 flowers axillary, or spiked, in a few species disposed in 

 paniculatcd racemes, color reddish or white. Peduncles 

 articulated, as in EHogomnn and perhaps in other genera 

 of Polygoiiece] Stems and branches, often nodose, but, in* 

 articulate. 



§ I, Ochrete, manyfioiveredi (3 — 5.) 



Species 1. P. uviadave, flowers octandrous, styles 3, 

 peduncles shorter tli^n the flowers, seeds granulated. 

 tc. aiigiistij'olium. Mich. 1. p. 237, leaves small, Janceolate- 

 oblong, acute. /3. latifoUum, L-aves broad oval, obtuse, 

 flowers pentandrous, stem adscendent. 2 *glmicvm Flow- 

 ers octahdrous, styles o; stem diflruse, piostratc, leaves 

 ovate-lanceolate, tiuck and glaucous; pediceJls as long as 

 tJie flowers; seeds acuteangular, acuminate, even, and 



