POLYGONAGÉES. 389 
lateralis cotyledonibus radicula longioribus. — Herba perennis parce 
ramosa; foliis basilaribus et alternis; ocrea membranacea; cymis 
secus ramos inflorescentiæ compositæ dissitis. (Orbis utriusque reg. 
arct., subarct. et mont.) 
IT. POLYGONEÆ. 
9. Polygonum T.— Flores hermaphroditi v. polygami; receptaculo 
cupulari; perianthi foliolis 4, 5 (sæpe coloratis), æqualibus v. inæ- 
qualibus, imbricatis. Stamina 6-8 (sæpe 7), inæqualia, nunc pauciora, 
cum perianthio inserta ; filamentis basi sæpe dilatatis, plerumque cum 
disci plus minus perigyni dentibus alternantibus; antheris varis; 
loculis parallelis distinctis, connectivo plus minus dilatato sejunctis. 
ermen 3-gonum v. compressum ; stylo plus minus alte in ramos 9, 
3 diviso; ramis apice incrassato integris v. varie dilatatis. Ovulum 
orthotropum basilare. Fructus 3-gonus compressus; angulis plus 
minus prominulis ; aut perianthio obtectus, aut apice nudus; pericarpio 
plus minus crasso duroque. Seminis erecti embryo excentricus v. 
omnino lateralis, incumbenti- v. accumbenti-curvatus; cotyledonibus 
radicula brevioribus v. longioribus, angustis v. oblongis, nunc raro 
(Fagopyrum) latissimis contorto-plioôtis radiculamque involventibus. 
— Herbæ, nunc suffrutescentes; habitu vario; ramis prostratis, 
erectis, nunc volubilibus v. flüitantibus; foliis alternis; ocrea varia ; 
floribus ad folia v. ad bracteas spicæ terminalis eymosis v. glomerulatis; 
pedicellis articulatis. (Orbis utriusque reg. calid., temp. et frig.) — 
Vid. p.372 
6. Polygonella Micax?. — Flores fere Polygoni, polygami; 
Sepalis 5, inæqualibus : exterioribus 2, 3, minoribus, demum re- 
flexis; interioribus autem 2, 3, circa fructum erectis appressis. 
Stamina sæpius 8; filamentis nunc basi dilatatis v. lateraliter 2-den- 
latis v. 2-auriculatis. Styli 3, apice capitato-stigmatosi. Fructus 
crustaceus, 3-gonus; embryone recto v. arcuato excentrico, nunc 
1. Spec. 1, 0. digyna Cawrn., Rum., 155, . FL bor.-amer., HE, 240. mme in DC. 
L. 3, fig. 3. — Hook., fcon., t. 483. — B. H., pra. XIV, 79 (part). B. H., Gen, Ill, 
Gen à ue 34. — Rumex PAR L., Spée , 480 . 14. — Lyonia Raï, sm ( 
k Me 
m digynum "à ns — Lapathum hs 11, hex. 5 (non ELL.). — Stopinaca RAFIN. 
nu à Lamk, F1. fr., LU, 6; Z41., t.271, ge g- (ex ENbL..). — Gonopyrum C.-A. MEy., in Mém 
— Acetosa digyna Mi. Sons 3 sapi ida B. B Acad. Pétersb., sér. 6, VI, 144. 
