POLYGONACE A. 
Buckwheats. 
N° 85 
RHEUM PALMATUM. 
PatmateD Ruvsars, Rhubarb. 
Place—Thrace, Scythia, Mongal, on the borders of China 
Quality—Styptic, bitter, nauseous. 
Power—Purging, astringent, stomachic. 
Use—The root in diarrhea, leucorrhcea, debility of the 
stomach, hypochondriasis, and vermifuge, 
_ BOTANICAL ANALYSIS. 
Natural Order. Oleracee.—L. Polygonacee.—J. 
Cees IX. Enneandria. ORDER Hague. 
‘Linn. 8 1, Wl. Sp. Pi. 40, Wands. ‘Med, Bot. 662. Seas 
“Churchill 25. 334. Raf. Med. Flor. ii. 256. U. 8. Dis. 587 
Griff. Med. ge ne a4 El. Mat. Med. ii. 272. Beach. Fam. Bhs: or, . x 
Mat. Med. 129. Wood, Class Book, 473. Lind. Flor. a 
GENUS. RHEUM. 
This name was ingeniously supposed by Linneus to have been derived from péa, 
to flow, because the root causes a discharge of bile. It nevertheless was formed from 
Rua the ancient name of the Volga. 
THE ESSENTIAL CHARACTERS, 
Catyx. Sepals united at base, imbrieate in estivation. 
Corotits. None. 
Stamens. Definite, inserted on the calyx near the base. 
Ovary. Free, with a single erect ovule. Styles or een 
several. 
