ENNEANDRIA TRIGYNIA,. 
{Rig eet 
RHEUM. Gen. pl. 506, 
Cal, 0. Cor. 6-fida, perfiftens. Sem. 1, triquetrum. 
1, R. foliis obtufis glabris: venis fubtus pilofiufculis ; 
finu bafeos dilatato, petiolis fupra fulcatis margine 
rotundatis, 
Rheum Rhaponticum. Sp. pi. 531. 
Rhapontic Rhubarb, 
4t 
ticums. 
Nat. of Afia,. 
Cult, 1629, by Mr. Joba Parkinfon, eae fated: : 
. 485. f. 3. : 
Fl. May. Hots 
2.R. foliis fubvillofis undulatis: finu bafeos dilatato, 
petiolis fupra planis margine acutis, 
Rheum undulatum. Sp. pl. 531. 
Rheum Rhabarbarum. Sy/. veget. 385. 
Waved-leav’d Rhubarb. 3 
Nat. of China and Siberia. , 
Cult. 1759, by Mr. Ph. Miller. AGU. dif. elit. n. 2 
Fi. May. H. 4. 
3. R. foliis palmatis acuminatis fcabriufculis: finu bafeos 
_ dilatato, petiolis fupra obfolete fulcatis margine ro- 
 tundatis. 
Rheum palmatum. Sp. pl. 531. 
Officinal Rhubarb. 
Nat. of China. 
Cult. 1768, by -Mr. Philip Miller. A4i/l. did? edit. 8. ae 
H. 4. i ea 
#71. April and aah 
undula- 
tum, 
palma- 
