810 ELEMENTS OF MATERIA MEDICA.

(Guibourt, mpracit.) This rhubarb is a very fair imitation of that f f0 ’China ; but is distinguished by its reddish tint, its different o ^(common to it, to R. undulatum, and R. rhaponticum), its closeradiated marbling, its not tinging the saliva, and its not grating unthe teeth.

Fig. 170.

Fig. 171.

Rheum palmutum.

Rheum compactum.

wm

isKii 'A

:llh>

Fig. 172.

4. Rheum Emodi, Wallich; R. australe, Don .—Leaves cordate, aC ft,dull green, but little wavy, flattish, very much wrinkled, distinctly r< \ ° uS

with coarse short hairs on each side* ^ c .of the base distinctly open, notshaped, but diverging at an obtusewith the lobes nearly turned up"Petioles very rough, rounded-angular,rowed ; with the upper side depresse ’ c \idered by an elevated edge, and very ^narrower at the upper than the 1 °"’ e * jp-(Lindley).—Perennial. Grows on 1 * aI1 JIts stalks make excellent tar *

Rheum Emodi.

malayas.

puddings. * of

5. Rheum Webbianum (Royle, *the Bot. of the Him. Mountains, p- ^rji u stT-

6. Rheum spiciforme (Royle, •*

p. 318). 3l 0).

7 . Rheum Moorcroftianum (Royle, p- jj.These three are Himalayan specif

Emodi and Webbianum furnish Himalayan rhubarb, whose propertivery different to those of officinal rhubarb. T?uX' lie

8. R. Rhaponticum, Linn.—Grows in Thrace ; borders of the E ‘ ^north of the Caspian ; Siberia , &c. Cultivated in this c 0U f„Vals°

sea

Cultivated ;

Its roots P

OS'

the leaf-stalks, which are used for tarts and puddings,in France, and yields part of the French rhubarb.

9. R. crassinervium, Fischer.—Habitation unknown, ns 1 e ] ge a,sess, according to Mr. Anderson, of the Apothecaries’ Garden , E

the colour and odour of Turkey rhubarb (Lindley, FI. Med.) j0iU e

10. R. leucorrhizon, Pallas; R. nanum, Sievers.—Said to ytelor Imperial rhubarb.