108 



432. RHEUM RHAPONTICUM, continued. 



tions on the surface, by the presence of straight lines here and there in 

 groups on the external surface, and by the transversely cut surface 

 showing straight lines radiating from centre to circumference, and by 

 the cortical portion forming a well marked line, also by the holes being 

 well rounded and fresh looking, owing to their having been made with a 

 mouse-tail file. In powder it may be recognised by the test given under 

 East Indian rhubarb. For fig. of these marks, see Goebel und Kunze, 

 Waar., pt. ii., taf. 3, fig. 1 b ; Berg, Anat. Atlas, taf. xi., B. For cultiva- 

 tion, etc., see P. J". [1] , vol. vi., p. 76 ; [2], vol. ix., p. 81. 



/. Root. (Siberian Rhubarb.) Presen ted by Messrs. Hearon, 

 McCulloch & Squire. 



g. Root. (Siberian Rhubarb. Presented by Mr. Faber.) 

 Note. Specimen was grown in Siberia, from seeds obtained in the 

 country where the Eussian rhubarb grows. It was imported into this 

 country in January, 1844. See Per. Mat. Med., vol. ii., pt. i., p. 490. 

 It is probably the produce of Rheum rhaponticum. P. J. [1] , vol. iv., 

 pp. 448, 500. 



h. Root. (Austrian Rhubarb.) 



Note. This appears to be identical in structure with English 

 rhubarb. For fig. of plant, see Bentley arid Trimen, Med. Plants, tab. 214. 



433. RHEUM UNDULATUM, L. 



a. Root. (BucTiarian Rhubarb.) 



Note. This rhubarb is an inferior kind, which does not appear at the 

 present time in English commerce. It is described by Guibourt under 

 the name of Ehubarb de Perse, as it was imported through Persia and 

 Turkey. For description, see Per. Mat. Med., vol. ii., pt. i., p. 489 ; 

 P. J. [2], vol. ix., p. 249; [1], vol. iv., p. 446. This specimen was 

 presented by Mr. Faber, by whom it was received in 1840, from St. 

 Petersburg. 



434. RHEUM WEBBIANUM, Royle. 



a. Root. (Small Himalayan Rhubarb.) 



Note. This specimen was presented to Pereira by Dr. Eoyle. It con- 

 sists of cylindrical brown pieces, somewhat curved or twisted. See Per. 

 Mat. Med., vol. ii. pt. i., p. 492. 



435. RUMEX ACETOSA, L. (Sorrel, Green Sauce.) 



a. Root. 



Note. The leaves have been used as a potherb or salad. They con- 

 tain acid oxalate of potassium, tartaric acid, and tannic acid. See Per. 

 Mat. Med., vol. ii., pt. i., p. 502. This must not be confounded with 

 Woodsorrel, which is Oxalis acetosella, L. 



436. RUMEX HYDEOLAPATHUM, Huds. (Great Water Dock.) 



a. Root, preserved wet. 



Note. The root is astringent and* antiscorbutic. See Per. Mat. Med. , 

 vol. ii., pt. i., p. 503. 



CHENOPODIACE^E. 



437. CHENOPODIUM ANTHELMINTICUM, L. 



a. Fruits. ( Wormseed, Jerusalem Oak.) 



