78 HEXANDRIA TRIGYN1A. [CI. 6. 



HEXANDRIA DIGYN1A. 



203. OXYRIA. Mountain-sorrel. 



I. O. reniformis, Rumex digynus, 13. 910. (.Kidney-shaped M.) 

 Near mountain rills. If. 6. Stem erect, 8 in. L. kidney -shaped, 

 abrupt. 



HEXANDRIA TRIGYNIA. 



204. RuMEX. Dock, and Sorrel. 

 * Flowers all perfect. 



1. R. sanguineus, 22. 1533. (Bloody- veined D.) Petals permanent, 



entire, oblong ; one of them at least bearing a tubercle. Leaves 

 lanceolate ; somewhat heart-shaped. 

 Shady pi. and waste gr. 2£. 7. Tubercle red. Ribs of the leaves 

 reddish ; in £. green. 

 *1. R. pratensis, Suppl. 2757. (Meadow D.) Petals permanent, 

 unequal, toothed at the base, with an entire triangular point ; 

 one principally with a tubercle. Leaves oblong-lanceolate, 

 wavy. Clusters nearly leafless. Whorls distinct. 

 Marshes about the Thames and in Suss. If. 6, 7. Allied to the 

 following, Clusters less crowded; enlarged valves of cor. un- 

 equal and more toothed ; leaves broader and less curled. 



2. R. crispus. 28. 1998. (Curled D.) Petals permanent, ovate, en- 



tire ; each bearing a tubercle. Leaves lanceolate, wavy, acute. 

 Past, and waste gr. If. 6, 7. Clust. of drooping pale green flowers. 

 *2. R. aqudticus, Suppl. 2698. (Grainless Water D.) Petals per- 

 manent, broadly cordate, reticulated, without tubercles. Leaves 

 lanceolate ; the lower ones cordate-oblong, crisped and w r aved. 

 Whorls crowded, mostly leafless. 

 Moist places near Ayr. If. 7. Enlarged petals quite destitute of 

 tubercles. Lower leaves a foot long. 



3. R. acutus, II. 724. (Sharp D.) Petals permanent, oblong, ob- 



scurely toothed ; each bearing a tubercle. Leaves oblong-heart- 

 shaped, pointed. Clusters leafy. 



Waste watery pi. If . 7. Clust. spreading, elongated. Seed small. 

 *3. R. alpinus, Suppl. 2694. (Alpine D. or Monk's Rhubarb.) 

 Petals permanent, cordate, reticulated, obscurely toothed at the 

 margin ; one bearing a small grain. Leaves broadly heart- 

 shaped, ample. Whorls leafless, crowded. 



River banks and road-sides, Scotl , indigenous ? If. 7. L. a span 

 broad, heart-shaped, very obtuse, wrinkled and strongly veined. 



4. R. obtusifolius, 28. 1999. (Broad-leaved D.) Petals permanent, 



toothed ; one principally bearing a tubercle. Radical leaves 

 heart-shaped, obtuse. Stem roughish. 

 Waste gr. If. . 7, 8. Clust. scarcely leafy. Teeth of the pet. aicl-sh. 



