POLYGONACEiE. 



707 



Inner perianth-segments toothed on the edge, one at least 

 of the teeth ending in a fine point. 

 Panicle erect. Pedicels longer than the perianth . . 3. Broad D. 

 Panicle very spreading. Pedicels shorter than the 

 fruiting perianth. 

 Leaves chiefly radical. Pedicels thickened. Teeth 

 • of the perianth-segments stiff and short .... 7. Fiddle D. 



Panicle leafy. Perianths densely clustered with long 



fine teeth to the segments 8. Golden D. 



Leaves, at least the lower ones, hastate (with acute auricles). 

 Flowers mostly unisexual. (Sokrels.) 

 Leaves oblong or broadly lanceolate. Inner segments of 



the fruiting perianth enlarged and orbicular . . . . 9. Sorrel D. 

 Leaves narrow-lanceolate or linear. Inner segments of 



the fruiting perianth not enlarged 10. Sheep-sorrel D. 



Besides the above, the alpine D. (B. alpinus, Eng. Bot. Suppl. 

 t. 2694), from the mountains of continental Europe, formerly culti- 

 vated for its root, a very broad-leaved species of true Dock, with entire, 

 grainless perianth-segments, and the French sorrel D. (JR. scutatus), also 

 a common plant in Continental mountains, sometimes cultivated as a 

 Sorrel, have both been met with occasionally in Scotland or northern 

 England, near the gardens from which they had escaped, but neither of 

 them appears to be really established in Britain. 



1. Grainless Dock. Rumex aquaticus, Linn. (Fig. 850.) 

 (Eng. Bot. Suppl. t. 2698.) 



Closely resembles the larger and g /k. 



denser- flowered forms of the curled D., mk RsJl-\ 



of which it maybe a luxuriant variety. 1^ y-K\s\ vH '' W 7/ 



The leaves are usually not so much ffi vvlAs {LiMI'Ik 



crisped, sometimes nearly flat, and often 



9 or 10 inches long and full 3 inches .^^^v^ffSI^SX ^ff 

 broad ; the panicle long and much 

 crowded ; but the chief difference is in 

 the inner segments of the fruiting pe- 

 rianth, which are of the same shape, 

 but have no tubercle, although a slight 

 thickening of the midrib may be some- ^p^^ 



times observed. 



In rather rich and moist situations, A c^^^^SSN^i^S^ 

 in northern and Arctic Europe, Asia, ^^^5^v!/^^^^8^Wlf 

 and America, and in the mountains of 

 central Europe. In Britain, chiefly in 

 Scotland and the north of England. 

 Fl. summer. * Fig. 850. 



