296 POLYGONACE^. 



one behind Osborne Villas, Stoke, 1873. Penny cross. Blaxton. 



Beer Ferrers. Crown Hill, and elsewhere near Knackersknowle. 



IV. Pomplilet. About Saltram. Oreston and Hooe. Crabtree. 



Shalaford. Common Wood, 

 V. Just above the rocks near Revelstoke Church, near Netton and 

 Rowden, about Noss, &c., in that parish. Preston, Newton 

 Ferrers. 

 VI. Waste spot by a quarry near Torr, Kingston, growing with B. 

 conglomeratiis, B. ohtasifolius, and B. o^ispus, 1874. Ivy- 

 bridge. 

 Generally found sparingly at any one spot growmg with other Bumices. 

 First record : Briggs, 1873, in Jour. Bot. ii. N.S. 375. 



606. R. crispus, L. Curled Dock. 



Native ; by roadsides, in waste places, marshes, cultivated ground, 



on damp rocks or among shingle on the coast. Very common, 



June to August, or later. Area general. 



/ Probably the commonest of the Docks. The form with the enlarged 



' petals all tubercled is frequent on tlie coast and by tidal waters. I have 



noted it for all the Districts except iv. In 1874 I found a curious variety 



of crispus by the side of a tidal inlet from the Erme, a little below 



Efford (District vi.). Of it Dr. Boswell writes, " Evidently a form ol 



crispus intermediate between vars. suhcordatus and elongatus. It has 



the lax panicle and elongate branches common to the two varieties." 



(See Bot. Ex. Club Bep. 1872-74, 36, 37.) 



Another peculiar plant from the foot of a cliff near Downderry, collected 

 in 1876, was noticed by him in Beport of the Botanical Exchange Club, 

 1876, as follows : " I think this must be referred to B. crisjnis, var. suh- 

 cordatus, Warren. It appears to fruit too freely to be a hybrid, still, 

 as Mr. Briggs suggests, it may be one between crisjms and prate^isis " 

 (p. 32). 



607. R. Hydrolapathum, Huds. Great Water Dock. 



Native ; in swampy ground in a river valley. Very rare. July, 

 August. 

 c. I. In marshes in the valley of the Seaton, between Hessenford and 

 the coast. 



608. R. maximus, Schreb. 



Native ; on a sandy shore. Very rare. July, August. 

 c. I. A few plants on the sandy shore below a clift" at Downderry, St. 

 Germans, August, 1875 ; three there the succeeding year. 

 Considered by many a variety of B. Hydrolapathum : it is the var. 

 latifolius of Borrer. I have placed it as a species here in order to fall in 



