22 The Scottish Naturalist. 



whom I sent it together with root-leaves of C. radicans Forst. (from 

 Mr. A. Bennett's garden) for comparison, replies that Fries' plant 

 from Finmark appears to be the same as mine, which may possibly 

 be a distinct species. I have the plant in cultivation, and hope to 

 observe it further. I may add that we have a small prostrate 

 form of C. palustris in Surrey which was at one time thought to 

 be the var. minor, but although I have had it growing in moist 

 peat for some years, and have pegged down the stems, I cannot 

 induce it to root at the nodes. 



Cakile maritima Scop. var. integrifolia Hornem. Y. Sandy 

 shore at Mid Yell Voe. Probably common in Scotland ? I have 

 it from Pettycur, Fife (by R. McKay), but have not seen it in the 

 south. 



Cardamine pratensis L. var. dentata Schult. U. Near 



Baltasound and Haroldswick. N. Streams by the south side of 

 Ronas Voe. 



* Cochlearia groenlandica L. N. Coast near Ollaberry. 

 Under this plant Dr. Lange quotes (Fl. Groenl., p. 34 t) the 

 Eng. Bat., Plate No. 2403 ; but in Eng. Bot., Ed. III., this plate 

 represents our C. alpina, according to Syme not the true C. groen- 

 landica L. Dr. Lange probably quotes this plate largely on 

 account of the pods being represented- quite veinless ; but those 

 of C. officinalis are also represented as veinless, and the veins 

 may have been similarly omitted in the other plate. At all events 

 it is satisfactory to be able to record this plant on the high autho- 

 rity of Dr. Lange. Another form occurs U. Serpentine hills 

 about Baltasound. N. Hills near Ollaberry. This plant has a 

 strongly veined pod, anil Dr. Lange reports " seems a diminutive 

 form of 0. officinalis, or a distinct species." This seems to me 

 our Scotch C. alpina ; which differs much from a plant so labelled 

 from Snowdon. There is evidently room for further work in this 

 genus ; it was rather too late for them in Shetland. C. danica L. 

 was not seen. 



Draba incana L. The usual form in Unst is the var. con- 

 torted (Ehrh.). Some specimens have a slightly hairy pod, and 

 represent the var. confusa (Ehrh.). A more distinct form is the 

 \2x.flexu0sa Lange, which has slender, flexuous stems, usually 

 several from the same root. A few specimens of this, or a form 

 very close to it, were gathered near the Wick of Hagdale, but the 



tin the distribution given (1. c.) Dr. Lange does not include Great Britain. 



