KEPORT OF THE BOTANICAL EXCHANGE CLUB. 279 



this intermediate variety of anglica with offimialis^ but being without 

 notes made on the fresh pods I do not venture to pronounce 

 judgment on them. Throughout all the varieties of officinalis 

 which I have seen the septum never assumes the narrow strap- 

 shaped elliptical form which it has in the forms of C. anglica 

 which I have examined when fresh." — J. T. Eoswell. 



Lepidium graminifolium, Linn. ** Many plants of it on waste 

 ground by Kew Bridge, Surrey, 1872, and garden, 1874. Root 

 brought from waste ground near Kew Eridge." — H. C. Watson. " The 

 garden-grown specimens show the hexandrous plant, though the 

 stunted form seems to be labelled as the diandrous L. Iheris by some 

 Continental botanists." — J. T. Eoswell. 



Viola Curtisii, Forst. *' Grassy places between the Lizard Light- 

 house and the coast, Cornwall, June, 1872." — W. H. Eeeby. " These 

 specimens seem to be the var. Machaii, commonly known as the Port 

 Marnock violet." — John T. Eoswell. 



Fohjgala oxijptera, Eeich. "This was growing plentifully last June 

 on the chalk downs between Eingwold and St. Margaret's Bay, Kent, 

 in company with P. vulgaris. It appeared to prefer the ground from 

 which turf had been taken a year or so previously." — J. F. Duthie, 

 May, 1875. Also Llansilin, Denbighshire, July 15, 1872. — E. Jones. 

 *' I think these specimens are rightly referred to oxyptera ; but it is a 

 curious elongated form, in habit somewhat resembling the Continental 

 P. comosa, but without the elongate bracts of that form." — John T. 

 Eoswell. 



Sapo7ia/ria officinalis, JAmi.., Y2iY. puherula. " Sandy bank. High- 

 town, Lancashire. The specimen herewith differs from the type, as 

 per 'E. E.,' third edition, and Hooker's * Student's Flora,' in having the 

 sepals and upper portion of the stem decidedly puberulous. All the 

 plants growing on the same sandy bank had the same peculiar feature. 

 The typical glabrous form, however, is to be found about one hundred 

 yards from this spot." — R. Brown, 1872. *' I can find no allusion to 

 this puberulous variety in any of the Continental floras to which I 

 have access." — John T. Eoswell. 



Cerastium holosteoides. Fries. *'A perfect aquatic and rather a 

 variable plant, sometimes almost running into the typical form, C. 

 triviale, but may always be distinguished in its living state by its 

 dark, smooth, shining leaves. Abounds on the tidal banks of the 

 Tay, from Perth down to the brackish water opposite Newburgh, in 

 which it flourishes ; but as the water gets salter it gradually ceases. 

 Found only below high- water mark, where the typical form is not 

 seen. Whether the very marked differences in appearance when in a 

 growing state arise from locality only remains to be proved. The 

 first flowers are more than double the size of the common form." — 

 H. M. Drummond-Hay, 1874. ''This curious form of Cerastium 

 triviale ought to be looked for along the course of tidal rivers, now 

 that its situation is known. I do not know in what sort of place it 

 grows near the Tyne above Redheugh, above Langdon Dale in 

 Northumberland, the only British county besides Perth for which it 

 has been recorded. I am not aware that the very marked difference 

 in the size of the early flowers has been remarked in its other stations. 

 Fries, in ' Sum. Veg. Scand.,' gives a var. sicbacaide as ' glabrius 



