198 Hardy on the Flora of Berwickshire. 



15. Veronica Chamadrys. In barren spots, fleshy green nodo- 

 sities of irregular shapes arise in the substance of the trailing 

 stalks. Several of these retain their connection till spring, 

 when they take root, and are converted into separate plants. 



16. V. Buxbaumii. This has appeared this season in a new 

 grass field at Penmanshiel, occupying about thirty square feet, 

 and nearly confined to one spot. 



17. Teucrium Scorodonia. There is a variety with the leaves 

 crispate, and more than usually wrinkled. 



18. Calamintha Acinos. A few specimens have appeared this 

 season in a field at Penmanshiel. 



19. Galeopsis Tetrahit. There is a diseased condition of this 

 plant not unfrequent, which I examined this autumn. The 

 stem twists itself into a curve, and the florets sit close together, 

 are pale-coloured, and little developed. On opening the part of 

 the stem producing the florets, the interior is found to be of a 

 loose spongy texture, of a yellowish hue, and verging to a state 

 of decay. Among the vegetable matter I observed masses of a 

 white substance resembling hairs, which at length by their 

 movements discovered themselves to be vibriones. The species 

 is very similar to that occurring in the diseased stems of the 

 Trifoiium pratense first observed by Mr. Murcott ; and it may 

 be remarked, that the structure of the diseased portions of the 

 hemp-nettle and the red clover also exhibit a mutual likeness. 

 I could detect no vibriones in other parts of the stem, in which 

 the green matter under the bark was concreted into granules, a 

 circumstance that also takes place in the small purplish specks 

 formed upon the foliage of some grasses by Vibrio Graminis. 

 I have not paid sufficient attention to the subject to be enabled 

 to state whether the vibriones are the cause of the malady in 

 the Trifoiium and Galeopsis; but that they are not always mere 

 agents of decay, like the Rhabdites tuberculorum of putrefying 

 potatoes and turnips, appears from V. Tritici and V. Graminis 

 originating diseases in structures otherwise sound. 



20. Scutellaria galericulata. The locality indicated in ' Nat. 

 Hist. East. Bord.' i. p. 164, has been destroyed by the railway 

 operations ; but the plant occurs by the side of the Pease Burn, 

 a short way below the forester's house. Solanum Dulcamara 

 also still survives there. 



21. Trientalis europeea. This still occurs sparingly on Pen- 

 manshiel Moor ; and is scattered over the moor between Buskin 

 Burn and Laverock Law. It also grows at the southern end of 

 the fir plantation at Blackburn. The bog wherein it grew near 

 Blackburn Wood is now cultivated. 



22. Finns sylvestris. Hitherto there has been no record of 

 pine-trees being imbedded in any of the Berwickshire peat- 



