650 Dr Graham's List of new or rare British Plants, 



Ophioglossum vulgatum Dalmeny Woods. Mr James Macnab. This 



plant, which is not common in Scotland, and was considered very rare 

 near Edinburgh, was found to be profuse in the above station by Mr James 

 Macnab several years ago, and has been gathered every season since. 



Orchis pyramidalis. — Frith of Forth on the Fife side. Dr Knapp. East side 

 of the RIull of Galloway. Dr Graham. Near Pprtpatrick. Dr Balfour. 

 Last year Dr Knapp added this plant to the Flora Scotica. It was 

 found by Dr Balfour and myself this season. 



Osmunda regalis Near Culross. Rev. A. Robertson. In Scotland, this 



plant had only been found on the west coast, till last year, when it was 

 first observed in the above station. 



Polypogon Monspeliensis Ballast heaps, St Davids. Mr Wallich. Cer- 



tainly introduced. 



Potamogeton prrelongus River Liman, near the Bay, and in Rescobie Loch, 



Forfarshire. Near Kirkcaldy. In all these stations, it has been observed 

 by Mr Gilbert Macnab. I have seen it in other places, and believe it 

 is not uncommon. 



Primula elatior, variety with single-flowered scapes and umbels growing 

 from the same root. — Neighbourhood of North Queensfcrry. Rev. A. 

 Robertson. I have found this interesting variety, first sent to me by 

 Mr Robertson, in considerable quantity, along several miles of the coast. 

 By far the most common species of Primula for many miles along both 

 sides of the Frith of Forth is P. veris. It is most profuse, and here and 

 there P. vulgaris occurs. It is only where the latter appears, as far as I 

 Lave been able to observe, that we have P. elatior, so that I feel assured 

 it ought to be considered a modification of P. vulgaris. Whether this 

 modification arises from the introduction of pollen from P. veris, is another 

 question. I think it occurs without this cause, and my opinion is formed 

 partly from the appearance of the variety \vhich I now notice, where the 

 ordinary forms of P. vulgaris and P. elatior grow from the same root 

 (though this is scarcely consistent with the idea of the organization being 

 altered by an admixture of kinds), and likewise from observing that the 

 difference of form which constitutes the distinction betwixt P. vulgaris 

 and P. elatior, occurs among native specimens of P. Scotica, though in the 

 habitat of that species there is no plant bj^ which it could possibly be 

 fertilized, so as to produce a mule, differing in no respect whatever from 

 the specific form, except in the suppression of the common footstalk. 

 The observations of Professor Henslow confirm this view, and that of 

 Mr Talbot, seems to me to be easily reconciled with it. 



Ranunculus lingua Otterston Loch, Fife. Bcguise Loch, Forfarshire. Dr 



Balfour. Mr G. Macnab. 



RottboUia incurvata. — Ballast heaps, St David's. ]Mr Wallich. The slen- 

 der, erect form (R. filiformis) has long been known in several sta- 

 tions on the Frith of J 'orth. ]Mr Wallich picked the recurved form ; 

 afterwards I received very fine specimens from Mr Robertson, and since 

 then I have seen it at the station. I believe it to have been introduced. 



Sasifraga Hirculus. — About three miles beyond Blackshiels. Mr Lloyd. This 

 is the most northern station in Britain for this plant, and was discovered 



