1915-16.] BOTANICAL SOCIETY OF EDIXBUKGH 57 



B. crispus, Linn, var. granulatus. — Swanbister, 1873. 

 Syme sp. 



*Betula glutinosa, Fr. — Orkney. Syme in Top. Bot, 372. 



*Piiius sylvestris, Linn. — Orkne}' in post-glacial deposits. 

 Niven in Rep. Brit. Assoc., 1901, 840. 



The record of CeratophyUuin demersum, for Loch of 

 Ayre, Kirbister, is an error of Heddle's, his plant being 

 Utricularia vulgaris, as shown b}" the specimen in Col. 

 Johnston's herbarium. U. vulgarity was recorded in Top. 

 Bot., ed. i., 1874, 319, by Boswell. 



* Potamogeton interruptus, Kit. — Loch of Stennis, 1888. 

 Trail sp., and E. F. Linton sp. 



P. pectinatus, Linn. — Kirbister Loch. Syme sp., 1888. 



P. marinus, Linn. = P. filiforinis, Nolte !. — Loch of 

 Birsay and Burn of Hundland. Syme sp. Swanbister, 

 1852. E. F. Bennett sp. 



P. piisillus, Linn. — Loch of Kirbister, Orphir, 1878. 

 W. I. Fortescue sp. 



P. heterophyllus, Schreb. — Loch of Harray, Orkney, 

 1852. W. I. Fortescue sp. A form of the species closely 

 simulating twenty-one American specimens. Peduncles 

 6 inches long, upper floating leaves 1 inch x f inch. 



P. lucens, Linn. — Muckle Water, Rousay, 1890. W. I. 

 Fortescue sp. A large-leaved form simulating P. longi- 

 folius, Gay, but wanting the strict even-sided leaves of that 

 plant and the dark colour. Leaves up to 10-11 inches 

 by 1| inches wide, acute-acuminate, with wavy margins. 

 The only specimens I have seen to approach it are from 

 Siberia. Dr. Augustinowicz. 



*Zannivhellia pjalusirix, Linn. — Kirbister Loch, 1850- 

 Syme. 



Jiincus higlumis, Linn, p. 78. — Must be an error; no 

 authority given, and I can find no record. 



/. triglumis, Linn. — This appears to be an addition to 

 the Flora. It occurs in Shetland !, but not in the O. Hebrides. 



J. compressus, Jacq. — Neill's recoi-d of this would have 

 little weight. Syme knew the plant, yet said he had only 

 seen it in Watson's station in Surrey. ./. comi>ressus is 

 rare in Scotland. Dumfries, Kirkcudbright, Edinburgh, and 

 Dumbarton are the only counties from which I have seen it. 



Luzula pilosa, Willd. — '• Not reported for manj^ years," 



