CONTRIBUTIONS TOWARD A FLORA OF CAITHNESS 39 



J. NANA, Willd. Duncansbay Head, Herb. Lambert in Herb. Kew!. 

 ORCHIS MASCULA, L. Thurso River, R. Dick. 



O. ERICETORUM, Linton. Isle of Stroma, Miss Geldart ; Wick, 

 Bilbster, E. S. Marshall. 



O. INCARNATA, L., var. ANGUSTIFOLIA, Bab. Near Wick, E. S. 

 Marshall, sp. 



O. LATIFOLIA, L., var. BREVIFOLIA, Reichb. Swampy pasture about 

 a mile N. of Bilbster Station ; just like the plant of S. E. 

 Ireland. E. S. Marshall, sp. 



HABENARIA CONOPSEA, Benth. Scrabster, W. F. Miller. 



[H. CHLOROLEUCA, Ridley. In Strath Halladale (W. Sutherland) 

 near the bridge, and not far from the Reay Burn. Dr. Ward. 

 Will probably be found on the Caithness side.] 



PARIS QUADRIFOLIA, L. Scouthall, J. Grant, sp. 



SCILLA VERNA, Huds. First record as a Caithness plant (Lightfoot's 

 "Flora Scotica," 181, 1777, under the name of S. bifolia). 



IRIS PSEUDACORUS, L. Brough to Dunnet, " Scot. Alp. Club," 

 1889; Lysa, J. Grant. 



POTAMOGETON ALPINUS, Balb. Loch Yarehouse, J. Grant, sp. 



P. NITENS, Weber. Mill Dam, Thurso, Dr. Shoolbred. 



P. CRISPUS, L. With the last. 



P. PECTINATUS, L. Loch Wester and old quarries, J. Grant. 



P. FILIFORMIS, Pers. Yarrows Loch, Dr. Ward, sp. ; Wick River, 

 J. Grant, sp. 



JUNCUS BALTICUS, Willd. Between Ackergill Tower and Water of 

 Wester, J. Grant. 



J. SUPINUS, Mcench. Watten Loch, D. Lillie, sp. 



J. ACUTIFLORUS, Ehrh. Watten Loch, D. Lillie, sp. 



LUZULA ERECTA, Desv. Moors near Forss Water, Dr. Ward, sp. 



L. SPICATA, DC. Accepted by Watson on faith of R. Brown of 

 Campst Cat., also named by him in " Edin. Trans." As this 

 occurs with Juncus trifidus, L., in the Outer Hebrides at the 

 height of 1807 ft. (Duncan, sps.\ and in Shetland at 1400 ft. 

 (Beeby, sp.}, there is no reason against its being a Caithness 

 plant. Neither L. spicuta nor/", trifidus is certain for Orkney 

 yet, but the Ward Hill of Hoy (1564 ft.) has Silene acaulis, 

 Arctostaphylos, Uva-Ursi, A. alpina, Vaccinium uliginosum, 

 Saxifraga aizoides, S. oppositifolia, Thalictrum alpinum, 

 Saussurea alpina, Oxyria reniformis, Draba incana, etc, as 



