The Scottish Naturalist. 321 



Heddle. In several cases Dr Boswell has not actually seen the 

 plants growing ; but specimens have been shown to him, either 

 by myself or by Dr H. H. Johnston. 



Very doubtful or extinct plants will be mentioned at the end 

 of the list. 



RANUNCULACE^E. 



I. Thalictrum L. 



t. Alpinum L., B. Not uncommon on the hills of Hoy. More 

 local on the hills of Orphir. Vishall Evie, D. Rousay, H. 

 Houton Head, Mainland, B. 



2. Minus L. 



a. maritimum. Links at Hoxa, South Ronaldshay, B. 

 At Dingeshow, Deerness, H. The only known sta- 

 tions. Links at Melsetter, Waas, B. 



II. Ranunculus L. 



3. Diversifolius Gilib. 



a. radians, B. Probably local. Quarry near Kirkwall. 

 This is now allowed to be R. trichophyllus with 

 floating leaves. 



4. Drouetii Schultz. Swanbister, B. Probably more common 



than the last. 



5. Hederaceus L. Papa Westray, D. Quendal, Rousay, H. 



6. Flammula L., B. Common. 



b. pseudo-reptans. Kirbister Loch. Orphir, B. 



7. Acris L., B. Common. 



8. Repens L., B. Common. 



9. Bulbosus L. Introduced at Swanbister 1849, B. Sandy 



links, D. Melsetter, H. 



10. Arvensis L. Hobbister, H. Doubtless introduced, B. 



11. Ficaria L., B. Common. 



111. Caltha L. 



12. Palustris L., B. Common. Included with the other yellow- 



flowered species of this order under the name "butter- 

 cups." 



PAPAVERACE^. 



iv. Papaver L. 



13. Rhceas L. Westness, Rousay, H. Probably only where 



introduced. 



VOL. VI. x 



