1859.] PLANTS OF PERTH. 41 



Pedicularis palustris and Pedicularis sylvatica. Methven Bog ; 

 plentiful. 



Phalaris arundinacea. Banks of the Tay ; frequent. P. and K. 



PJileum pratense and var. hulhosum. Frequent about Perth. 



Phragmites communis. Abundant in the Carse of Gowrie. 



Pimpinella Saxifraga. Banks of the Almond, and at Craigie ; 

 but in both localities sparingly. 



^Pinguicula vulgaris. In marshy ground, S. ; not frequent. 



Poa compressa. Rare, on gravelly soil. 



Poa nemoralis. Witchill, K. ; very sparingly. 



PoJygala vulgaris. Heathy ground : Kinnoul Hill and Craigie 

 Moor. 



Polygonum Bistorta. Near Friartown ; not plentiful. 



Polygonum amphibium. Frequent in watery places and damp 

 ground. 



Polygonum viviparum. Near Cherrybank hamlet, P. Plentiful 

 in cultivated ground near Forgandenny. 



Polypodium vulgare. Craigie Wood, and other places ; frequent. 



Polypodium Dryopteris. Wood of Scone ; frequent. 



Polypodium Phegopteris. Wood on Birnani Hill, Dunkeld. 



Polystichum aculeatum. Den of Bethaick ; abundant and luxu- 

 riant. 



Potamogeton nutans. In a streamlet three miles west from 

 Perth ; plentiful. 



Potamogeton pjerfoliatus. Bottom of Tay ; plentiful. 



Potentilla argentea. Witchill, K. ; plentiful. 



Potentilla Fragaria. Dry banks. Den of Quarry Mill. S. 



Potentilla recta. Witchill, near and around an old quarry; 

 plentiful. — This plant, which has been the subject of so 

 much discussion in the ' Phytologist,^ has never, as far as I 

 am aware, been observed in Scotland until I observed it in 

 this locality. A neighbouring surgeon had seen it before 

 me, but he only considered it a larger form of P. argentea, 

 which grows in the same locality. The difference of the 

 two plants is evident to the most cursory observer. See my 

 remarks on P. recta, in this month's ' Phytologist' (Novem- 

 ber, 1858). 

 Poterium Sanguisorba. Rocks, Witchill, K. ; plentiful. 

 Primula veris. Wood of Scone ; not common. 

 Primula vulgaris. Frequent in many places, under hedges, etc. 



N. S. VOL. III. G 



