180 NATURAL HISTORY OF 



near Pen Hyfrydd. This plant is a native of 

 lime rocks. 



Rubia peregrina. Wild madder. Gloddaeth 

 and Llanrhos. 



Plantago maritima. Sea plantain. Abundant 

 on the shore. The miners sometimes pickle 

 the leaves, v^hen rock sampire is scarce. 



P. coronopus. Buck's horn plantain. Abun- 

 dant. 



Parietaria officinalis, Pellitory of the wall. 

 Orme's-Head. The cuticle of this plant ex- 

 hibits a remarkable power of resistance to 

 heat. At Caernarvon, it grows luxuriantly 

 over the face of a slate rock, which, in the 

 summer-sun, becomes almost too hot to be 

 touched by the finger. 



Ilex aquifolium. Holly. At Pen Hyfrydd, com- 

 mon. 



Sagina maritima. Sea pearl wort. Between 

 Llandrillo and Bodafon. 



S. apetala. Annual small flowered pearl wort. 

 Llandudno. Mr, Winch. 



Class V.— PENTANDRIA. 



Lithospermum officinale. Grey millet. Rocks 



above Llandudno. Mr, Winch, 

 Lithospermum maritimum. Sea Gromwell. 



Llandudno bay. Mr, Wilson and Mr, Winch. 



