358 THE FOREST FLORA OF CARNARVONSHIRE. [March 



CONIFERiE. 



These occur plentifully in our woods, but, unless 

 the Scotch Pine (P. Si/lvestris), have been 

 introduced. The larch (Larix Europa:a), 



„ . y. 'I the Scotch Pine (P. Si/lvestris), have been 



P. Austnaca. ' \ j j' 



■p. ' ) Norway spruce {Abies excelsa), and silver 



fir {Abies peetinata) are common woodland 



P. Strobus. 

 P. Cembra, 



trees in Carnarvonshire, more particularly on 



the Peurhyn estate. 

 Juniperus communis. Frequent in some woods. 

 J. nana. I have found this somewhat rare plant amongst scrub oaks 



above Ogwen Lake. 

 Taocus baccata. Common in most woodlands. 

 T. adpressci. Frequent, but introduced, in woods. 



Typhace^. 



Tiipha latifolia. ") „ , ■ , •', . • 



m Jj- T r Ireqixent m damp situations. 



1. angustifoka. j ^ ^ 



Sparganium ramosum. ^ 



S. simplex. > In ditches, sparingly. 



S. minimum. J 



Aeoide^. 

 Arum maculatum. Plentiful in most woods. 



Lemnace^. 



Lcmna minor. Of frequent occurrence along the margins of wood- 

 land pools. 



NAXiDEiE. 



Potamogeton nutans. "\ 



P. lucens. > Not uncommon in stagnant or running streams. 



P. crispus. ) 



Alismace^. 



Biitomus umbellatus. ") .^ ^ . , , 



„, , y Frequent m marshy ground. 



Ahsma Plantago. j ^ 



OrCIIIDACE-'E. 



Epipactis latifolia. Plentiful in the woods along the railway Hue 

 between Bangor and Aber stations. The variety, or rather form, 

 E. rubiginosa, I have found on several occasions. 



