-1885.] THE FOREST FLORA OF CARNARVONSHIRE. 449 



*A. Adiantum-nigrum var. acutum. This rare and distinct fern I 

 have found in considerable quantity on two occasions. A form 

 •with variegated leaves occurs on a woodland at Pen-Dinas, the 

 greater part of which has been destroyed when shifting the 

 quarry railway. 



A. RtUa-miLraria. Abundant on old walls and buildings. A form 

 with reniforme leaves occurs in a single patch on a garden 

 wall here. 



A. scptmtrionale. I have seen several specimens of this rare fern in 



a rocky wood here. On the back of a plantation wall near 

 Llanrwst there still may be seen a few plants, where long may 

 they remain. In this county the above fern was at one time 

 pretty abundant, but it is now almost extinct. 



Scolopendriu7n vulgarc. Plentiful in damp woods. 



*>S'. vulgare var. crenatum. A neat and distinct variety that I have 

 found sparingly. It was recognised by Mr. Stansfield. 



*S. vulgarc va?: mnUifidum. I know one station in which most of 

 the plants are multifid. 



Ceterach officinarum. Now becoming very scarce, although at one 

 time it was in some places fairly abundant. I have found it 

 sparingly in seven different stations. 



*C. officinarum var. crenatum. A distinct and beautiful variety that 

 I have found in one situation — an old woodland wall near 

 Lime-grove, at Bangor. 



Blechnum spicant. Plentiful in rather damp woods. 



*B. spicant var. multifid am. Pare. I have found two specimens, 

 one of which is a particularly handsome plant, and was, from 

 fronds I sent, recognised as a good form by Mr. G. B. 

 WoUaston. 



*B. spicant var. strictum. Several plants of this neat, small-growing 

 variety were found by me in a wood at Aber. Also identified 

 by Mr. Wollaston. A somewhat distinct form of this variety 

 I have also found and distributed under the name of 

 Wehsterii. 



*B. spicant var. imbricatum. Pare. On several occasions I have 

 met .in with this variety, which is much imj)roved by culti- 

 vation. 



B. spicant var. anomalum. A peculiar form, in which all the fronds 



are fertile. Pare. 

 As all the above varieties of Blechnum spicant have retained 

 their distinct characteristics under cultivation for several years, 

 they may be relied upon as genuine. 

 Pteris aquilina. Plentiful in almost every wood and waste through- 

 out the county. 



2 F 



