THE FERN BULLETIN 



73 



the state. Northampton, Bucks, Chester, Lancaster, 

 Franklin, Huntingdon, Blair, Centre, Lehigh and 

 Montgomery Counties. 



Asplenium trichomanes L. Maidenhair Spleen- 

 wort. In crevices of shaded rocks, though occasionally 

 in exposed situations common throughout. 



Athyrium filix - foemina (L). Lady fern. 

 Woods, roadsides, thickets and in wet open situa- 

 tions. Common throughout, and as variable as it is 

 common. Plants apparently referrable to varieties 

 angustum, incisum, laxum, ovaium, rhocticum, distans 

 and rubellum have been found by the writer. Have 

 noted but few forked fronds. Both red and green 

 stiped forms occur. The red is confined to deep, rich 

 woods while the green stiped plant may be found any- 

 where. The two have grown side by side in my gar- 

 den for three years without any apparent change in 

 color. 



Athyrium acrostichoides (Sw.) Silvery Spleen- 

 wort. Rich and wet woods. Common in the south- 

 eastern section and probably throughout. A sterile 

 form with somewhat distant segments, deeply toothed, 

 is occasional in deep woods. 



Camptosorus rhizophyllus (L.) Walking 

 Fern. On rocks, preferring limestone. Local, through- 

 out. Most variable when growing on limestone. 

 Forked fronds not uncommon. 



Cheilanthes vestita (Sw.) Hairy Lipfern. 

 On dry rocks. Said to prefer those of igneous origin. 

 I have seen it luxuriant and abundant on red shale. 

 Very local and only recorded from central and east- 

 ern portions. Berks. Busks, Northampton, Chester, 

 Monroe, Lancaster, Fulton, Montgomery and Dela- 

 ware counties. 



