134 



Asplenium Trichomanes, L. 



Clefts of rocks. Common. 

 Asplenium ebeneum, Ait. 



Dry, rocky places, usually in pine woods. Common and somewhat 



variable. 

 Asplenium i^eVs-ptevoideSr Michx. 



Ipswich (Oakes), Lynnfield (Rev. J. L. Eussell), Swampscott 



(J. R.). Scarce. 

 Asplenium Pilix-fCBmina, Bernh. (Lady Fern.) 



Very variable, 

 (a). Three to four feet high, twelve to sixteen inches wide, lower 



piniise smallest. Moist shady places. Common. 

 (6). Var. Eh.8eticum, Moore. One to two feet high, four to six 



inches wide, rigid. Banks and roadsides. Common, 

 (c). Var. Michauxii, Mett. Two to three feet high, stem red, 



foliage delicate. Essex woods. Scarce. 

 (d). Two to three feet high, lower pinnse largest. West Newbury, 



Beverly. Scarce. Various other intermediate forms are found, 



sometimes mimicking Aspidium spinulosum, and again resembling 



Aspidium Noveboracense. 



Phegopteris polypodioid.es, Fee. (Beech Fern.) 

 Danvers, Beverly, Essex, Manchester, Middleton, Haverhill, West 

 Newbury. Scarce, and never found in large quantities. 



Phegopteris hexagonoptera, Fee. 



Georgetown (Mrs. C. N. S. Horner), Chebacco woods (J. H. S. and 

 J. R.). Rare. 



Phegopteris Dryopteris,\Pee. 

 Haverhill (W. P. Conant), Boxford, Middleton, Beverly, Essex, 

 Georgetown (Mrs. C. N. S. Horner). Scarce, the stations being 

 small. 



Aspidium Thelypteris, Sw. 



Moist places. Common. 

 Aspidium Noveboracense, Sw. (New York Fern.) 



Damp places in the woods. Common. 

 Aspidium spinulosum, Sw. 



A common and very variable evergreen fern, 

 (a). Var. vulgare, Eaton. (The typical form.) 



Essex, Georgetown, Beverly, Haverhill, etc. Frequent. 

 (6) . Var. dilatatum, Eaton. 



This seems to be a strongly developed form of the typical plant, 



the lower pinnae being very broad. This variety does not grow in 



the county to the perfection attained farther north, yet the form 



here found is sufiBciently near it to be included. 



