110 



METROPOLITAN PARK FLORA. 



A. ebeneum, Ait. Ebony Spleenwort. 



Occasional on knolls and ledges. B*, frequent; by Mona- 

 tiquot Stream ; rocky places on Great Blue Hill, etc. : — M*, 

 occasional ; Cascade region ; abundant on Bear Hill, etc. 

 A. thelypteroides, Michx. 



Rich woods. B, rare ; near Ceclar Swamp : — M, found in 

 the Pine Hill woodlands, some years ago. 

 A. Filix=fcemina, Bernh. Lady Fern. 



Common in a variety of forms in moist woodlands, the var. 

 a.ngustum, D. C. Eaton, in dry exposed situations. B *, fre- 

 quent ; by Old Furnace Brook ; N. and E. of Babel Rock, 

 etc.; var. angustum, D. C. Eaton, slope of Hawk Hill : — 

 M*i common in damp woods : — BB, occurs. 



PHEGOPTERLS, Fee. Beech Fern. 



P. polypodioides, Fee. 



Occasional in damp woods and ravines. B*, occurs : — M, 

 rare. 

 P. hexagomoptera, Fee. 



Damp woods; rare. B*, rare ; base of Hawk Hill, etc. :— 

 M*, rare ; damp woods, E. slope of Bear Hill, and two sta- 

 tions in Medford. 

 P. Dryopteris, Fee. 



Damp rocky woods ; rare. M, reported as abundant in one 

 locality, Melrose. 



ASPIDIUM, Swz. Shield Fern. 

 A. Thelypteris, Swz. 



Common in various situations in low ground. B* and M*, 

 common. 

 A. simulatum, Davenport. ■f 



Low moist woodlands with A. Thelypteris and A. Novebora- 

 cence ; it thrives best in shaded situations, fruiting abundantly 

 where A. Thelypteris is nearly always sterile ; as yet not well 



t See Hot. Gaz. xix. 495. 



