2. D. simulata Davenp. 
Aspidium simulatum Davenp. 1894. Bot. Gaz. 
192 407.) Clute, 1. c. 122. 
Dryopteris simulata Davenp.\.c.as syn. Under. 
in Il]. Fl. 1: 16; Nat. Ferns 111; in Britt. Man. 
Gye 
NOI stmulatum Davenp.\. ¢. as synon. 
Waters, 1. c. 205. 
MASSACHUSETTS FERN. 
Plants 6 dm. or higher; leaves oblong-lanceolate; pin- 
nae 7 cm. or less in length, acuminate, deeply pinnatifid ; 
ultimate segments oblong, obtuse; sori small. 
In low, moist woods. 
Glen Burnie, Md., W. Maxon. 
*** Lower pinnae stalked, 1-2 cm. wide. 
3. D. thelypteris (L.) A. Gray. 
filix pumila palustris Virginiana. . Pluken. 
Alm sis Pvt. t. 254. -f. 42 
- Acrostichum thelypterts L.\. c. 1041. 
Aspidium thelypteris Sw.\. c. 40. Eaton, 1. c. 
1233. 30-420, i Gray, lic. 656. Cluze, lc. 2, 
Nephrodium thelypteris Desv.\. c. 257. Waters, 
IEC. 190, 
Dopiek thelypteris A. Gray, 1848. Man. 630. 
Underw. tall Pinas, Nate Perm. 11> in 
Batt cra. 
Marsu Farn. 
40 
