= SSS Tay 
112 METROPOLITAN PARK FLORA. 
A. acrostichoides, Swz. 
Rocky woodlands. B*, frequent: —M*, common: —S, 
occasional. A form near, but not quite deeply enough cut for 
a type of var. incisum, Gray, was collected in B. 
CYSTOPTERIS, Bernh. BriappEer Fern. 
C. fragilis, Bernh. 
Moist rocks and shaded cliffs; occasional. M~*, frequent; 
crevices of moss-covered rocks, Virginia Wood; rocky border 
of Spot Pond, etc. 
ONOCLEA, L.+ 
QO. sensibilis, L. Sensitive FEern. 
Common everywhere in low meadows and thickets. B* and 
M, reported as common in meadows and damp woods. Doubt- 
less common in S and BB. 
WOODSIA, R. Br. 
W. Ilvensis, R. Br. 
Occasional on exposed ledges. B*, rare:—WM, frequent on 
rocks in upland woods. 
W. obtusa, Torr. 
Rocky woods, crevices, and pockets of ledges; rare. M*, 
occasional; W. side of S. Reservoir; side of Bear Hill, etc. 
DICKSONIA, L’Her. 
D. pilosiuscula, Willd. 
Common in shady woodlands and low grounds. B*, com- 
mon :—M* and S, frequent. 
OSMUNDA, L. FLowerine FERN. 
O. regalis, L. FLowerine FERN. 
Common in low woodlands. B* and M, common:—S, 
damp woods. 
+The noble Ostrich Fern, O. Struthiopteris,Hoffm., formerly grew 
very near the present limits of the Fells, and should be introduced 
into all the Reservations. 

