184 
FLORA OF MOUNT DESERT. 
Seeies II. CEYPTOGAMIA; PLOWERLESS PLANTS. 
Class I. PTERIDOPHYTA. 
EQUISETACE.aS. Hoesbtail Family. 
EQUISETUM, L. Hoesetail. Scoueing Rush. 
^ E. arvense, L. Common Horsetail. ^ t 
Moist gravelly soil; common. ^ /{Cy 
%1 E. sylvaticum, L. W A . 
Wet banks and shady places; frequent. ^ / f 
7 ^ ^ E. limosum, ^ /(C h ■ 
' Borders of ponds; rare. Bubble Pond (F. M. Day, Redfield); ^,‘^i'Q, 
— Great Pond (Rand). 
FILICES. Feens. 
POLYPODIUM, L. Polypody. 
P. vulgare.L. ^ if 
I Rocks: very common. ^ 
Rocks; very common. 
P. aquilina, L. 
Dry soil; very common 
PTERIS, L. Beake. 
e 4c, t 
77 ’ 
771 - 
'//£, T 
ASPLENIUM, L. Spleenwoet. 
A. Filix-foemina (L.), Bernb. Lady Fern. U ,7 /v/ ' ^ a /" ., tfj* 
T. A ^ / A AT -m C B 
Damp shady places; frequent, and very variable. ' ■ 
Var. angustatum (Willd.), D. C. Eaton. Var. Micliauxii, 
Mett. 
Fronds l°-3° high, rather rigid, narrow in outline, nearly 
bipinnate; pinnse obliquely ascending or curved upwards, nar¬ 
rowly lanceolate ; segments oblong, crowded, crenated or serrate; 
