The Botany of Hingham. 137 



Phegopteris, Fee. 



hexagonoptera, Fee. Beech Fern. 



Aspidium, Sw. 



Thelypteris, Swartz. Shield Fern. 

 Noveboraeense, Swartz. 

 spinulosum, Swartz. 

 cristatum, Swartz. 

 marginale, Swartz. 

 acrostichoides, Swartz. 



Cystopteris, Bernh. 



fragilis, Bernh. Bladder Fern. 



Onoclea, L. 



sensibilis, L. Sensitive Fern. 



Licksonia, L'Her. 



pilosiuscula, Willd. 



Osmunda, L. 



regalis, L. Flowering Fern. 



Claytoniana, L. 



ciniiainoinea, L. Cinnamon Fern. 



93. OPHIOGLOSSACEiE. (ADDER'S-TONGUE FAMILY.) 



The plants of this order have the general characters of the 

 Filices, but differ in some structural peculiarities, for which they 

 have been placed in a separate order. The Botrichium ternaturn 

 is a beautiful species. 



Botrichium, Sw. 



ternaturn, Sw. Moonwort. 

 several varieties. 



Ophioglossum, L. 



vulgatum, L. Adder's Tongue. 



94 LYCOPODIACE^]. (CLUB-MOSS FAMILY.) 



An order of low, creeping, moss-like, evergreen plants ; but in 

 the early ages of the world this family contained many of gigan- 

 tic size. Some species are emetic, but otherwise their properties 

 are unimportant. The powder (spores) contained in the spore- 

 cases is highly inflammable and is used in the manufacture of 

 fireworks. 



Lycopodium, L. 



lucidulum, Mx. Club-moss, 

 obscurum, L. Ground Pine, 

 clavatum, L. Club-moss, 

 complanatum, L. Spreaditig-moss. 

 auuotiuum, L. 



