136 History of H Ingham. 



Bromus, L. 



secalinus, L. Chess. 

 mollis, L. Soft Chess, 

 ciliatus, L. 

 tectorum, L. Rare. 



Agropyrum, Grcrt. 



repens, Beauv. Quitch Grass. 



Elymus, L. 



Virginicus, L. Lyme Grass, 

 striatus, Willd. 



Lolium, L. 



perenne, Ray or Rye Grass. 



CRYPTOGAMOUS or FLOWERLESS PLANTS. 



91. EQUISETACEiE. (HORSETAIL FAMILY.) 



A family of one genus, growing on wet or low grounds. The 

 fossil remains found in coal deposits, show that these plants were 

 once of enormous size, and formed a large part of the original plant 

 life of the globe ; but the few species which exist now comprise 

 low, simple, or in some cases branched plants, leafless, and hav- 

 ing jointed hollow stems. They abound in silex, and are used 

 somewhat in the arts. 



Equisetum, L. 



arvense, L. Horsetail, 

 sylvaticum, L. 



92. filices. (Ferns.) 



One of our most beautiful orders of plants which, in the early 

 history of the globe, formed a very considerable part of its flora. 

 They were of great size, and our vast coal-fields are largely com- 

 posed of the fossil remains of ferns. With us they are low and 

 slender, but in warmer regions they attain the size of small 

 trees. 



Polypodium, L. 



vulgare, L. Polypody. 



Pteris, L. 



aquilina, L. Brake. 



Woodwardia, Smith. 



Virginica, Smith. Chain Fern, 

 angustifolia, Smith. 



Asplenium, L. 



Trichomanes, L. Spleen-wort, 

 ebeneum, Ait. 

 Felix-foemina, Bernh. 



