CELLULARES, 



OR 



FLOWERLESS PLANTS. 



PLANTS without flowers and spiral vessels, composed chiefly of 

 cellular tissue. ACOTYLEDONES, Juss. Cryptogamous or 

 j^Etheogamous Plants of Authors. 



DIVISION 1. FILICOIDE^:, OR FERN-LIKE PLANTS. 



Flowerless plants, with a stem having a vascular system and 

 distinct leaves ; their sporules having a proper integument, and 

 contained in distinct axillary or dorsal thecee. 



Ord. 91. FIL1CES. Juss. Fern Family. 



Fructification or organs of reproduction only of one kind. 

 Capsules spiked or racemed, or generally collected into clusters 

 of various shapes (sori), mostly upon the back or margin of the 

 frond, naked or covered with an involucre, with or without an 

 elastic ring. Seeds or sporules minute. Perennial plants, 

 most abundant in moist and mountainous countries within the 

 tropics, gradually diminishing towards the poles. Fronds leafy, 

 with a circinate vernation ; in perfection during a great part of 

 the year, especially in the summer months. 



Some species are used for food, others in medicine ; but their 

 virtues do not appear to be very powerful. 



