TAB. XII.. 



LYCOPODIACE^. 



Fig. 1 . 



LycopoDiiJM. — a. Fertile portion of a frond, b. Spike 



of another species 



c. Scale from a. with a 



2-valved capsule, d. The capsule, e. The seeds. 

 /. Scale from b. with a 3-valved capsule, g 

 capsule. 



The- 



h. The grains or seeds. 



MARSILEACEiE. 



Fig. 2. ISOETES. 



a. b. Leaves with fructifications at the base. 



Fig 



c. Capsule, d. The same cut through transversely. 



e. g. Filiform receptacles of seeds of two kinds. / 



Seeds from e. 

 3. PiLULARTA. — a. Plant, b. c. Capsules, d. Capsule cut 



through transversely, e. The same cut through 



vertically. /. 

 of capsules. 



g. h. The two kinds 



EQUISETACE^ 



Fig. 4. Equisetum. — a. Apex of a plant, b. Scale with invo- 

 lucres from the spike, c. d. Seeds or grains from 

 the involucres with their clavate filaments. 



( 



