912 



VI. LYCOPODIACE^E. 



Pceppig has observed stems of Selaginella exaltata which measured more than 



60 feet. 



LEAVES simple, sessile, more or less decurrent, never jointed, regular or falcate, 



with a single stomatiferous nerve, sometimes whorled around the axis, and all, at a 



given height, of the same shape and size (Lycopodium, &c.); sometimes in 4 regular 



series, arranged on the 

 plan of the branches, and 

 presenting two different 

 forms; the one largest, 

 occupying the side of the 

 axis, and called lateral', 

 the others smaller, called 

 intermediate or stipuliform 

 ( Selaginella ) ; sometimes 

 auricled ; glabrous or very 

 rarely sub- pubescent, green 

 or dark or light red (Lyco- 

 podium rubrum, rubescens, 

 &c.), sometimes shot (Sela- 

 ginella ccesia, atro-viridu), 



Tmttipterb. 



Sporangium seen in front 

 (mag.)- 



Piilotvm. Fructiferous 

 branch (mag.). 



Piilotum triquetrvm. 

 Fructiferous branch. 



Ptilotum IHquetrum. 

 Fructiferous pedicel. 



Tmeipterit, 

 Portion of fructiferous frond 



