VI. LYCOPODIACE^. 



913 



Lywpodlium. 



Sporangium and bract, 



inner face (mag.)- 



Lycopodmm. 



Spore, showing the three 



lines of dehiscence 



(mag.). 



Selaginella. 



Micro-sporangium 



(mag.). 



Selagi?i€lla. . 

 Frnctiferons branch. 



Lycopodium clavatum, 

 lYuctiferous branch. 



Selaginella. 



Kacro-sporangium 



(mag.). 



either acute or terminating in a scarious white tongue {L. vestitum) ; axillary buds 

 never present. 



Eepeoductive organs springing either near the base of the leaves, over all the 

 branches, or only at their upper part, sometimes towards the base of bracteal leaves, 

 and forming spikes, catkins, or terminal cones ; rarely borne at the end of a sort 

 of naked scape, which rises from the middle of a rosette of small subulate leaves 

 {Phylloglossum). Spoeangia sometimes all alike, and then l-ceUed {Lycopodium, 

 Phylloglossum), or 2-celled {Tmesipteris), or 3-celled (Psilotum), containing only very 

 small homogeneous granules, sometimes dimorphous {Selaginella). The dimorphous 

 sporcmgia consist of :— 1st, miceo-spoeangia (goniotheca), which are 2=3-valved, and 

 contain numerous smooth or papillose granules {microspores, anfheridia), which are 

 developed- in groups of 4 in cells that are soon re-absorbed ; these autheridia, when 

 placed in suitable conditions of moisture, break, and project beyond the cells, whence 

 antherozoids emerge, similar to those of Ferns and Equisetums ; — 2nd, the maceo- 



