Psilotum, Stv. 



P. triquetrum, Sw. Tropics, extending to New Zealand, 

 Japan, and Florida. Hook. Fil. Exot. t. 63. 



var. mascarenica, Hort. 



Salvinia, Schreb. 

 S. natans, Hoffm. Subtropics of the Old World. 



Selaginella, Spring. 



S. africana, A. Br. See Vogelii. 

 S. albonitens, Spring. West Indies. 

 S. albospica^ Hort. See stenophylla, var. 

 S. amcena, Hort. See caulescens. 



S. apus, Spring. North America, 

 var. elegans, Hort. 



S. argentea, Spring. See caulescens, var. 



S. atroviridis, Spring. Tropical Asia. Lycopodiunt 

 atroviride, Wall. ; Hook. & Grev. Ic. Fil. t, 3D. 



S. bakeriana, Bailey. Queensland. 



S. bellula, Moore. See inaequalifolia, var. perelegans. 



S. Braunii, Baker. China. 



S. ccesia, Hort. See uncinata. 



S. canaliculata, Baker. Tropical Asia. 



S. caudata, Spring. See canaliculata. 



S. caulescens, Spring. Tropical Asia, 

 var. amoena, Hort. 



var. argentea, Baker. Malay Peninsula, 

 var. japonica, MacNab. Japan, 

 var. minor, Hort. 



