278 FEENS: BRITISH AND FOREIGN. 



leaves generally imbricate, distichous, jungermannia-like, of 

 two sizes; the smaller stipulaeform. Sporangia reniform, 

 vertically bivalved, sessile in the axis of the leaves, or on con- 

 tracted terminal spikes. Spores of two forms : in some, 

 sporangia (Antlieridangia) small and numerous; in others- 

 (Ooplioridangia), 34, large. 



A. Plant leafy on all sides. 



1. S. spimilosa, Spring. Lycopodium selaginoides, Linn.; 



Sclile. Fil. 1. 165 ; Eng. Sot. 1. 1148. Europe, Britain. 



2. S. uliginosa, Lab. Nov. Holl. 2, p. 104, t. 251, /. 2; Willd. 



Sp. PI. 5, p. 32. Australia and Tasmania. 



S. Leaves distichous. 



1. Plants surculose. 



f Stems decumbent, creeping. 



3. S. Apus, Spring. Monogr. p. 75. S. densa, Hort. Lycopo- 



dium Brasiliense, Radd. Fil. Bras. 82, t. 1. North 

 America and Brazil. 



4. S. Ludoviciana, A. Sraun. Revise, No. 5. Louisiana. 



5. S. Helvetica, Linlc ; Spring. Monogr. Z,p. 83. Lycopodium 



Helveticum, Linn. Europe, Switzerland. 



6. S. denticulata, Link ; Spring. Monogr. 2, p. 82. Lyco- 



podium denticulatum, Linn. Central Europe. 



7. S. delicatissima,^. Sraun. Revise, No. 8. S. microphylla,. 



Spring. Columbia. 



8. S. serpens, Spring. Monogr. 2, p. 102. Lycopodium. 



serpens, Desv. S. mutabalis, Hort. S. variabilis, 

 Hort. S. Jamaicensis, Hort. Jamaica. 



9. S. uncinata, Spring. Monogr. 2, p. 109. S. ccesia, Hort. 



China. 



10. S. hortensis, Metten. Fil. Hort. Lips.p. 128. S. denticu- 



lata, Hort. South of Europe. t 



11. S. sarmentosa, A. Sraun. S. patula, Spring. S. apo- 



thecia, Hort. "West Indies. 



12. S. Pceppigiana, Spring.; Hook. Fil.Exot. t. 56. Tropical 



America. 



