280 FERNS : BRITISH AND FOREIGN. 



27. S. fllicina, Spring. Monogr. 2, p. 189. S. diohrous, Sort. 



— Columbia and Peru. 



28. S. Africans, A. Braun. Bevise, No. 23. S. Vogelii, Spring. 



— Fernando Po. 

 2D. S. pubescens, Spring. Monogr. 2, p. 173. Lycopodium 



pubescens, Wall. S. Willdenovii, Sort. — East Indies. 

 £0. S. Lyallii, Spring. Monogr. 2, p. 168. Lycopodium 



Lyallii, Sooh. et Orev. — Madagascar. 

 SI. S. Lobbii, Sort. ; A. Braun. Bevise, App. No. 26 ; Veitch. 



Cat. (1861).— Borneo. 



32. S. Wallicnii, Sort. ; Veitch. Gat. (1861).— Penang. 



§ 3. Plants rosulate. 



33. S. cuspidata, Linh ; Spring. Monogr. 2, p. 66. S. pal- 



lescens, Slot. S. circinalis, Sort. — Tropical America. 

 31. S. convoluta, Spring. Monogr. 2; p. 69. Lycopodium 

 convolutum, Walk, and Arnott. Lycopodium para- 

 doxa, Sort. — Tropical America. 



35. S. involvens, Spring. Monogr. 2, p. 63. Lycopodium 



involvens, Sw. — India. 



36. S. lepidophy 11a, Spring. M. onogr.2,p. 27. Lycopodium 



lepidophyllum, Sooh. et Grev. — Mexico. 



Ohdeii V.-MARSILEACE^!. 



Plants growing in, or floating in water (rarely not in water), 

 very various in character, consisting of grass or trefoil-like 

 leaves, or branched with imbricated leaves, bearing sporangia 

 (conceptacles*) at their roots, or base, or on the footstalks, or on 

 small branchlets on the under side, which are 1-4, or many. 

 ceii?d. 



161. MARSILEA, Linn. 



Plants with quadrifid (trefoil-like) leaves on a long footstalk, 

 from a rhizome growing under water.- Sporangia (conceptacles) 

 borne on the rhizome at the base of the footstalk, or pedicellate 



* A hollow case containing spore-cases; a compound sporangium 



