140 



FEKNS : BRITISH AND FOEEIGN. 



7. N. refractum, J. 8m. Polypodium refractum, Fisch. et 



Meg. ; Lowe's Ferns, 2, t. 48. Goniopteris refracta, 

 J. 8m. Cat. Cult. Ferns, 1857. Brazil. 



8. N. truncatum, /. 8m. Aspidium truncatum, Gaud, in 



Freycinet's Voy. 1. 10 ; Lowe's Ferns, 6, t. 12. Sand- 

 wich Islands. 



9. N. abortivum, J". 8m. Aspidium abortivum, Blume. 



Aspidium decurtatum, Kunze. Java. 



10. "N. venustum, /. 8m. Aspidium venustum, R. Hew. in 



Mag. Nat. Hist. 1838, p. 464. Jamaica. 



11. N. molle, E. Sr. ; Scliott, Gen. Fil. t. 14 ; Hook. Gen. Fil. 



t. 4S^B. Aspidium molle, Sw. ; Sclik. Fil t. 34 B. 

 A. violascens, Link. Var. corymbiferum, Moore, in 

 Gard. Chron. 1856 ; Lowe's Ferns, 7, 1. 13. Tropics, 

 very general. T. 



12. N. patens, /. 8m. Demerara. 



66. MESOCHLJENA, B. Br. 



Vernation fasciculate, erect. Fronds 2-4 feet high, bipinna- 

 tifid. Veins costaeform, pinnate ; the lower pair of venules 

 anastomosing, the others free, parallel. Receptacles medial, 



Genus 66. Portions of barren and fertile frond, natural size; ditto enlarged. No. l . 



elongated. Sori oblong-linear. Indusium ' hippocrepiform, 

 attached longitudinally on the centre of the receptacle, h aving 

 sporangia in its axis on each side, its margin free. 



