140 



FEENS : BEITISH AND FOEEIGN. 



7. N. refractinu, /. Sm. Polypodium refraotum, Fisdh. et 



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

 /. Sm. Cat. Gult. Ferns, 1857.— BrazU. 



8. IT. truncatum, /. Sm. Aspidium trimcatum, Oaud. Ml 



Freycinet's Voy. 1. 10 ; Lowe's Ferns, 6, 1. 12. — Sand- 

 wich Islands. 



9. IT. abortivum, J. Sm. Aspidium abortivum, Blmne. 



Aspidium decurtatum, Ktmze. — Java. 



10. IT. venustum, /. Sm. Aspidium venustum, B. Sew. in 



Mag. Nat. Sist. 1838, p. 464. — Jamaica. 



11. N. moUe, B. Br. ; Schott, Gen. Fil. t 14 ; Hoole. Oen. Fil. 



t. 48 B. Aspidium moUe, Sw. ; Schk. FU.-t. 34 B. 

 A. violascens, Link. Yojr. corymbiferum, M^oore, i/n, 

 Oard. Ohron. 1856 ; Lowe's Ferns, 7, 1. 13. — Tropics, 

 very general. T. 



12. IT. patens, /. Sm. — Demerara. 



66. MESOCHLJENA, E. Br. 



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

 tifid. Vei/ns costasform, piunate ; the lower pair of venules 

 anastomosing, the others free, parallel. Beceptaoles medial, 



Genus 66. — Portions of barren and fertile firond, natural size; ditto enlarged. No. 1 . 



elongated. Sori oblong-linear. InSMsi/wm hippocrepiform, 

 attached longitudinally on the centre of the receptacle, having 

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



