140 
FERNS : BRITISH AND FOREIGN. 
7. IN’. refractum, J. Sm. Polypodium refractum, Fisch. et 
Mey. ; Lowe's Ferns, 2, t. 48. Goniopteris refracta, 
J. Sm. Cat. Cult. Ferns, 1857. — Brazil. 
8. IN’. truneatum, J. Sm. Aspidium truncatum, Gaud, in 
Freycinet’s Voy. 1. 10 ; Lowe's Ferns, 6, 1. 12. — Sand- 
wich Islands. 
9. IN’, abortivum, J. Sm. Aspidium abortivum, Flume. 
Aspidium decurtatum, Kunze. — Java. 
10. IN’, venustum, J. Sm. Aspidium venustum, B. Hew. in 
May. Nat. Hist. 1838, p. 464. — Jamaica. 
11. N. molle, B. Br. ; Schott, Gen. Fil. t. 14; Hook. Gen. Fil. 
t. 48 B. Aspidium molle, Sw. ; Schk. 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, J. Sm. — Demerara. 
66. MESOCHLiENA, 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. Beceptacles medial, 
Genus CG.— Portions of barren and fertile frond, natural size; ditto enlarged. No. 1. 
elongated. Sori oblong-linear. Indusium hippocrepiform, 
attached longitudinally on the centre of the receptacle, having 
sporangia in its axis on each side, its margin free. 
