Fertile pinna, under side. 



LOMARIOPSIS LONGIFOLIA. 

 J. Smith. 



PLATE XXXVII. 



Lomarin longifoUa, Kaulfuss. Speengel. 



Acrostichum sorbifolium, Vahl. (Not o/' LiNNa;irs.) 



Lomariopsis — From loma, the edge, and opsin, appearance, in allusion 

 to the marginal frond. Longifolia — Long-fronded. 



An interesting rare Fern. 



A stove s'pecies. 



Native of Tropical America, Martinique, and Porto Eico. 



Fronds dimorphous and pinnate; the pinna3 articulate with 

 the rachis. The fertile pinnas contracted, sub-opposite below, 

 alternate above, from six to ten pairs and a terminal one; 

 length, of pinnte six inches, breadth one inch and a half; 

 oblong-lanceolate in form, pointed at the apex, cuneate at the 

 base, and paler underneath. 



Veins uniform, part simple and part forked, direct, parallel, 

 free, and conspicuous. 



Fertile pinna smaller and narrow, sporangiferous, on the 

 under side covering the whole frond; length three inches 

 and a half; breadth not half an inch; margin membranous, 

 narrow, and sub-iudusiform. 



