114 FERNS I BRITISH AND FOREIGN. 



Veins uniform, simple or forked, direct, parallel, free. Fertile 



Genus 38. Portions of fertile and barren fronds, natural size, and portion 

 of fertile, enlarged. No. 2. 



pinncB plane, often broad, sporangiferous on the under side; 

 margin membranous, narrow, subindusiform. 



1. L. sorbifolia, Fee. Acrostichum sorbifolium, Linn. ; (Plum. 



Fil 1. 117). Stenochlaena sorbifolia, /. 8m. Gen. Fil 

 West Indies. 



2. L. longifolia, /. Sin. Lomaria longifolia, KauJf. Lowe's 



New Ferns, t. 37. Acrostichum Yapurense, Hook. 

 Gard. Ferns, t. 57. Acrostichum phlebodes, Kunze ; 

 HooJc. Sp. Fil. 5, p. 24, sub Acrostichum sorbifolium,. 

 West Indies and Tropical America. 



3. L. heteromorpha, J. Sm. Sfcenochlaena heteromorpha, 



J. Sm. Gen. Fil. 1841. Lomaria filiformis, A. Cunn. 

 Hook. Sp. Fil. 3, t. 149. Lomaria propinqua, 

 A. Cunn. New Zealand. 



** Veins combined at the margin. 

 39. OLFERSIA, Eadd.; Prcsl. 



Vernation uniserial, contiguous ; sarmentum scandent, squa- 

 mose. Fronds pinnate, 1-3 feet long. Veins uniform, simple 



