iio 



FERNS : BRITISH AND FOREIGN. 



elongated, immersed, rarely superficial, forming linear, ccn- 

 tinuous dr interrupted reticulated sori. 



Genus S5.— Outline portion of fertile frond, under side. No.-*. 



1. A. lineatum, Kaulf. Polytsenium lineatum, Besv.; J. Sm. 

 Gen. Fil. ; Hook. Gen. Fil. t. 107. Vittaria lanceolata, 

 Sw.; Schk. Fil. t. 101 B.— West Indies. 



% A. lanceolatum, Kaulf. Hemionitis lanceolata, Zi,i,\,. ; 

 (Plwn. Fil. 1. 127,/. c) ; Schk. Fil t. 6.— West Indies. 



3. A. Cayennense, Kaulf. ; Kunae, Anal. t. 19, /. 2. He- 



mionitis Cayennensis, Besv. ; Prcsl. — Tropical 

 America. 



4. A. reticulatum, Kaulf. Hemionitis reticulata, Font. 



Schk. Fil. t. 6. — Indian, Malayan, and Pacific Islands. 



§ 4. Yittarim. Fronds simple, linear. Sori transverse, 

 continuous, marginal or anti-marginal. 



66. VITTABIA, Sm. 



Vernation vaiserial, contiguous ; sarmenlum short furnished 



