64 
CATALOGUE OE EERNS. 
forming a bivalved or tubular cyst or groove, containing the spo- 
rangia. 
Sect. I. LIMDSJEJE, J. Sm. 
Sporangiferous receptacles combined, forming a linear, conti- 
nuous or interrupted marginal sorus, or rarely simple-punctiform. 
90. LINDSiEA, Dry. 
Vernation fasciculate, erect or decumbent. Fronds simple, 
pinnate, or bi-tripinnate ; pinnae oblong, dimidiate, upper margin 
fertile ; costa excentric or obsolete. Veins radiating, forked ; 
venules free, their apices combined by a continuous, transverse, 
sporangiferous receptacle. Indusium linear, usually shorter than 
the indusiform margin. 
1. 1 m . cultrata ? JSw. ; Sclik. Fil. t. 114 ; Noolc. et Grev. Ic. Fit. 
t. 144. — East Indies. 
2. la. Guianensis, Dry.; Hoob. Sp. Fil. 1. t. 62. — Tropical 
America. 
91. SCHIZOLOMA, Gaud. 
Vernation fasciculate. Fronds simple, lobed, or pinnate ; 
pinnae oblong or linear-lanceolate ; costa central. Veins forked ; 
venules anastomosing, forming oblique, elongated areoles. Spo- 
rangiferous receptacles continuous on both margins. Indusium 
linear, usually equal with the indusiform margin. 
1. S. ensifolia, J. Sm. Lindsaea ensifolia, Sw. ; Hooh. et Grev. 
Ic. Fil. t. 3. Lindsaea lanceolata, Labill. Nov. Noll. t. 
248. f. 1. — Malayan and Polynesian Islands. 
92. DIGTYOXIFHIUM, Noob 
Vernation fasciculate, erect. Fronds simple, linear-lanceolate, 
attenuated and decurrent on the stipes, 1-3 feet long ; costa 
central. Veins compound anastomosing. Sporangiferous recep- 
tacles continuous on both margins. Indusium linear, nearly 
equal with the indusiform margin. 
