24 
CATALOGUE OE PERNS. 
laciniately lobed, bulbiferous. Veins pinnate ; the lower venules 
transversely anastomosing, forming elongated, costal and sub- 
costal areoles, the superior venules free. Fertile segments linear, 
rachiferous, convolute, nearly wholly sporangiferous. 
1. S. aurita, Presl . Acrostichum auritum, Sw. Polybotrya 
aurita, Bl. FI. Jav. t. 1. — Java. 
36. OLFERSIA, Padd. ; Brest. 
(Dorcapteris, Presl.) 
Vernation uniserial, contiguous ; sarmentum scandent, squa* 
mose. Fronds pinnate, 1-3 feet high. Veins uniform, simple 
or forked, direct, parallel, their apices combined by a transverse 
marginal vein. Fertile jpinnce linear or pinnatifid, convolute, 
wholly sporangiferous. 
1. O. cervisa, Presl. Acrostichum cervinum, Sw.; Plum . Fit. 
t. 154. O. corcovadensis, Padd. Fit. Bras. t. 14 ; Hoolc . 
Gen. Fil. t. 79 A. Acrostichum linarifolium, Presl . — 
Tropical America. 
37. SOEOMAIES, Fee. 
(Polybotrya § Soromanes, KlotzscJi.) 
Vernation uniserial ; sarmentum thick, scandent, squamose. 
Sterile fronds pinnate, 1-2 feet high. Veins pinnate ; venules 
acutely anastomosing, forming oblique, elongated areoles ; apices 
next the margin free and clavate. Fertile fronds bipinnate : seg- 
ments convolute, wholly sporangiferous. 
1. S. serratifolium, Fee y Acrost. t. 43. — Venezuela. 
38. POLYBOTRYA, Humb. 
Vernation uniserial ; sarmentum scandent, squamose. Fronds 
bi-tripinnate, 2-3 feet high. Veins pinnate ; venules free. Fer- 
tile segments convolute, pinnatifid or spicseform, wholly sporan- 
giferous. 
lo F. osmundacea, Hurnb. et Bonjpl. Nov. Gen. t. 1 ; Hoolc. 
