CATALOGUE OE EEENS. 
55 
1. M. Javanica, R. Rr. in Ilorsf. FI. Jav. Sphserostephanos 
asplenioides, J. Sm. in HooJc. Gen. Fil. t. 24 ; Kunze, Fil. 
t. 10, 11. — Singapore and Java. 
81. WOOBSIA, R. Rr. 
Vernation fasciculate, erect, csespitose. Fronds bi-tripinnatifid, 
1-12 inches high, smooth or squamiferous. Veins simple or 
forked, free, the lower exterior branch sporangiferous on or below 
its apex. Sori round. Indusium calyciform, nearly entire or 
deeply laciniated, the lacinise usually terminating in long hairs, 
which involve the sporangia. 
1. 'W. Ilvensis, R. Rr. Acrostichum Ilvense, Linn. Polypo- 
dium Ilvense, Sw. ; Schk. Fil. t. 19. — Europe. 
2. "W. hyperborea, R. Rr. ; Trans. Linn. Soc. v. xi. t. 11 ; 
Hook. Gen. Fil . t. 119. Polypodium hyperboreum, Sw. 
— Europe. 
3. ‘W, cbtusa, Hook . Polypodium obtusum, Sw. ; Schk. Fil . 
t. 21. Woodsia Perrlniana, Hook, et Grev. Ic. Fil. t. 68. 
— North America. 
4. W. mollis, J. Sm. Physematium molle, Kunze , Anal. Pterid. 
t. 27. — Mexico. 
82. OITSTOPTERIS, Bernh. 
Vernation fasciculate, decumbent or sub-erect. Fronds slender, 
bi-tripinnatifid, 4-15 inches high. Veins forked ; venules free. 
Sporangiferous receptacles punctiform, medial. Sori round. 
Indusium lateral, oblong or reniform, cucullate, dentate or fim- 
briate. 
1. O* tenuis, Schott. Aspidium tenue, Sw. ; Schk. Fil. t. 53 B . 
Aspidium atomarium, Muhl .; Willd . — North America. 
2. C. bulbifera, Bernh. Aspidium bulbiferum, Sw. ; Schk. Fil. 
t. 57. — North America. 
3. C. fragilis, Bernh. Polypodium fragilis, Linn. Aspidium 
fragilis, Sw. ; Schk. Fil. t. 54 ; King. Bot. t. 1587 ; Lindl. 
