2 
186 CHARACTERS OF TRIBES AND GENERA. 
92.— MicnoPrERIS, J. Sm. (non Desv.). 
Polypodium; sp., auct, and Hook. Sp. Fil. 
Vernation uniserial, sarmentum slender, filiform, elonga- 
ted. Fronds distant, 1 to 3 inches high, linear, gramineous 
serrate or pinnate, opaque, rigid. Sori punctiform or 
slightly oval, terminal, solitary in each segment. 
Type. Polypodium fallax, Schlecht. 
Illust, Mett. Polyp., t. 1., f. 4 to 6. 
Oss.—The above character comprehends three very small 
Ferns, specially differing from each other by the fronds 
being simple and grass like in one, serrate-pinnatifid in 
another, and pinnate in the third, but agreeing so closely 
in their mode of growth and structure, that I deem it best 
to associate them together as a distinct genus, and this I do 
the more readily in consequence of their not possessing, 
either collectively or individually, direct affinity with any 
other genus. 
* Fronds linear, entire. 
Sp. M. graminoides, J. Sm, 
** Fronds linear, serrate. 
Sp. M. monticole, Klot. 
*** Fronds pinnate, pinna cuneiform, 
Sp. M. fallax, Schlecht, 
These three species are very local, the first being found 
in Jamaica, the second in Columbia, and the third in 
. Mexico. ! 
93.—AbrNopnorus, Gaud. (1826), 
Polypodium sp. auct., Hook. Sp. Fil. 
. Vernation sarmentose. Fronds contiguous, cespitose, bi- —— 
sub-tripinnatifid, 3 to 11 inches high, oblong lanceolate, 
