CHAEACTERS OF TRIBES AND GENERA. 143 



58. LOMAGEAMMA, J. Sm. (1841). 



Cheilolepton, Fee (1844) ; Neurocallis, Pr. and Moore ; Lepto- 

 chilus sp., Bhmie ; Acrosticlmm sp., Hooh. 8p. Fil. 



Vernation uniserial, sarmentnm scandent. Fronds stipate, 

 pinnate, or bipinnate, 2 to 3 feet high, membraneous, 

 flaccid. Pimice numerous, lanceolate, 6 to 8 inches long, 

 base truncate, sessile, and articulate with the rachis. Veins 

 uniform, reticulate ; areoles oblong, hexagonoid. Fertile 

 segments contracted, wholly sporangiferous, or sometimes 

 the contraction only partial, and then the sporangia 

 forming' a broad marginal line ; both states furnished with 

 numerous peltate scales. 



Type. LeptocJiilus lomaroides, Bl. 



Illnst. Hook, and Bauer, Gen. Fil, t. 98 ; Fee Acrost., 

 t. 51 ; Moore Ind. Fil., p. 18, A. 



Obs.— This g-enus was originally founded on specimens 

 of a Fern from the Philippine Islands, which I afterwards 

 found had been previously described by Blume under the 

 name of Leptochiliis lomaroides. In general habit it agrees 

 with Cyrtogonitcm as now restricted, but the numerous and 

 curious peltate scales that cover the sporangia marks it as 

 a distinct genus ; it was originally supposed by me that 

 the margijial sori was its normal character, but this is 

 now found to be due to the fertile pinnse being only par- 

 tially contracted. 



* Fronds pinnate, 



Sp, L. lomarioides {Bl.) {L. pteroides, J. 8m. 1841, 

 Aerost. Blumeanum, Blook. Sp. Fil. 5, p. 268.) 



** Fronds iipiinnate. 

 L, polyphylla, Brack. Fil. U. S. E-.rpl Exp., p. 83, 1. 12, f. 3. 



