26 PEOF. M. AV. HARKINGTOX ON TEOPICAL FERNS. 



The fiaely crisped wing and margin of the pinnae give the plant 

 a resemblance to some of the mosses ; hence the name assigned to 

 it. The margins are sometimes denticulate ; and exceptionally 

 pubescence is present. The plant has affinity with H. tortuosmn. 

 Hooker; but it is nearer H, crispum^ H. B. K. 



Htmenophtllum polyaxthos, Swartz. Luzon. 



H. JAYANICUM, Sipreng. Luzon. 



H. DiLATATFM, Sivartz. Luzon. New to this locality. 



H. TUNBRiDOENSE, Smith, Luzou, Not found here before- 



67*. H. FKATERNUiM, JlaTTington^ n. sp. 



Stipe slender, 2 inches high, winged ; frond 21 inches long, \\ 

 inch broad, oblong, erect, tripinnatifid ; rachis and branches 

 winged ; pinnae ovate, | in. long or less ; ultimate divisions linear ; 

 margin of wing and lamina crisped, denticulate ; sori terminal, 

 sessile, medium in size, scattered over the frond ; involucre the 

 width of the ultimate divisions, cleft to the base ; valves elliptical, 

 laciniate at the apex, elsewhere entire and crisped. 



A single plant was found groAving with the H, thuidium^ as 

 described. The denticulate margins and laciniate valves locate 

 this plant near S. tortuosum^ Hooker, 



H. Neksii, Hooker, Luzon. 



Trichomanes parvi'Lum, Poiret. Luzoii. 



T. sAxiFRAGOiDEs, Pvesl. Tcruate. 



' T. DiGiTATUM, Swartz. Luzon. 



_ \ 



T. PALLIDUM, Blume. Luzon. 



T. AUEicuLATUM, Blume. Luzon ; Formosa. 



T. Smithii, HooTcer. Luzon. 



T. APiiFOLiUM, PresL ' Luzon. 



Several specimens of this species were found of uniform size 

 and mature, but only about 5 inches high ; probably a local variety 

 of the species, 



T. BiGinrM, Sicartz. Luzon. 



Datallia parallela, Wallich. Amboyna. 



D, PEDATA, >Sw*7A. Luzon; Formosa; Swatow, China. 



D. AEPiNis, Hooker. Luzon. Locality new. 



D. ^^^TiTXy Blume. Luzon; Swatow, China. 



D. UYMENOPHrLLOiDEs, Baker. Luzon. Locality new. 



D. piLciiELLA, Hooker. Luzon ; near top of volcano, 



Ternate. 



1). KEPEXS, Besv. Luzon. 



D. CONTJGUA, Sicartz. Luzon. 



