1 >\ \ A LLI EJE — OLEA .N 1 > KA . 49 



(2) O. neriiformis Cav. Rluzome woody, mostly erect, branching, 

 clothed witli appifssed scales; stipe articulate below the middle — that 

 is, loiifjer tliaii tlic out^'rowth of tlic iliizoine tiiat bears it — fronds scattered 

 or clustertd, 20 to 40 em. lii{,'li, 2 cm. broad, narrowed gradually toward 

 both ends, usually subcoriaeeous and glabrous; indusium oblique, lar^'e 

 enough to cover sorus. Tiiis species is con.strued as including Presl's 



0. nwUis, with pubescent fronds, and 0. macrocarpa, with large sori and 

 ciliate margin. 



Luzon. \ic, CuiiiiiKj 04. 00 in part; Baguio, Elmer G28C; Davao, War- 

 hurti UlSti. 

 Pantropie. 



(3) O. Whitmeel Baker. Rhizome wide-creeping, 2 mm. thick, densely 

 beset witii squarrose paleie 4 mm. long; stipes (including both parts) 

 about 4 em. high, articulate about the middle; fronds 20 to .30 cm. high, 

 one-tenth as broail. aiimiiiiatc. narrowed to the base, slightly repand, 

 membranous, glabrous except for fine short hairs along the margin, and 

 narrow scales 2 mm. long standing horizontally from the costa, the latter 

 sometimes deciduous; sori large, almost orbicular, indusium membranous. 



Mount Apo, DcVorc and Hoover 364; Copeland 1055. 

 Samoa, Colcl)fs. 



(4) O. Cumingji J. .Sm. Rhizome creeping, 2 mm. thick, densely clothed 

 with appressed lanceolate-subulate scales; stipe (including both parts) 

 about 5 cm. high, articulate below the middle; frond 20 to .30 cm. high, 

 one-tenth as broad, lanceolate, acuminate, contracted rather abruptly at 

 the base, subentire, with narrowly cartilaginous margin, papyraceous, costa 

 and both surfaces slightly pubescent ; indusium rough. 



Luzon. Cuming 60 in part; Baguio, Elmer 6513. 

 India, southern China. 



(14) HUM ATA Cavanilles. 



Rhizome creeping, scaly, the stipes articulate to it; sori terminal, at 

 the margin or somewhat remote from it : indusium reniform or more 

 elongate, fixed by its broad base. Mostly small epiphytic ferns, resembling 

 Davallia. from which they are distinguished by the free sides of the 

 (usually broader) indusium. 



1. Euhumata : indusium thin. 



2. Sterile frond entire. 



3. Fertile frond entire (1)//. atujustata 



3. Fertile frond lobed (2) H. hetcrophylla 



2. Sterile frond pinnatifid or pinnate. 



3. Lowest segments not greatly enlarged (3) H. gaimardiana 



3. Lowest segments or pinnie very large. 



4. Not more than bipinnatifld (4) H. rcpens 



4. At least tripinnatlfid. 



5. Sori on the teeth of the seg- 



ments { 



1(6) //. i'tiniiinjii 



5. Sori almost covering segments (7) //. botrychioidcs 



24036 4 



