PHILIPPINE FERNS, VI. 
55 
unisoriferis ; soris utroque latere venarum uniseriatis; indusio 
orbiculare cum sinu minute, 2 mm late, insertione lineare glan- 
duloso-pilifero, aliter glabram, tenue sed persistente. 
Mindanao, Ag-usan Subprovince, Mount Hilonghilong, alt. 42.5 m, C. M. 
Weber 1H8, March, 1911. 
Nearest to Tectaria decurrens, but in appearance approaching T. Men- 
yantkidis; distinguished from the former by the few segments, slightly 
decurrent base, and conspicuously remote main veins. 
Humata microsora Copel. sp. nov. (Plate IV.) 
Rhizomate 2 mm crasso, paleis castaneis apice acicularibus 
vestito, ad truncos arborum late repente; stipitibus remotis, 4 
ad 7 cm altis, sparse paleaceis; fronde usque ad 18 cm alta, a 
basi truncata 15 ad 18 mm lata, sensim sursum angustata, deor- 
sum fere ad costam latam pinnatifida, segmentis 1 cm latis, trun- 
catis vel rotundatis, integris, rigide coriacea, glabra; venis 
conspicuis, furcatis; soris in lobe quoque usque ad 12 submar- 
ginalibus 0.6 ad 0.8 mm latis. 
Mindanao, Agusan Subprovince, Mount Hilonghilong, alt. 180 m, C. M. 
Weber 1H6, March, 1911. 
A very distinct species in the group of Humata angustata J. Sm. 
Adiantum scabripes Copel. sp. nov. (Plate V.) 
Adiantellum rhizomate setis parvis saturate atropurpureis 
dense vestito; stipite nitido, atrocastaneo, 20 ad 40 cm alto, 
deorsum paleis angustis 3 mm vestito vel ob baseos illarum 
scabro, sursum rhachibusque ubique glabris; fronde deltoidea, 
15 ad 20 cm alta et lata, bi- vel tripinnata, pinnis paucis, acutis ; 
pinnulis stipitatis, dimidiatis, oblongis, apice rotundatis, 10 ad 
13 mm longis, marginibus superioribus et exterioribus ubi steril- 
ibus cartilagineo-denticulatis, coriaceis, non opacis, supra nitidis- 
simis, infra luce directa pallidis luce oblique incidente subcupreis 
sed oblique versus obscuritatem visi fere albis; soro plerumque 
uno, usque ad 5 mm longo, interdum interrupto ; indusio brunneo, 
coriaceo, 0.7 ad 1 mm lato. 
Mindanao, Agusan Subprovince, Mount Hilonghilong, alt. 175 m, C. M. 
Weber 117U, March, 1911. 
A relative of Adiantum opacum and A. cujyreum, and like these a very 
promising fern for cultivation. 
Adiantum flabellulatum L. Sp. PI. (1753) 1095. 
Luzon, Province of Ilocos Sur, Mount Dagat, Bur. Sci. 7 760 Ramos. 
New to the Philippines. Tropical Asia, China, and Japan. 
Athyrium lanceum (Thunb.) Milcle Bot. Zeit. (1870) 354. 
Asplenium lanceum Thunb. FI. Jap. (1784) 333. 
Luzon, Province of Ilocos Norte, Bur. Sci. 7761 Ramos. 
New to the Philippines. Ceylon and India through China to Japan. 
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