PHILIPPINK FERNS, VI. 
55 
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unisorif eris ; soris utroque latere venarum uniseriatis; indusio 
orbiculare cum sinu minuto, 2 mm lato, insertione lineare glan- 
duloso-pilifero, aliter glabram, tenue sed persistente. 
■ 
Mindanao, Agusan Subprovince, Mount Hilonghilong, alt. 425 m, C M. 
Weber 1148, March, 1911. 
Nearest to Tectaria decurrens, but in appearance approaching T. Men- 
yanthidis; distinguished from the former by the few segments,* slightly 
decurrent base, and conspicuously remote main veins. 
Humata microsoTa 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 lobo quoque usque ad 12 aubmar- 
ginalibus 0.6 ad 0.8 mm latis. 
Mindanao, Agusan Subprovince, Mount Hilonghilong, alt. 180 m, C M. 
Weber ll^G, March, 1911. 
A vejry distinct species in the group of Humata angiistaid J. Sm. 
Adiantum scabrlpes 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 baseoa 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 1174, March, 1911. 
A relative of Adiantum opacutn and A.'cuprenm, and like these a very 
promising fern for cultivation. 
Adiantum flabellulatum L. Sp. PI. (1753) 1095. 
Luzon, Province of Ilocos Sur, Mount Dagat, Bur. ScL iTtiO Ramos. 
New to the Philippines. Tropical Asia, China, and Japan. 
Athyrium lanceum (Thunb.) Milde Bot. Zeit (1870) 354. 
Asplenium lancenvi Thunb. Fl. Jap. (1784) 333. 
Luzon, Province of Ilocos Norte, Bur. Scl 7761 Ramon. 
New to the Philippines. Ceylon and India through China to Japan. 
