68 COPELAND. 
Humata dimorpha Copel. sp. nov. 
Rhizomate 2 mm crasso, paleis castaneis lanceolatis 6 mm longis 
vestito; stipitibus glabris, gracilibus, frondis sterilis 5 cm fer- 
tilis 7 cm altis; fronde sterile 5 cm alta, 4 cm lata rhachi sor- 
dide squamulosa, pinnis utroque latere sub apice late crenulata 
ca. 4, fere 2 cm longis, infimis 1 cm latis, subintegris, basi an- 
guste adnatis, truncatis, obtusis, sequentibus paullo minoribus 
glabris rigide coriaceis; fronde fertile 13 cm alta, 8 cm lata, 
valde acuminata; pinnis inferioribus 3-paribus aequalibus, 4 ad 
4.5 cm longis, usque ad 12 mm latis, stipitatis, rigide coriaceis; 
pinnulis remotis, infimis solummodo liberis, vix quam sequen- 
tibus majoribus, 2 ad 3 mm latis, utroque latere in dentes 2 
ad 4 triangulares pinnatifidis, soro quoque dentem complente, 
indusio lato, interdum quam alto duplo latiore, centro nigro. 
Papua, Lakekamu, King 326. A very distinct species. 
Davallodes viscidulum (Mett.) v. A. v. R. 
Davallia viscidula Mett. (1869) 
This species has the indusial characters of D. gymnocarpum, but the 
frond is more lax and finer cut, v^ith the pinnules next to the rhachis dilated. 
Lindsaya papuana Copel. sp. nov. 
Synaphlebium gregis L. decompositae Willd. pinnis vel pin- 
nulis integris soro continuo; fronde pinnata pinnis usque ad 
3 cm longis vel tripartite et pinnulis ca. 2 cm longis; pinnulis 
brevistipitatis, apice obtusis, integris, maximis rarius incon- 
spicue incisis ; soro fere marginale, lamina ultra venam sori- 
feram bullata. 
Papua, Lakekamu, King 358. 
Lindsaya azurea Christ is a plant vrith much smaller and truncate 
pinnules. L. nitida Copel., of Borneo, has pinnules of quite different shape, 
the base hardly truncate and apex broadly rounded, with the sorus at the 
end. The pinnules of L. papuana are broadest at the base and abruptly 
truncate, and the apex is obtuse rather than rounded. The sorus extends 
from the point next to the rhachis to the apex, almost always without a 
break. 
Polypodium linguaeforme Mett. 
King 368, 190, and 21 in part, are P. linguaeforme, judging by diagnosis 
only: I have not seen what I could feel sure was this species. These 
specimens fall well within the range of variation of Polypodium musi- 
folium Bl. 
