November 15, 1910] THE FERNS oF Mount Apo 805 
10640; Mt. Apo, No. 11452. ''Notong." Trunk 1 to 5 
m. high. 
Mindanao, Negros, Mindoro. 
Java, Celebes. 
POLYPODIACE. 
DRYOPTERIS Adan. 
Dryopteris tenerrima Copel. in P. J. 8. 4, C (1909) 111. 
Small succulent tufts on wet ledges along Cati creek, alt. 
1750 m., No. 11552. ''Manaba." 
Mt. Banajao. 
Dryopteris dura Copel. spec. nova. 
Caudice erecto, breve; stipitibus confertis, adscendentibus, 
rigidis, atropurpureis, apud basin paleis atropurpureis falcatis 
acuminatis late lanceolatis vestitis, sursum glabris; fronde 
lanceolata, acuminata, deorsum angustata, ca. 25 cm. alta, 4-8 
cm. lata, subbipinnata, rhachide stramineo-purpurea, spar- 
sissime paleacea, aliter infra glabra, supra dense pubescente; 
pinnis inferioribus deflexis diminutis breve stipitatis, sequen- 
tibus sessilibus, lanceolatis, acutis, minute ciliatis, costa supra 
pubescente excepta aliter glabris, rigidis, 0.5 ad costam pinnatifidis 
et rhachin versus profundius incisis, segmento infimo acroscopico 
interdum libero, segmentis rotundatis, integris; venis pinnatis, 
venulis simplicibus; soris costalibus, indusiis persistentibus 
variiformibus. 
In moss on tree trunks, Mt. Calelan, alt. 2600 m., 
No. 11674. ‘‘Libagod.’’ 
This plant has no near relatives known to me, and even 
its place in Dryopteris is not above doubt. The indusium is 
usually reniform; but some smaller ones are athyrioid. 
Dryopteris syrmatica (Willd.) O. K. var. petiolosa Christ. 
In rich soil along streamlets, alt. 450 m., No. 11109. 
**Saladot.’’ 
