54 COPELAND. 
opacis, mox glabrescentibus, fertilibus baud diverais; margine 
reflexo sat lato. 
Mindanao, Agusan-Subprovince, Mount Hilonghilong, alt. 115 m, C. M. 
Weher 114S, March, 1911. ' 
A relative of Pteris opaca J. Sm. but much smaller; easily distinguished 
from all forms of Pteris cretica by the simple and entire, decurrent, coria- 
ceous pinnae. ' ' . ■ i 
Dryopteris dichrotricha Copel. sp. nov. 
Thelypteris, D. (Nephrodio) adenophorae affinis; rhizomate 
erecto, paleis angustis castaneis vestito; stipite 30 cm alto, brevis- 
sime hirsute, sursum pinnis in auriculas minutas reductis donato; 
fronde 35 cm alta,' 12 ad 15 cm lata, acuminata, ubique densis- 
sime minute albido-setosa; pinnis utroque latere ca. 20, sessilibus, 
acuminatis, 10 ad 15 mm latis, | ad costam pinnatifidis; utroque 
facie ad costa venasque setis majoribus vestitis; venis simplicibus, 
utroque latere 6 ad 9; soris medialibus, indusio persistente, 
setoso. 
Mindanao, Agusan Subprovince, Mount Hilonghilong, alt. 120 m, C. M, 
Weber 1173, March 1911. Nearer to D. adenophora than to any species 
with free veins. 
r 
Dryopteris mesodon Copel. sp. nov. 
Species gregis D. dissectae, stipite ad basin paleis linearibus 
castaneis 15 mm longis vestito, supra sparse spinuloso; fronde 
35 ad 40 cm alta et lata, rhachibus castaneis, supra costisque velu- 
tinis; pinnis infimis oppositis multo maximis, stipitatis, deltoideis^ 
valde acuminatis; earum pinnulis^ infimis stipitatis, acuminatis; 
harum pinnulis" brevistipitatis, cordatis, acutis, ad basin pin- 
natis; pinnulis"' adnatis, obtusis, grosse serratis, utroque latere 
una; pinnulis ordinum omnium superioribus decurrenti-connexis, 
et ala decursa saepe dente uno ornata; segmentis penultimis acute 
grosse serratis, acutis, oblanceolatis ; soris a costa remotis, parvis ; 
indusio persistente, minute praecipue ad insertionem puberulo. 
Mindanao, Agusan Subprovince, Mount HUonghilong, alt. 120 m, C. M- 
Weber 1176, March, 1911. 
This bears the same relation to Bi-yopteris dissecta that D. piirpurascens 
does to D. sparsa. Its nearest relative is D. balabacensis Christ. 
Tectaria Weberi Copel. sp. nov. 
Sagenia, rhizomate ca. 1 cm crasso, suberecto, apice paleis 
angustis atrocastaneis 4 mm longis dense vestito; stipite 20 ad 
25 cm alta, 15 ad 20 cm lata, breviter decurrente, ad alam 2 
ad 5 mm latam pinnatifida; segmentis plerumque 5, sat remotis, 
late lanceolatis, sinuatis, obtusis, versus costam angustatis, her- 
baceis, lamina glabra; venis minute glanduloso-piliferis, venis 
primariis remotis, fere ad marginem protensis, areolis primariis 
