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IX, C, 3 Copeland: New Sumatran Ferns 229 
potius basi basiscopica abscissa; pinnis medialibus usque ad 
-25 em longis, 6 cm latis, valde acuminatis, ad partem utroque 
latere costae ca 1 cm latam integram lobatis, herbaceis, in 
sinubus minute ciliatis, aliter glabris; lobis falcatis, 5-8 mm 
latis, integris; venis inconspicuis, anastomosantibus, in segmentis 
series areolarum utroque latere costulae 1 vel 2 includentibus; 
soris medialibus, nudis, plus minus elongatis. 
No. 81. “In shady jungle by stream.” 
Intermediate between Tectaria ambigua (Presl) and T. gigantea (Blume). 
TECTARIA SINGAPORIANA (Wall.) Copel. 
Aspidium singaporianum Wall. (1827). 
No. 89. 
LEPTOCHILUS OVATUS sp. nov. 
Fronde sterile lata, venarum ramis prope marginem praestan- 
tioribus; frondis fertilis stipite 85 cm alto, gracile, lamina 
anguste ovata, vix 6 cm longa, 2.5 cm lata; aliter L. decurrenti 
Bl. similis. 
No. 155. “Scandent near base of small trees, in moist shade.” 
ATHYRIUM BROOKSII sp. nov. 
Species gregis A. Swartzii (Bl.) (Diplazii Swartzii Bl. Enum. 
(1828) 191) rhizomate erecto; stipitibus rhachibusque inermibus 
nudis stipite 20-35 cm alto; fronde 30 cm alta, ovata, pinnata, 
pinna terminale inciso-serrata non hastata, aliis argute grosse- 
serratis; pinnis suboppositis, utroque latere ca. 5, stipitatis, 
-acuminatis, basi rotundatis haud truncatis, coriaceis, glabris, 
sterilibus 15 cm longis, 3.5 cm latis; venis versus sinus anas- 
tomosantibus; soris laminam fere obtegentibus. 
No. 108. 
A decidedly distinct member of the group of “Diplazum proliferum.” 
ASPLENIUM (THAMNOPTERIS) OBLANCEOLATUM sp. nov. 
Rhizomate 2 mm crasso, radicibus profunde obtecto; stipite 
subnullo; fronde 40-60 cm alta, 4 cm lata, anguste oblanceolata, 
acuta, deorsum sensim longe attenuata, glabra, viride, subcoria- 
cea; costa utraque facie prominente, inferne obscure carinata; 
venis erecto-patentibus, infra marginem anastomosantibus; soris 
brevibus, a costa vix 4 ad marginem protensis, indusio nikido, 
integro, persistente. 
No. 28. “On trunk.” 
In form of frond approaching broad forms of Asplenium colubrinum 
Christ, from which it differs in being broader, especially upward, and in 
the shorter and less spreading sori. 
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