292 COPELu\ND. 
and Bengiiet are the teeth cleft at the apex, and the wing, decurrent from the 
lowest acroscopic pinnule, which occiipies the angle between the main rachis and 
w 
that of a pinna. 
Benguet, Elmer 654S, Copeland IHS, Bur. ScL JfiS//. Mearns; Mount Data, 
Copeland 1877. 
13. Athyrium Elmeri Copel. sp. nova. 
Affine A. opaco (Don) Copel.^ quo stipite subviride, rliachidibus viri- 
dibuS; fronde multo minore, graciliore, pinnulis obtusis^ segmentis in- 
tegris^ sinubus apertis differt. 
Ehizomate suberecto radices rigidas griseo-atras emittente^ palcis fuscis 
laneoolatis coronate: stipite ca. 20 cm alto; apnd basin paleaceo; fronde 
30-40 cm alta, 15-20 cm lata, tripinnatifida, membranacea, glabra, 
pinnis acuminatis, infimis sequentibns aequalibiis vel paullo diniinntis; 
pinnulis iniimis brevistipitatis, scqnentibus anguste adnatis, majoribus 
ultra mediam laminam incisis, apices versus fere integris; soris brevibus, 
irregularibus, prope costam pinnulae; indusio nullo. 
On mossy wateiworn rocks in ravines, Horn of Negros ISIountain, altitiide 
1,200 m, May, 1908, FAmer 10168. 
14. Athyrium stramineum Copeland sp. nova. 
Athyrium gregis A. nigripedis, rhachide sicco sorisque perpallidis, 
lamina membranacea nigra distinctum. 
Eadicibus rigidis ut videtur carentibus; stipite 30 cm alto ad basin 
palcis brunneis panels vestito, aliter glabro, vivo succulente, rhacliideque 
viridibus ; fronde 50 cm alta, 20 cm lata ; pinnis pinnatis utroque latere 
ca. 8, stipitatis, majoribus 15 cm longis, 5 cm latis, acuuiinatiSj infimis 
paullo reductis suberectis; pinnulis subobliquis, 25 mm longis, 14 mm 
latiS; obtusis, fere ad costam incisis, medialibus anguste adnatis, distalibus 
decurrentibus, tenuissime membranaeeis, infra saturate viridibus, supra 
fere nigris; segmentis oblongis, denticulatis; soris usque ad 3 mm longis, 
oblongis, costalibus, sparsis, indusiis angustis virido-albis fere omnibus 
asplenioideis ; sporangiis pallide brunneis. 
Damp fertile soil, altitude 750 m, Horn of Negros Mountain, April, 1908, 
Elmer 9703. 
15. Athyrium platyphyllum Copeland sp. nova. 
Species distinctissima gregis A. nigripedis, pinnulis majoribus sym- 
metricis amplis, pinnis longe stipitatis. 
Ehizomate ut videtur horizontale, 1 cm crasso, radices nigras rigidas 
emittente, apice 1)a>ique nigra stipitis paleis fusco-nigris angustis 6 
mm longis vestitis; stipite 25-50 cm alto, fere glabro rliachidibusque 
stramineis; fronde grande fere GO cm alta, 40 cm lata, subdeltoidea, 
acuminata, tripinnatifida; pinnis 45°-60° distantibus, acuminatis, pedi- 
cellis pinnarum infimarum usque ad 4 cm longis; pinnulis plerumque 
angulo recto distantibus pedicellatis sed superioribus adnatis et supremis 
coadunatis, majoribus 7 cm longis, ultra 2 cm latis, basin versus fere ad 
costam lobatis; segmentis usque ad 5 mm latis, subfalcatis, simi aperto 
