Ocros&gR :30.1908] PreRIDOPHYTES OF THE Horn or NzcRos 399 
ATHYRIUM Roth.* 
Athyrium Elmeri Copel. 
Affine A. opaco (Don) Copel., quo stipite subviride, rha- 
chidibus viridibus, fronde multo minore, graciliore, pinnulis 
obtusis, segmentis integris, sinubus apertis differt. 
Rhizomate suberecto radices rigidas grisceo-atras emittente, 
paleis fuscis lanceolaties coronato; stipite ca. 20 cm. alto; 
apud basin paleaceo; fronde 30-40 cm. alta, 15-20 em. lata, 
tripinnatifida, membranacea, glabra, pinnis acuminatis, infimis 
sequentibus aequalibus vel paullo diminutis; pinnulis infimis 
brevistipitatis, sequentibus, anguste adnatis, majoribus ultra 
mediam laminam incisis, apices versus fere integris; soris 
brevibus, irregularibus, prope costam pinnulae; indusio nullo. 
On mossy water-worn rocks in ravines, Horn of Negros 
Mountain, alt. 1200 m., No. 10168. 
Athyrium stramineum Copel. 
Athyrium gregis A. nigripedis, rhachide sicco sorisque 
perpallidis, lamina membranacea nigra distinctum. 
| Radicibus rigidis ut videtur carentibus; stipite 30 em. 
r alto ad basin paleis brunneis paucis vestito, aliter glabro, vivo 
succulente, rhachideque viridibus; fronde 50 cm. alta, 20 cm. 
lata; pinnis pinnatis utroque latere ca. 8, stipitatis, majoribus 
15 cm. longis, 5 cm. latis, acuminatis, infimis paullo reductis 
suberectis; pinnulis subobliquis, 25 mm. longis, 14 mm. latis, 
obtusis, fere ad costam incisis, medialibus anguste adnatis, 
distalibus decurrentibus, tenuissime membranaceis, infra satu- 
rate viridibus, supra fere nigris; segmentis oblongis, denticu- 
latis; soris usque ad 3 mm. longis, oblongis costalibus, sparsis, 
indusiis angustis virido-albis fere omnibus asplenioideis; spo- 
rangiis pallide brunneis. 
Damp fertile soil, Horn of Negros Mountain, alt. 750 m., 
No. 9703. 
Athyrium geophilum Copel. 
Filix A. Bolsteri affinis, sed multo minor, pinnulis paucis 
separatis cuneiformibus, rhizomate adscendente, baeibus stipitum 
paleis paucis minutis pallidis vestitis. 
*For publication of names in this genus see Philip. Journ. 
Sci. 3 C (1908) 285. Diagnoses of Mr. Elmer new species 
are reprinted here for the benefit of those who receive these 
collections but may not have access to the original publication. 
