1914 
8 The Philippine Journal of Science 
POLYPODIUM TUANENSE sp. nov. 
Phymatodes palmato-pinnatifida, venatione P. myriocarpi, P. 
euryphyllo affinis ; rhizomate longe-repente, 4 mm crasso, basibus 
nigris brunneo-marginatis peltatis fere orbicularibus palearum 
quarum partes superiores caducae dense vestito ; phyllopodio sub- 
nullo; stipitibus curvis, ca. 10 cm longis, 1 mm crassis, glabris; 
fronde glabra, papyracea, brevi-decurrente, ultra 20 cm alta et 
lata, in segmentum unum terminale et utroque latere 2 minora 
profunde pinnatifida; segmentis lanceolatis, acuminatissimis, in- 
tegris, terminale ca. 2 cm, lateralibus 1-1.5 cm latis; venis seriem 
unam areolarum magnarum circumdantibus, aliter irregularibus 
et sat inconspicuis ; soris minutis, irregulariter dispersis nec non 
praecipue in lineam submarginalem instructis, superficialibus. 
Mount Tuan, King 384. This number is also borne by Cyathea wood- 
larkensis. I presume that this is Drynaria acuminata Brack., but this 
name is not valid for it in Polypodium. P. Kingii is broader and shorter, 
more coriaceous and hardly at all decurrent, and has large sori. 
AGLAOMORPHA Schott 
It is only two years since I revised this genus \ including Dryostachyum 
and a new Bornean fern, and recognizing three sections, which in appear- 
ance, but not in essentials, are very distinct. In the meantime two closely 
related New Guinea ferns have been brought to light, which in my opinion 
will best be regarded as constituting still another section of Aglaomorpha 
as interpreted by me. This demands a still further modification of the 
generic diagnosis, to include ferns with the fronds completely dimorphous, 
instead of those with a specialized fertile upper portion. The alternative 
is to create a new genus. It seems to me to be altogether undesirable to 
include these ferns in Polypodium unless this is done with the entire group. 
HOLOSTACHYUM subgenus novum 
Aglaomorpha, soris pluriseriatis, frondibus sterilibus et ferti- 
libus omnino dimorphis. 
AGLAOMORPHA (HOLOSTACHYUM) BUCHANANI sp. nov. 
Species Polypodio Schlechteri Brause (melius Aglaomorphae, 
vide infra) affinis, segmentorum marginibus parallelibus haud 
e basi sensim angustatis, abrupte brevi-acuminatis, segmentis 
fertilibus rhachin versus abrupte valde dilatatis. 
Gewagewa, King 412. Dedicated, at Mr. King’s request, to his host at 
Gewagewa. 
1 Philip. Journ. Sci. 6 (1911) Bot. 140. 
