X, C, 2 
Copeland: Notes on Bornean Ferns 
lobed very nearly to the costa. The fern is a fine connecting form between 
P. decorum and P. tenuisectum, which should certainly be recognized as 
near relatives. 
The fern which I described from Mindanao as P. inarticulatum, in 
Philip. Journ. Sci. 1 (1906) Suppl. 160, and which we have been regarding 
as P. pediculatum, is really most distinct, and is not even a member of 
the same group; and so far as I yet know it bears no name save that 
which I gave it. 
POLYPODIUM MOULTON I Copel. sp. nov. 
Eupolypodium P. decoro Brack, affinis; paleis fuscis; fron- 
dibus 12-15 cm altis, 10-12 mm latis ; pinnis fere horizontalibus, 
rectis, vix plusquam 1 mm latis, vix apud rhachin dilatatis, ob- 
tusis, coriaceis, integris vel obscure crenulatis; soris fere cos- 
tularibus, elongatis, immersis, crateribus non setigeris. 
No. 2572. Retuh, Sarawak. 
The most evenly pectinate Polypodium known to me in this part of the 
world. A near relative of P. decorum, as indicated by form of paleae, 
texture, color of rachis, and the pubescence elsewhere than around the 
cavities bearing the sori. It differs in having darker paleae, fronds very 
much more slender throughout, and in the longer sori which are closer to 
the costa and sunk in naked cavities. While the pinnae stand well apart, 
they are much more numerous than on equally tall fronds of P. decorum. 
POLYPODIUM TAENIOPHYLLUM Copel. in Philip. Journ. Sci. 7 (1912) 
Bot. 65. 
No. 1561 collected in 1914, locality not stated, has some of the fronds 
unusually narrow, even for this species. The sori keep their distance from 
the costa and so become almost marginal. The margin folds down against 
each sorus, protecting it just as the continuous fold protects the continuous 
fruiting surface of Hymenolepis. The same specialization, associated with 
the somewhat sunken and elongate sori, is likewise strongly suggestive of 
Vittaria. 
131713 — 5 
