80 
Descriptive Notes on Papuan Plants, 
Polypodium nighescens, 
Blume, Flora Javae Filic. 101, t. 70. 
Fly-River ,■ D’Albertis, 
Also in the collection formed by the Rev. G. Brown in New Ireland. 
It requires some caution to distinguish this species from some forms of 
P. phymatodes. 
Polypodium lingoiforme. 
Mettenius in Miq. Annal. Mus. Lugd. Batav. ii. 228. 
Fly-River; D’ Albertis. 
This might passingly be very easily confused with P. musEefolium (Bl. 
FI. Javse Filic, 171, t. 79), which has also been brought by Signor 
D’Albertis. 
Polypodium decorum. 
Brakenridge in Unit. Stat. Explor. Exped. Filic. 7, t. 2. 
Fly-River ; D'Albertis. 
Like in specimens from Ceylon, so in those from New Guinea the 
well developed sori are not much immersed in the frond, but become 
conspicuously exserted. The same species was found by the unfortunate 
Bishop Patteson in Erromang’a. This fern differs mainly from P. 
nutans (Blume, Flora Javse, 182, t. kxxvi. a) in the almost complete 
absence of a distinct stipes. To Blume’s plant seems also to belong 
P. contiguum (Brakenr. 1. c. 6, t. 2, f. 1 ; P. blechnoides, Hook. Sp. Fif 
iv. 180). ^ 
Polypodium albo-squamatum, 
Blume, Flora Javae Filic. 137, t. Ivii. 
Fly-River ; D’Albertis. 
A small form, some specimens altogether only a span high, the pinnm 
not half as broad as in the narrowest variety, figured as P, varians by 
Blume on t. Iviii,, also not caudate-acuminate. 
Polypodium proliferum. 
Roxburgh in Wallich’s list, 312. 
Fly-River; D’Albertis. 
On the same place occur also an Alsophila and a Cvathea, but without 
means of studjung the structure of the stem, it is difficult to determine 
the name of these and most other ferntrees. 
The collections contain still two other species ; one of these, gathered 
at Port Moresby by the Rev. Dr. Turner, is allied to P. barbatum (Hook. 
