PAPUAN FERNS. 
69 
CYATHEACEAE. 
DICKSON I A L’H&itier. 
1. D. papuana F. v. M., det. by Maiden. 
No. 230, Ambasi; No. 350, Lakekamu. 
This fern is reduced by all recent authors to Saccoloma sorbifolium (Sm.) 
Christ. I doubt the identity of these two; but be that as it may, the fern 
is a Dicksonia rather than a Saccoloma. If one does not like to call it Dicksonia, 
it is probably Gystodium J. Sm. The mass of scales on and about the bases of 
the stipes is altogether Dicksonia- like. I have examined numerous sporangia 
from both of King’s collections and find that a majority have a somewhat 
oblique annulus interrupted by the pedicel. A smaller number have the annulus 
uninterrupted. The stomium is like that of other Dicksoniae. 
CYATHEA Smith. 
1. C. fusca Baker. 
Nos. 181, 21f6, 277. 
New Guinea. 
The veins and costae are not glabrous. I know this fern only by description. 
2. C. contaminans (Wall.) Copel. 
No. 215, in open country. 
Malaya, India. 
Nos. 227 and 356 are other species of which the specimens are insufficient for 
certain identification. No. 227 is very probably undescribed. 
HYMENOPHYLLACEAE. 
HYMENOPHYLLUM Smith. 
1. H. oo ides F. Muell. & Bak. ( ?) 
No. 106, Goodenough Bay. 
New Guinea. 
This fern is so determined by F. Manson Bailey, and I presume that he is 
acquainted with the original plant. In that ease the original description is 
peculiar in several respects, especially in calling the pinnae lanceolate; those 
of this plant are rather elliptic. 
No. 21(6 is another very slender plant more than 30 cm high and less than 
3 cm wide; it agrees better than No. 106 with the description of E. ooides. It 
is a relative of H. blumeanum Spr. 
2. H. dilatatum (Forst.) Sw. 
No. 186, Goodenough Bay. 
Malaya to New Zealand. 
Identification not positive as the specimens are sterile. 
3. H. Reinwardtii v. d. Bosch. 
No. 210, Goodenough Bay, altitude 1,200 m. 
Java, Sumatra. 
Smaller and much more crisped that the form figured by van den Bosch, but 
otherwise not different. 
