x, c. 2 Copeland: Notes on Bornean Ferns 147 
ATHYR1UM CYATHEIFOLIUM (Rich.) Milde. 
No. 2332, Mount Santubong. 
Not previously reported from Borneo; identical with the Philippine 
plant which I recognize under this name (Cf. Philip. Journ. Sci. 3 (1908) 
Bot. 293). 
The group is represented in Sarawak by Athyrium Hewittii, A. sarawak- 
ense and A. muricatum, and the nearly related A. polycarpum. D. Don in 
Prod. FI. Nepal. 8, describes Asplenium latifolium and A. maximum as dis- 
tinct species, giving short diagnoses, in which the most salient distinguishing 
character is that the former has alternate and the latter opposite pinnae. 
Although the two names are commonly treated as synonyms, I have little 
doubt that they are distinct, and suspect that A. maximum is a relative of 
A. cyatheifolium. Asplenium latifolium is represented unmistakably in 
my herbarium, but I have nothing from near Nepaul which I can call A. 
maximum. Clarke (Trans. Linn. Soc. Bot. 1 (1880) 503) says “What 
A. maximum, Don, Prodr. FI. Nep. 8, may have been can only be guessed; 
but from Don’s description of the sori I should guess it to have been A. 
polypodioides.” But this it surely cannot be. 
ATHYRIUM PARIPINNATUM Copel. sp. nov. 
Species gregis A. cyatheifolii, stipite 45 cm alto, muricato; 
fronde 1 m alta; pinnis oppositis, infimis 25 cm longis, cum 
petiolis 3 cm longis, pinnatis, pinnulis subsessilibus medialibus 
6 cm longis ad baseos subhastatas 15 mm latis inciso-serratis, 
acuminatis, infimis minoribus; pinnis medialibus majoribus et 
brevius stipitatis; pinnarum supramedialium pinnulis adnatis 
vel confiuentibus, ellipticis, 2-3 cm longis, apice rotundatis, ser- 
rulatis; pinnis superioribus profunde pinnatifidis; pinnis liberis 
supremis 15 mm longis, 4 mm latis, vix serrulatis; apice pin- 
natifida frondis breve et parva; rhachibus castaneis, glabris; 
lamina subcoriacea gabra, interne pallida ; soris angustis, costam 
attingentibus, margine hie approximatis illuc et saepius remotis, 
indusio plerumque simplice. 
No. 2658, Mount Merinjak. 
The most conspicuous difference between this and the more ample forms 
of Athyrium cyatheifolium is the spiny stipe. My specimen of A. muri- 
catum is very distinct in appearance, but I suspect that it may sometimes 
be compound enough to be very like A. paripinnatum. The apex, however, 
should still be distinctive. A. muricatum has a big and coarse pinatifid 
apex, the highest free (but adnate) pinnae being 4.5 cm long and 12 mm 
wide. Athyrium Hewittii has an apex like A. paripinnatum, but its 
diminutive pinnules give the whole frond a very different appearance. 
This species can be transferred to Diplazium with perfect ease and 
certain tly, provided the transfer is not complicated by an attempt to find 
tenable distinctions between the genera. 
LEUCOSTEGI A IMMERSA Presl. 
A sterile specimen from Mellinau, upper Baram, collected in November, 
1910, by the Sarawak Museum, is almost certainly this species. Not pre- 
viously reported from Borneo. 
