AN EXPEDITION TO MOUNT BATU LAWI. ‘fal 
APPENDIX III. 
The Ferns of the Batu Lawi Expedition. 
By E. B. CopELAND, DEAN OF THE COLLEGE OF 
AGRICULTURE, Los Baros. 
Of the fifteen species sent, four and probably five are new to 
science. Besides these, there is one which cannot be specifically 
determined and one which has never been collected except in 
Borneo ; the others are all of sufficiently General distribution in the 
Malayan region so that they do not point in one direction more 
than in any other. 
The most notable thing about the collection is the very large 
proportion of new species. ‘The other striking thing about it is 
the strong representation of the genus Plagiogyria. So far as its 
species are known, the large majority come from further north than 
Borneo, and this might be taken as a sign that Batu Lawi with 
its high elevation has a striking representation of Philippine and 
more northern plants. 
The determinations are as follows :— 
Polypodium heterocarpum, (Bl.) Mett. 
Polypodium soridens, Hook., a very small and compact form. 
Lycopodium cernuum, L. 
Athyrium Moulton, Copel., n. sp. 
Stipite usque ad 90 cm. alto, gracile, nitido, nigro, inerme, 
praecipue deorsum paleis nigris plerisque deflexis vestito; 
fronde 60 cm. vel ultra alta, 50 cm. lata, tripinnata, rhachibus 
nigris minute paleatis; pinnis usque ad 25 cm. longis, ca. 6 
em. latis, brevi-stipitatis, acroscopicis longioribus 4 cm. longis, 
1 em. latis, acuminatis; pinnulisii infimis solummodo liberis, 
sessilibus, serratis, obtusis, lineari-oblongis, 1.5 mm. latis, pa- 
pyraceis, infra pallidis, costa venisque nigris ; costa et interdum 
venis squamuliferis, venis utroque latere 2 vel 3, simplicibus; 
soro costale, breve, indusio brunneo, tenue. 
Bukit Lawi, Ulu Limbang, May 28, 1911. In color, and 
in some other details, like A. atratwm (Christ_sub Diplazio), 
but much more finely cut. The specimen sent is three fronds 
of which only one is in fruit, and it very sparingly; it is there- 
fore probable that the species reaches a considerably larger 
size than is here indicated. 
Ho cere See 
5. Balantwum pilosum, Copel., n. sp. 
Stipite 20 em. vel ultra alto, castaneo-purpureo, decidue 
hirsuto indeque asperulo; fronde 30 cm, alta, 15 em. lata, 
subdeltoidea, quadripinnatifida, rhachibus ubique pilis rufo- 
castaneis densissime vestitis; pinnulis stipitatis, 3 cm. longis, 
deltoideis; pinnulisii infimis 8 mm. longis, 5 mm. latis, obli- 
R. A. Soc., No. 63, 1912. 
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