TAB. LXXIX. 
Antrophyum Brookei, Hook, 
Caudice repente subulate » squamoso densissime olivaceo- 
tomentoso, frondibus cajspitosis membranaceis flaccidis 3- 
pollicaribus ad spitham 80 am lineari-lanceolatis acuminatis 
basi attenuatis sessllibus ecostatis, soris anguste linearibus 
2-4 seepe longe continuis simplicibus nunc interruptis et 
parce ramosis immersis, venis anastomossantibus areolas 
valde elongatas margin! parallelas formantibus, capsulis pilis 
articulatis intermixtis. 
Hab. On trees, Sarawak, Borneo, Thos, Lohh, Naviti Levu, 
Fiji Islands, on mountains, Milne, in Yoy. of H.M.S. Herald. 
Samoan Islands, Rev, Mr, Parker, 
The caudex of this is creeping, but as well as the roots, often 
densely covered with a mass of olivaceous tomentum, so as 
scarcely to be visible. Where the tufts of fronds arise the 
caudex is seen to be paleaceous with subulate scales. Fronds 
membranaceous, flaccid, three inches to a span, or almost a 
foot long, one-third of an inch wide in the broadest part, 
narrow, linear-lanceolate, accuminated, ecostate, much taper- 
ing below, but not stipitate; a darkish line indeed runs through 
the very narrow base, but nothing that can be called a mid- 
rib. The sori vary in form. In one specimen two uninter- 
rupted longitudinal lines run for a length of five inches between 
the centre and the margins, and a third but shorter continu- 
ous line appears between one of these and the margin; in 
other specimens the sori form two to four somewhat parallel 
lines, here and there branched and variously interrupted ; all 
are sunk in a channel or groove in the substance of the frond, 
and all arise from the veins which run longitudinally, while 
oblique veinlets unite them so as to form very elongated 
areoles. 
I can no where find any Fern described corresponding 
with this. It seems to approach the Antroph, angustatum of 
Brack enridge from Tahiti; but that has a stipes four inches 
long. It very much resembles in general aspect the Antroph, 
lineatumj Kaulf. (Polytaenium lineatum, Desv, and Hook, 
Gen. Fil. Tab. CYII.), but that has copious parallel sori and a 
distinct costa. Our Antrophyum Galeottii (see Tab. LXX, 
of this volume), has the areoles and sori oblique. 
Tab. LXXIX. Fig. 1 & 3. Antrophyum Brookei^ Plook. ; 
fertile plants ; natural size, f. 2. Portion of a frond, showing 
the venation, f. 3. Grooved receptacle of the capsules. 
f, 4. Capsule and accompanying articulated hairs ; magnified. 
CiSNT. 2. T, 79. 
