13598. Folypodium validum Copel. Rigid tufts 
upon the nether side of large bowldere lying in very 
moist densely wooded banks of the Catangan creek at 
1500 feet in a rather narrow cut; rhizome 6/4 inch thick, 
few inches long, unbranched, rigid, green and blackish 
seale covered; rigid etipes aseending, dark ereen 
clear to the base, except the lower side, flattened 
above; fronds also rigid and essily bresking, aseending 
but recurved toward the apex, very deep green sbove, 
paler benesth, nearly flat, margine coarsely wavy, 
leathery young sori pale green, flavus when old; in 
Keanobo “Bugtune." Cabadbaran, August, 1912. 
3 3599. Agplenium griseum Copel, Tufte in or 
upon the lower side of tree trunks along the Catafican 
ereek in amoist narrow passage at 1500 feet; rhizome 
1.1/2 ineh thick, eparingly branched, brown seale covered: 
stipes descending, subterete, nesrly black beneath 
teward the baee, dull green above, 2 to 3 feat long, 
with fine lateral stripes; fronds nearly twiee ae lone, 
hanging or nearly so, heavy, flexible; pinnee a trifle 
descending, rigidly coriaceous, very dark green above, 
much paler beneath ,the =# slender tips recurved, other- 
wiee neerly flat but marginal sides coarsely and 
irregulargZy wavy; "“Dapog"” in Manobo. Cabadbaran, 
August, 1912, 
15600. Ampelocisesus ochraces (T, & B.) Merv, 
Scandent and sprawling over jungles and tree tops of a 
humid gorge along the Cateangan creek at 1500 feet: 
stem very flexible, less than 1/2 inch thick, subterete, 
with & large whitish pith and covered with smooth 
wx brown bark only speringly branched but the green 
wranchlets very long; leaves horizontal or deecending, 
coriaceous, when young whitish lanose beneath, when 
old fulvus, the green peduncle covered with the same 
colored hairs; tendrils greenish, terete, opposite 
the leaves; infruteseence arising from the same plece, 
pendant, upon brown 10 inches long stalks, the grape- 
like cluster sbout as long; fruits subglobose, less 
than 1/2 inch aeross, 2-seeded shining reddtsh brown 
on the exposed sides, otherwise yellowish; "Ambac" 
in Manobo. Cabadbaran, August, 1912. 
15602, Froeris fruteseens nervose Blm. n, var, 
Reclining shrub upon mos covered large bowlders on 
the summit of Duroe at 4000 feet; stem nearly 2 inches 
thick, terete, 5 to & feet hich, crooked, branched 
from below the middle; wood derk brown, odorless and 
without taste, rather hard and Closely grained, the 
duller brown pith quite prominent; bark relatively 
thick, brown, coarsely but deeply checked; branches 
reclining, freely rebranched, the ultimate ones slender 
and descending; leaves heavy and suceulént, dese ending 
or horizontally spreading, very dark green above, much 
paler beneath, flat or only tips recurved, the veins 
very prominent beneath as are aleo the depression on 
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