FERNS OF THE MALAY-ASIATIC REGION. 
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2. Gleichenia vulcanica Bl. 
Like the preceding, but more alpine in habit, more densely pubescent, 
the larger scales 1.5 to 2 mm long, eiliate rather than deeply lacerate, 
and usually reddish- or greyish-brown. Stunted specimens are not at 
all forked, bearing the “pinnules” directly on the unbranched main axis 
of the frond. 
Java, Celebes, Philippines. 
3. Gleichenia amboinensis v.A.v.R. Bull. Dep. Agr. Ind. Neerl. 18 (1908) 3. 
Fronds 50 to 100 cm high, dichotomous at the apex, otherwise pinnate; 
rachis clothed with deciduous, tomentose or furfuraceous pubescence; 
pinnae 2 or 3 pairs, erecto-patent, the upper ones dichotomous, the lowest 
pinnate, dichotomous at the apex ; pinnules dichotomous, all their branches 
foliaceous, deeply pinnatifid; segments linear-oblong, obtuse, crenate, 
subcoriacous, usually glacous beneath, 1 to 2 cm long, about 2 mm wide, 
the lowest ones usually reduced and suborbieular ; the ultimate branches 
acuminate, with coarsely toothed apex; costa? with a deciduous pubescence. 
Amboyna, Burn. 
4. Gleichenia hirta Bl. (6r. dolosa C'opel.) 
Frond, including stipe, often 1.5 m or more high ; stipe very stout, 
brown-scaly at the base, younger axes bearing a pale scurf and eiliate, 
lanceolate, brownish scales 1.5 mm long; rachis forked at the top but 
with a terminal bud of apparently indeterminate growth, and below this 
usually 2 to 4 pairs of pinna?, which are 3 or 4 times forked and foliaceous 
above the second fork from the bottom ; ultimate branches up to 25 cm 
long; segments up to 13 mm long and 2.5 wide, not quite horizontal, 
just in contact at the base, serrulate at the apex and rather obtuse, 
herbaceous, glabrous above but not beneath, usually very glaucous beneath ; 
sori of 3 or 4 sporangia. A beautiful plant. 
Philippines, Moluccas: Java? 
5. Gleichenia hispida Mett. 
Fronds 50 to 100 cm high, stipe very stout and brittle, younger axes 
densely ferruginous-felty, and the growing tips buried in felt, the palea? 
sparsely long-ciliate; rachis forked at apex, and below this bearing 1 to 
3 pairs of pinna? which are usually 3 times forked and foliaceous through- 
out; segments not quite horizontal, mostly straight, up to 22 mm long, 
about 1.5 mm wide, acute, moderately revolute, distinct and separated by 
their own width, coriaceous, glabrous above; sori mostly of 4 sporangia. 
O. koordersi Christ seems to be a rather depauperate form of this species. 
Java, Celebes, Ternate and Luzon, on mountain tops. 
0. Gleichenia vestita Bl. 
Fronds 50 to 100 cm high, the axes clothed with brown scales 3 to 5 
mm long, 1 mm wide ; rachis light brown, forked at the apex, and below 
this bearing one or more pairs of pinnae which are 1 to 3 times forked 
