american samoa - University of Hawaii at Manoa

of the costa. Uncommon in montane to cloud forest,
reported from 600 to 1500 m elevation. Indigenous,
also found in I-lawai'i and Fiji. Sine coll, s.n. (at
Kew); Christophersen 3543.
HY MENOPHYLLACEAE
Ilyn~cnopliyllu~n irnbricatum BI.
Medium-sized filmy fern with a widely creeping
rhizome, winged rachis, spaced fronds up to 25 cm
long, 2- to 3-pinnatifid lamina, lobes narrowed
below the tip, and a globose sorus enclosed within
the suborbicular lips of the indusium. Locally
common in montane to cloud forest, reported from
500 to 1600 m elevation. Indigenous, ranging from
Sumatra to Tahiti. Setchell 392; Long 3059;
Whistler 8636!, 8735!, 9043!.
Hymenophyllum polyanthos Sw.
Small filmy fern with a widely creeping, wiry
rhizome, winged rachis, spaced fronds 5-25 cm
long, 2- 3-pinnatifid lamina, lobes wider than the
sorus, and the obovate sorus enclosed within the
rounded lips of the indusium. Occasional in
lowland to montane forest, reported from near sea
level to 1000 m elevation. Indigenous, widely
distributed in the wet tropics. Reinecke 175;
Christophersen 1056, 113 1 !, 1195, 1196, 1214,
3529; Whistler 8543!, 8713!, 8998!, 9042!, 9089!.
*Hyrnenophyllum praetervisum Christ
Small epiphytic filmy fern with a long-creeping
rhizome, unwinged stipes, thin fronds, lamina 1-2
cm wide with toothed margins, and a sorus enclosed
within a turbinate indusium having dentate margins.
Uncommon in montane to cloud forest, reported
from 500 to 1300 m elevation. Endemic. Reinecke
88b.
"Trichomanes apiifolium Presl
Medium-sized terrestrial fern with an erect rhizome,
stipes covered with long reddish hairs, 3-4-pinnati-
lid fronds up to 50 cm high, and a sorus enclosed
within a tubular indusium. Uncommon in montane
forest, reported from 425 to 900 m elevation. Indi-
genous, ranging from the Philippines and Malaysia
to Samoa. Veitch s.n.; Reinecke 115, 174.
*Trichomanes bimarginatum van den Bosch
Tiny epiphytic fern with a creeping rhizome covered
with dark, simple hairs, short, dark hairy stipes, a
simple, oblong to obovate lamina less than 2 cm
long, 1-3 sori on the lamina apex, and an immersed
tubular indusium. llncommon in montane to cloud
forest, reported from 400 to 1100 n~ elevation.
Indigenous, ranging from Ceylon to Samoa.
Reinecke sen.
Trichomanes bipunctatum Poiret
Small epiphytic fern with a slender, long-creeping
rhizome, deltoid-ovate, tripinnatifid fronds 4-8 cm
long with a submarginal, false vein in the segments,
and a sorus enclosed within a tubular indusium.
Uncommon in lowland to cloud forest, reported
from near sea level to 1200 m elevation. Indige-
nous, ranging from Madagascar to Tahiti. Reinecke
135; Christophersen 1 145!; Whistler 8699!, 8991 !,
9334!.
Trichomanes boryanum Kuntze
Small to medium-sized terrestrial fern with an erect
rhizome, tufted, pinnate fronds with narrowly
oblong pinnae, and a sorus enclosed within a tubular
indusium located on the upper margins of the upper
pinnae. Occasional to common in lowland to mon-
tane forest and in streambeds, reported from near
sea level to 800 m elevation. Indigenous, ranging
from the Vanuatu to Samoa. Garber 884 (n.s.);
Christophersen 112 1 !, 1144!; Meebold 16865;
Yuncker 93 15; Long 3 112; Whistler 8644!, 8731 !.
*Trichomanes caudatum Bracken.
Small epiphytic filmy fern with a creeping rhizome,
a rachis winged in the upper part only, lanceolate
tripinnatifid fronds 5-30 cm long, sori conspicuous
on short axillary segments or terminal, and a cylin-
drical indusium. Rare in montane to cloud forest,
reported from 600 to 1200 m elevation. Indigenous,
ranging from Australia to Tahiti. Veitch s.n.
Trichomanes dentatum van den Bosch
Small terrestrial fern with an erect rhizome,
clustered fronds with a tripinnatifid, broadly deltoid
lamina up to 20 cm long, few hairs on the rachis,