american samoa - University of Hawaii at Manoa

ipinnate lamina, lanceolate pinnules 10-20 cm long
having an enlarged base, and sori of 7-12 sporangia
free from each other, in a dense row 1-2 mm from
the margins. Common in lowland to cloud forest,
reported from near sea level to 1400 m elevation.
Indigenous, ranging from Malaysia to Tahiti. Saf-
Sortl 404 I; McMullin 17; Comstock s.n.; Sctchell
38, 207; Eames 727; Garber 838; Long 1950; Whi-
stler 8975!, 9125.
Angiopteris opaca Copeland
nase
Large terrestrial fern similar to the preceding spe-
cies, but with rachis and stipe densely scaly rather
than bearing scattered hairs. Occasional in lowland
to montane forest, reported from 50 to 600 m eleva-
tion. Indigenous, also found in Fiji. Christophersen
99 1 ; Whistler 9047!, 9198.
Marattia smithii Mett.
nase
Large terrestrial fern similar to the preceding two
species, but with sporangia fused laterally to form a
single structure. Uncommon in montane forest,
reported from 400 to 600 m elevation. Indigenous,
ranging from Vanuatu to Samoa. Wilder s.n.;
Sledge 1823; Whistler 8734!, 9090,9197.
OPHIOGLOSSACEAE
Ophioglossum pendulum L.
Epiphytic fern with a small rhizome, pendulous,
strap-shaped fronds 40-120 cm long, and sori
embedded in a spike attached to the center of the
frond. Uncommon in coastal to montane forest,
reported from near sea level to 550 m elevation.
Indigenous, ranging from Madagascar to Hawai'i.
Lamoureux 3001; Sledge 1822; Whistler 2818,
2926, 300 1, 8746!.
*Ophioglossum reticulatum L.
Tiny terrestrial fern with a single ovate lamina and
sori embedded in a single erect spike. Uncommon
in lowland to cloud forest, reported from 300 to
1700 m elevation. Indigenous, ranging from tropi-
cal Asia to Polynesia. Powell 127.
POLYPODIACEAE
*Dipteris conjugata Reinwardt
Large terrestrial fern with a creeping rhizome, re-
mote stipes,veins dichotomously branched, lamina
divided to the base into two spreading halves, these
divided into four lobes which arc further divided,
and numerous sori scattered on the lower surface.
Locally abundant in montane scrub, reported from
500 to 650 m elevation. Indigenous, ranging from
Thailand to Samoa. Reinecke 173; Setchell 380;
Garber 784; Christophersen 1034, 3564; Sledge
1832; Whistler 2714,9162.
*Lemmaphyllum accedens (Bl.) Donk
Small epiphytic fern with a long-creeping rhizome,
short stipes, dimorphic fronds, the sterile ones
elliptic to ovate, the fertile ones similar but with an
attenuate tip, and sori in a single row on both sides
of the midrib of the upper attenuate part. Occasional
in lowland to montane forest, reported from 300 to
900 m elevation. Indigenous, ranging from Malaysia
to Samoa. Graeffe 459 (n.s.); Powell 93? ("Manua
and Tutuila"); Whistler 9093, 9186.
Microsorium sylvaticum (Bracken.) Copeland
Large terrestrial fern with a creeping rhizome, sim-
ple, deeply lobed, simply pinnate fronds up to 2 m
in height, and numerous tiny sori scattered
irregularly over the lower surface of the lobes.
Occasional in lowland to montane forest, reported
from 25 to 850 m elevation. Indigenous, apparently
ranging eastward to Tahiti. Kuruc 151; Whistler
3842, 8501,8557!.
Phymatosorus nigrescens (Bl.) Pichi Serm.
Medium-sized terrestrial fern with a stout, creeping
rhizome, frond deeply cut into 1-10 pairs of lobes
(or sometimes simple and lanceolate), and deeply
embedded sori forming conspicuous tubercles on the
upper surface. Occasional in lowland to montane
forest, reported from 200 to 1000 m elevation. Indi-
genous, ranging from Fiji to Tahiti. Christophersen
997; Long 1996d; Whistler 8643!, 9132.
Phymatosorus scolopendria (Burm, f.) Pichi Serm.
lau auta; lau magamaga
Large terrestrial or epiphytic fern with a long-
creeping, scaly rhizome, simple, glossy-green