248 711, 714, 755, 763, 1391, 1581, 1582, 1583, 1599, 1605, 1606, 1612, 1613, 1617,
1623, 1640, 1651, 1339; Raciborski s.n. Telaga Warna, s.n. Kota Batu, s.n. Mt. Guntur; Rumka s.n. 18-11-1829; Sapiin 2677; Scheffer s.n. 3-9-1870;
Schiffner s.n. 27-2-1894, s.n. 5-1-1894; Ciets 12; Vriese s.n. 5-5-1926; Winckel 1248B, 1281B, 1413B, 1422B; Wisse 627. --- SUMATRA: P. Buwalda
6340; Dr. P. Buwalda 6340. --- MALAY PENINSULA: Md Nur SFN 32937, King F90, King 10849; Ridley 14206; A.G. Piggott 26; Md Nur SFN 11515; R.E.
Holttum SFN 9770. SUMATRA: T.Ng. Praptosuwiryo 2242. NOTES. I justify Athyrium ophiodontum Copel. as new synonym of D.
polypodioides Bl. The size of the middle pinnae, 11 x 3 cm, is slightly larger than
that recorded for D. polypodioides in Holttum 1940. Otherwise there is no differences between the Philippine specimen and the materials from BO and
SING.
47. Diplazium porphyrorachis Baker Diels
Diplazium porphyrorachis Baker Diels, Nat. Pfl. 1 4: 225. 1899; Price,
Gard. Bull. S.S. 36 1: 28. 1983. Asplenium porphyrorachis Baker, J. Bot. 17: 40. 1879; Icon. Pl. 17, t.1650. 1886; C.Chr., Gard. Bull. S.S. 7: 279, p.p. 1934;
Athyrium porphyrorachis Baker Copel. Philip. J. Sci. 3C: 300. 1908;
Polypodium subserratum Hook. Sp. Fil. 4: 202. 1863 non Diplazium subserratum
Blume Moore, 1861. Type: Borneo, prob. W. Sarawak, A.R. Wallace s.n. 1855 K.
Rhizome erect or short-creeping, bearing weary roots, clothed with lanceolate-acuminate, dark-brown scales at the extremity. Stipes ca. tufted, firm,
slender, 5-50 cm long, scaly at the base, black-hairy or scaly above, the hairs or scales deciduous; scales 2 mm long, 0.25 mm broad, dark brow, stiff, deciduous.
Lamina pinnatifid, 16-25 cm long, 3.5-5.5 cm broad, lanceolate, apex lobed or toothed, the lower 23–67 deeply pinnatifid into many or numerous, close,
spreading, subfalcate, linear oblong, blunt, slightly crenate, serrate or toothed segments 8-15 mm broad, which have not seldom the sides entire and only the
apex serrate; lower segments gradually growing smaller, the 1-4 lowest free and deflexed; texture subcoriaceous; rachise and under surface slightly covered with
249 scattered scales; veins distinct, mostly once forked. Sori oblique, parallel,
reaching ca. the edge; indusia dark brown, persistent, margin entire, opening when mature.
SPORES. Monolete, bilaterally summetrical made asymmetric by perine, heteropolar; polar outline excluding perine transversely elliptical, sides
convex; equatorial longitudinal view excluding perine plano-convex, ; equatorial tranverse view, proximal, proximal face planar, distal convex; perinate. E:
39.8946.3950.98±3.53, P: 21.7427.5730.49±2.87. Laesura: concealed by perine. Perine: alate to costate-alate, alae sometimes anastomosing forming loose
reticulation; irregular envelope, separated from exine, surrounds the spore in loose anastomosing wing, forming a very loose reticulation, reticulation often
incomplete; lacunae very irregular polygons, 10-16 m across; muri thin, wing like muri project 1.5-9.0 m; terminating margin ciliate or papillate; surface of
perine holed, holes irregular and formed by fallen papillae CHROMOSOMES. 2n = 164 Cytotype: T.Ng. Praptosuwiryo 1885,
BO. DISTRIBUTION. Malay Peninsula, Borneo, Celebes v.A.v.R., 1908
ECOLOGY. Terrestrial on on small river banks in the forest shade at 200- 1270 m sea level.
VERNACULAR MANES. Paku tuot Dayak SPECIMENS EXAMINED. --- BORNEO. East Kalimantan: Tabang 32
km point, West Kutai, M. Kato H. Wiriadianata B-6159; G. Kongkat-G. Kongbotak, Alt. 350-200, Masahiro Kato Harry Wiriadianata B-5176;
Masahiro Kato Harry Wiriadianata B-5259; Masahiro Kato Harry Wiriadianata B-6348; Masahiro Kato Harry Wiriadianata B-6879; Masahiro
Kato Harry Wiriadianata B-4733; Masahiro Kato Harry Wiriadianata B- 6214; T.Ng. Praptosuwiryo 1845, 1883, 1884, 1885, 1890, 1925, 1936.
NOTES. As noted by Price 1983, D. porphyrorachis is very closely related with D. lomariaceum and some specimens shown sign of apparent gene
interchange. He shows the different of the two species in the key with characters combination as follow. D. lomariaceum has scales blackish that numerously bear
on stipe, rachise, costae and vein beneath, and also present above where costae
250 and meet rachis; frond narrowing gradually towards base, drying dark greenish
brown. While D. porphyrorachis reveals scales brown that present on stipe, rachis, and costae beneath; frond not or only moderately narrowed downwards,
drying dull grayish brown.
48. Diplazium prescottianum Wall. Moore Diplazium prescottianum Wall. ex Hook Moore
