1002 , FILICES. [Nephrodiwm. 
Rhizome short, tufted. Fronds 9-18in., reddish-brown, 
both surfaces clothed with short velvety pubescence .. 4. N. velutinum. 
Rhizome short. Fronds 1-3 ft., ovate or ovate-lanceolate, 
pale-green, membranous; rhachises and under-surface 
with fine spreading hairs .. .. 5. N. setigerum. 
Rhizome long, stout, creeping. Fronds 1- 2 ft., "ovate del- 
toid, coriaceous, finely 2-4-pinnate. Stipes and rhachis 
densely hispid with rigid linear bristles aA .. 6. N. hispidum. 
Subgenus II. EunrpHropium. Veins in regular pinnate growps, the lower 
veinlets of each group united at the tips with those of the adjoining 
groups. 
Rhizome long, creeping. Fronds 6-18 in., rather rigid ; 
lower pinne not reduced in size a's Bee .. 7. N. unitum. 
Rhizome short. Fronds 1-3 ft., soft and membranous, 
finely pilose; lower pinne gradually reduced in size .. 8. N. molle. 
1. N. Thelypteris, Desv. in Mém. Soc. Linn. vi. 257; var. 
squamulosum, Schiecht. Fil. Cap. 23, t. 11.— Rhizome long, 
slender, creeping, branched. Stipes 4-12in. long, slender, straw- 
coloured, darker at the base, smooth, naked or slightly scaly when 
young. Fronds scattered along the rhizome, 6—12 in. long without 
the stipes, rarely more, 2—5in. broad, linear-oblong or lanceolate, 
acuminate, truncate at the base, pale-green, membranous, glabrous. 
except the costs and rhachis which are sparsely clothed beneath 
with pale broad convex scales, pinnate. Pinne opposite or nearly 
so, 1-24in. long, 4-4in. broad, linear-oblong, deeply pinnatifid. 
Segments 4-Lin. long, oblong, ‘obtuse or subacute, quite entire, 
broader and flatter in the sterile frond than in the fertile. Veins. 
free, the lower or nearly all forked. Sori numerous, small, in two 
rows, rather nearer the recurved margin than the midrib. In- 
dusium cordate-reniform, glandular-ciliate-—Hook. Sp. Fil. iv. 88 ; 
Handb. N.Z. Fl. 877; Hook. and Bak. Syn. Ful. 271; Thoms. 
N.Z. Ferns, 81; Field, N.Z. Ferns, 180, t. 18, f. 8. N. squamu- 
losum, Hook. f. Fl. Nov. Zel. 1. 39. 
Nortu Istanp: Marshes from the North Cape to the Hast Cape, Taupo,. 
Whanganui, and Otaki, but often local. Sea-level to 2000 ft. 
The typical form of the species is found in Hurope, north Asia, the 
Himalayas, and North America; the var. squamuloswm, which differs chiefly 
in the scales on the under-side of the rhachis and cost, appears to be confined 
to New Zealand and South Africa. 
2. N. decompositum, &. Br. Prodr. 149.— Rhizome long,. 
slender, creeping, branched, more or less clothed with chafty 
scales. Stipes 6-18in. long, firm, erect, scaly towards the base, 
villous-pubescent above. Fronds scattered along the rhizome, not. 
tufted, 9-18in. long without the stipes, often almost as broad, 
ovate-deltoid or pentangular, acuminate, membranous or sub- 
coriaceous, pale-green, more or less finely villous or pubescent, 
2-pinnate above, 3-pinnate below; rhachis and coste slender,_ 
villous-pubescent. Primary pinne 4—9in. long; the lowest pair- 
