-L soryekey sS Wispid Vir (Susa2) Mumtae 
Fawn Krovle Ps 
Dryopteris. | FILICES. 33 
Subgenus II. Puxcorreris. Veins all Jree. Indusiwm absent. 
Stipes continuous with the rhizome. Fronds large, 2—4-pinnate, 
glandular-pubescent 6. D. punctata. 
Subgenus III. Gontopreris. Veins pinnate in the lobes, the lower veinlets uniting at 
the tips with those of the adjoining lobes. Indusium absent. 
Stipes continuous with the rhizome. Fronds large, 2—5 ft., pinnate, 
membranous, glabrous or nearly so .. 7. D. pennigera. 
Subgenus IV. Cyonosorus. Veins pinnate in the lobes, the lower veinlets uniting at 
the tips with those of the adjoining lobes. Indusium present. 
Rhizome short. Fronds 1-3 ft., soft and membranous, finely pilose ; 
lower pinnae gradually reduced in size - i .. 8 D. parasitica. 
Rhizome long, creeping. Fronds 6-18 in., rather rigid ; lower 
pinnae not reduced in size . 24 £ ; 
Yes / i 
1. D. Thelypteris Asa Gray Man. Bot. U.S.A. ed. 1 (1848) 630; var. 
squamulosum Schlecht. Fil. Cap. 23, t. 11—Rhizome long, slender, creep- 
ing, branched. Stipes 4-12 in. long, slender, straw-coloured, darker at the 
base, smooth, naked or slightly scaly when young. Fronds scattered along 
the rhizome, 6-12in. long without the stipes, rarely more, 2-5 in. broad, 
linear-oblong or lanceolate, acuminate, truncate at the base, pale-green, 
membranous, glabrous except the costae and rhachis which are sparsely 
clothed beneath with pale broad convex scales, pinnate. Pinnae opposite 
or nearly so, 1-24in. long, 4-4 in. broad, hnear-oblong, deeply pinnatifid. 
Segments §-+1n. 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. Indusium cordate-reniform, glandular- 
ciliate-—Nephrodium Thelypteris Hook. Sp. Fil. iv (1863) 88. Hook. f. 
Handb. N.Z. Fl. (1864) 377; Hook. and Bak. Syn. Fil. (1873) 271; Thoms. 
N.Z. Ferns (1882) 81; Field N.Z. Ferns (1890) 130, t. 13, £.3 ; Cheesem. Man. 
N.Z. Fl. (1906) 1002. N. squamulosum Hook. f. Fl. Nov. Zel. ii (1855) 39. 
Nort Istanp : Marshes from the North Cape to the East Cape, Taupo, Wanganui, 
and Otaki, but often local. Sea-level to 2000 ft. 
The typical form of the species is found in Europe, north Asia, the Himalayas, and 
North America ; the var. syuamulosum, which differs chiefly in the scales on the under- 
side of the rhachis and costae, appears to be confined to New Zealand and South Africa. 
9. D. gongylodes. 
2D. decomposita O. Kuntze Rev. Gen. Pl. ii (1891) 812.—Rhizome 
long, slender, creeping, branched, more or less clothed with chaffy scales. 
Stipes 6-18 in. long, firm, erect, scaly towards the base, villous-pubescent 
above. Fronds scattered along the rhizome, not tufted, 9-18 in. long with- 
out the stipes, often almost as broad, ovate-deltoid or pentangular, acumi- 
nate, membranous or subcoriaceous, pale-green, more or less finely villous 
or pubescent, 2-pinnate above, 3-pinnate below ; rhachis and costae slender, 
villous-pubescent: Primary pinnae 4-9 in. long; the lowest pair much the 
largest, unequally deltoid with the basal secondary pinna on each side much 
longer than the rest; upper pinnae gradually smaller, ovate-lanceolate. 
Secondary pinnae lanceolate, deeply pinnatifid or the lower again pinnate ; 
ultimate segments close, unequal-sided, ovate-rhomboid to lanceolate-rhom- 
boid, acutely toothed or lobed. Sori rather large, distant, nearer the margin 
than the midrib. Indusium orbicular-reniform.—Nephrodium decomposi- 
tum look. f. Fl. Nov. Zel. ii (1855) 39, t. 79; Handb. N.Z. Fl. (1864) 378 ; 
Hook. Sp. Fil. iv (1862) 146; Hook. and Bak. Syn. Fil. (1873) 281: Thoms. 
2—FI. 
Riy: 
Bes T 
