Page:Manual of the New Zealand Flora.djvu/976

936 yellow-green, membranous, glabrous or sparingly silky along the rhachis and sometimes on the margins, 2–3-pinnatifid. Stipes slender, terete, wingless, glabrous except a tuft of silky hairs at the base; main rhachis winged towards the top, wingless elsewhere. Primary pinnæ often close and overlapping, short, rhomboidal-ovate or flabellate, acuminate; secondary cuneate at the base, deeply pinnatifid. Ultimate segments linear, flat, entire. Sori small, terminal on the segments, usually on the lateral ones, slightly immersed at the base. Indusium orbicular or nearly so, 2-valved to below the middle; valves usually entire.—''Hook. Sp. Fil. i. 111; Hook. f. Fl. Nov. Zel.'' ii. 15; ''Handb. N.Z. Fl. 356; Hook. and Bak. Syn. Fil. 61; Benth. FL Austral.'' vii. 705; ''Thoms. N.Z. Ferns, 42; Field, N.Z. Ferns, 57, t. 19, f. 6. H. nitens, R. Br. Prodr. 159; A. Rich. Fl. Nouv. Zel. 91; A. Cunn. Precur. n. 236; Raoul, Choix,'' 39.

11. H. rufescens, ''T. Kirk in Trans. N.Z. Inst.'' xi. (1879) 457, t. 19a.—Very delicate, forming mats on the trunks of trees or on the perpendicular faces of shaded rocks. Rhizome very slender, almost filiform, branched, creeping, sparingly clothed with soft spreading hairs. Stipes much longer than the frond proper, 1–2 in., capillary, wingless, clothed when young with long flexuous hairs. Fronds ½–1½ in. long, ½–¾ in. broad at the base, deltoid, delicately membranous and pellucid, 2-pinnatifid; rhachis winged almost to the base, and with the veins and occasionally the surfaces of the frond more or less covered with long flexuous silky hairs. Pinnæ 3–4 pairs, close, overlapping, cuneate-rhomboid or the lowest almost flabellate, deeply pinnatifid or lobed. Segments linear, obtuse, flat, quite entire. Sori terminating the segments, slightly immersed at the base. Indusium ovate-orbicular, 2-valved to the base; valves entire or slightly toothed, often ciliate.—''Bak. in Annals of Bot. v. (1890-91) 192; Thoms. N.Z. Ferns, 43; Field, N.Z. Ferns,'' 63, 1. 15, f. 6.