Page:Manual of the New Zealand Flora.djvu/974

7. H. dilatatum, Swartz, Syn. Fil. 149, 373.—Large, very handsome, bright-green, clothing the trunks of trees or rotten logs. Rhizome long, stout, wiry, glabrous. Fronds variable in size, usually 9–18 in. long including the stipes, but luxuriant specimens often reach 2 ft. or more, the smaller specimens erect or decurved, the larger usually pendulous, 3–6 in. broad, ovate or ovate-lanceolate to linear-oblong, membranous, 3-pinnatifid. Stipes 2–6 in. long, terete, wiry, narrowly winged almost to the base; rhachis winged throughout, the wing flat, not crisped. Primary pinnæ 1½–3 in. long, ovate-lanceolate, cuneate at the base; secondary broad, almost subpalmate below, irregularly pinnatifid. Ultimate segments linear, often elongated and decurved, about 1/10 in. broad, obtuse, flat, quite entire. Sori numerous, terminating the segments, sunk in the frond at the base. Indusium orbicular, cuneate at the base, 2-valved more than half-way down; valves convex, rounded at the tip, entire; clusters of sporangia often exserted.—Hook. and Grev. Ic. Fil. t. 60; A. Cunn. Precur. n. 233; Raoul, Choix, 38; Hook. Sp. Fil. i. 104; Hook. f. Fl. Nov. Zel.ii. 13; Handb. N.Z. Fl. 354; Hook. and Bak. Syn. Fil. 62; Thoms. N.Z. Ferns, 40; Field, N.Z. Ferns, 59, t. 16, f. 1. Trichomanes dilatatum, Forst. Prodr. n. 467.

North and South Islands, Stewart Island, Chatham Islands: Abundant in damp woods throughout. Auckland Islands: Sir J. D. Hooker (Handbook). Sea-level to 3000 ft.

Also in several of the Polynesian islands and in Java. One of the most handsome species of the genus.

8. H. demissum, Swartz, Syn. Fil. 147, 374.—Terrestrial or epiphytic, forming large patches. Rhizome long, wiry, creeping. Fronds erect or decurved, membranous, bright pale-green, 4–16 in. long including the stipes, 2–5 in. broad, ovate-deltoid or ovate-lanceolate, acuminate, 3–4-pinnatifid. Stipes 2–6 in. long, terete, smooth and glabrous, wiry, not winged above or very obscurely so; rhachis obviously winged in the upper part, but the wing much narrowed and sometimes obsolete below. Primary pinnæ spreading or ascending, rhombic-lanceolate or rhombic-triangular; secondary short, broad, again 1–2-pinnatifid. Ultimate segments 1/10–1/5 in. long, 1/20 in. broad, linear, obtuse, flat, quite entire. Sori small, very numerous at the tips of the segments, not confined to the lateral ones, not sunk in the frond. Indusium ovate, obtuse or subacute, 2-valved to the base; valves entire or lobed.—A. Rich. Fl. Nouv. Zel. 92; A. Cunn. Precur. n. 245; Raoul, Choix, 39; Hook. Sp. Fil. i. 109; Hook. f. Fl. Nov. Zel. ii. 14; Handb. N.Z. Fl. 354; Hook. and Bak. Syn. Fil. 61; Thoms. N.Z. Ferns, 41; Field, N.Z. Ferns, 58, t. 18, f. 1. H. erecto-alatum, Col. in Trans. N.Z. Inst. xi. (1879) 431. H. megalocarpum, Col. I.c. xv. (1883) 318. H. polychilum, Col. I.c. xxiv. (1892) 395. Trichomanes demissum, Forst. Prodr. n. 468.