Page:Manual of the New Zealand Flora.djvu/973

Hymenophyllum.] 5. H. atrovirens, ''Col. in Tasm. Journ. Nat. Sc.'' (1845) 26.—Usually terrestrial. Rhizome slender, wiry, creeping. Fronds few, somewhat rigidly erect, membranous, dull dark-green, 2–6 in. high, ½–1 in. broad, linear-oblong or lanceolate, quite glabrous, 2-pinnatifid. Stipes about half the length of the frond, winged almost to the base; rhachis fiexuose, winged throughout, wings flat, not crisped. Pinnæ 5–10 on each side, alternate, the lowest usually the largest, ⅓–⅔ in. long, erecto-patent, irregularly pinnatifid. Segments simple or forked, linear, obtuse, flat, quite entire. Sori few, terminating the segments, quite free. Tndusium small, ovate, 2-valved almost to the base, slightly broader than the segments; valves obtuse or subacute, entire or jagged.— H. javanicum var. atrovirens, ''Hook. and Bak. Syn. Fil.'' 60. H. montanum, ''Kirk in Trans. N.Z. Inst. x. (1878) 394; Thoms. N.Z. Ferns, 40; Field, N.Z. Ferns,'' 61, t. 28, f. 1.

6. H. pulcherrimum, ''Col. in Tasmanian Journ. Nat. Sci.'' (1845) 25.—Forming dense tufts on the branches and trunks of trees. Rhizome short, stout, densely clothed with shining red-brown bristly scales; rootlets woolly. Fronds very handsome, pale-green, erect or pendulous, 9–30 in. long including the stipes, 2–6 in. broad, ovate-lanceolate or linear-oblong, acuminate, membranous, flaccid, quite glabrous, 3–4-pinnatifid. Stipes 2–6 in. long, winged to the base; rhachis also with a narrow wing throughout its length, wings not crisped. Primary pinnæ 1½–3 in. long, rhomboidal-lanceolate, 2-pinnatifid down to a narrowly winged flexuous rhachis. Ultimate segments simple or forked, linear, flat, obtuse or retuse, quite entire. Sori terminating short lateral segments, sometimes apparently axillary, quite free. Indusium orbicular, 2-valved to the base; valves convex, quite entire.—''Hook. Sp. Fit. i. 103, t. 37a; Hook. f. Fl. Nov. Zel.'' ii. 13, t. 74; ''Handb. N.Z. Fl. 354; Hook. and Bak. Syn. Fit. 62; Thoms. N.Z. Ferns, 41; Field, N.Z. Ferns,'' 60, t. 20, f. 6.