Page:Manual of the New Zealand Flora.djvu/1035

Asplenium.] erect, pale-green, quite glabrous, pinnate or bipinnate. Pinnæ remote or rather close, 2–10 in. long, ¼–¾ in. broad, in the pendulous varieties narrow-linear to lanceolate, but in the small erect forms often much broader, acuminate or caudate, usually cut down to a narrowly winged rhachis into erecio-patent straight or incurved linear-oblong obtuse or acute lobes ¼–⅔ in. long; or more rarely the pinnæ are again pinnate at the base, with the secondary divisions lobed or pinnatifid. Veins indistinct, a single one to each lobe. Sori oblong, usually on the margins of the lobes, rarely on the disc of the pinnæ.—''Hook. Sp. Fil.'' iii. 205; ''Hook. f. Fl. Nov. Zel.'' ii. 35; ''Handb. N.Z. Fl. 374; Hook. and Bak. Syn. Fil. 222; Benth. Fl. Austral.'' vii. 749; ''Thoms. N.Z. Ferns, 76; Field, N.Z. Ferns, 123, t. 12, f. 2. A. heterophyllum, A. Rich. Fl. Nouv. Zel.'' 74. Cœnopteris flaccida, ''Thunb. Nov. Act. Petrop.'' ix. 158; ''A. Cunn. Precur. n. 194; Raoul, Choix,'' 38. C. novæ-zealandiæ. ''Spreng. Crypt. 115; Raoul, Choix,'' 38. Darea flaccida, ''Willd. Sp. Plant.'' v. 296.

11. A. umbrosum, ''J. Sm. in Hook. Lond. Journ. Bot.'' iv. (1845) 174.—Rhizome short, stout. Stipes 1–2 ft. long, stout, erect, scaly towards the base, smooth and naked above, brownish-green. Fronds variable in size, 1–4 ft. long without the stipes, 9 in. to 3 ft. broad, broadly ovate or deltoid, spreading, often drooping towards the tip, pale-green, membranous, flaccid, 2–3-pinnate; rhachis slender, flexuous, naked. Primary pinnæ rather distant, 6–18 in. long, ovate-lanceolate to oblong-ovate, acute or acuminate; secondary 1–2 in. long, lanceolate, deeply pinnatifid or again pinnate. Ultimate segments ¼–½ in. long, oblong or oblong-lanceolate, acute, sessile and decurrent, usually deeply incisocrenate; veins pinnate, simple or forked. Sori copious, usually about 5–6 to each pinnule, short, oblong. Indusium large, tumid, membranous.—''Hook. and Bak. Syn. Fil. 229; Benth. Fl. Austral.'' vii. 749; ''Thoms. N.Z. Ferns, 77; Field, N.Z. Ferns, 125, t. 5, f. 2. A. australe, Brack. Fil. U.S. Expl.''