Page:Manual of the New Zealand Flora.djvu/988

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1. C. dealbata, ''Swartz, Syn. Fil.'' 140, 356.—Trunk 10–30 ft. high, seldom more, 9–18 in. diam. at the base, clothed above the middle with the short light-brown bases of the old stipites. Fronds numerous, horizontally spreading, 6–12 ft. long, 2–4 ft. broad, 2–3-pinnate, subcoriaceous, green or yellow-green above, pure-white beneath from a coating of deciduous powder. Stipes rather slender, slightly asperous, clothed at the base with shining dark-brown linear scales, elsewhere (together with the rhachis and costæ) more or less covered with yellow-brown deciduous tomentum, becoming almost glabrous when old. Primary pinnæ 1–1½ ft. long, oblong, acuminate; secondary 2–4 in., linear-lanceolate, acuminate or almost caudate, deeply pinnatifid or pinnate towards the base. Segments or pinnules ¼–½ in. long, linear-oblong, acute or subacute, more or less falcate, serrate. Sori small, globose, copious, but often confined to the lower half of the segments. Indusium small, membranous, only covering the sorus in a very early stage, persistent at the base as a shallow cup.—''A. Rich. Fl. Nouv. Zel. 77, t. 10; A. Cunn. Precur. n. 226; Raoul, Choix, 38; Hook. Sp. Fil.i. 27; Hook. f. Fl. Nov. Zel.'' ii. 7; ''Handb. N.Z. Fl. 349; Hook. and Bak. Syn. Fil. 26; Thoms. N.Z. Ferns, 28; Field, N.Z. Ferns, 45, t. 10, f. 2. C. tricolor, Col. in Trans. N.Z. Inst.'' xv. (1883) 304. (?)Hemitelia falciloba, ''Col. in Trans. N.Z. Inst.'' xxiv. (1892) 394. Polypodium dealbatum, ''Forst. Prodr.'' n. 454.

2. C. medullaris, ''Swartz, Syn. Fil.'' 140, 366.—Trunk 20–50 ft. high or even more, in old plants furnished at the base with a hard and thick conical buttress formed of densely compacted aerial