Bilechnum. | : FILICES. 55 
to linear-oblong, subacute, usually connected by their broad dilated bases, 
margins minutely sinuate. Veins close, free, forked. Fertile fronds about 
as long as the sterile but narrower; pinnae 3-14 in. long, linear, stout, 
often flexuous, usually with broad leafy bases. Sori continuous, covering 
the whole under-surface except the costa. Indusium with the margins 
much lacerated.—Lomaria discolor Willd. Sp. Plant. v (1810) 293; A. Cunn. 
Precur. (1836) n. 181; Raoul Chorix (1846) 37; Hook. Sp. Fil. ui (1860) 5; 
Hook. f. Fl. Nov. Zel. ii (1855) 30; Handb. N.Z. Fl. (1864) 368; Hook. 
and Bak. Syn. fil. (1873) 175; Benth. Fl. Austral. vii (1878) 735; Thoms. 
N.Z. Ferns (1882) 65; Field N.Z. Ferns (1890) 100, t. 4, f. 2, 24; Cheesem. 
Man. N.Z. Fl. (1906) 976. Stegania discolor A. Rich. Fl. Nouv. Zel. (1832) 
87. Onoclea discolor Swartz Syn. Fil. (1806) 3. Osmunda discolor Forst. f. 
Prodr. (1786) n? 413. 
NortH AND SoutH Is~anps, CHATHAM ISLANDS, STEWART ISLAND, AUCKLAND 
AND CAMPBELL I[sLanDS: Abundant in open forests throughout. Sea-level to 
3000 ft. 
Kasily distinguished by the tall erect habit, long and narrow horizontally spreading 
pinnae, and dirty-white or reddish under-suriace. ‘The fronds are frequently forked at 
the top, and a beautiful sport is in cultivation in which the pinnae are greatly expanded 
in the upper two-thirds of their length, and deeply pinnatifid. Also a native of Norfolk 
Island, Australia, and Tasmania. 
reer, 
3. B. vuleanicum Kuhn Ann. Lugd. Bat. iv (1869) 284.—Rhizome 
short, stout, woody, erect or inclined, densely clothed with the remains 
of the old stipites. Stipes 4-9 in. long, slender, pale yellow-brown, clothed 
towards the base with dark-brown shining subulate scales, smooth and 
polished above. Sterile fronds 4-14in. long without the stipes, 2-5 in. 
broad at the base, lanceolate-deltoid, not narrowed below, acuminate, 
coriaceous, dull-green, glabrous or the suriaces and margins sprinkled with 
sott ey hairs, pinnate at the base, pinnatifid above. Pinnae 1-3 in. 
long, 4-4 in. broad, spreading, lanceolate or ensitorm, broadest at the base, 
acute or "obtuse at the tip, falcate, lowest pair deflexed ; margins thickened, 
entire or minutely crenate-undulate. Veins free, forked. Fertile fronds 
usually exceeding the sterile and with a longer stipes, pinnate in the 
lower half; pinnae 1-2in. long, linear, distant, with a dilated adnate 
base. Sori continuous; indusium with lacerate margins.—Lomaria vul- 
canica Blume Hnum. (1828) 202; Hook. Ic. Plant. t. 969 ; Sp. Fal. iii 
(1860) 12; Hook. f. Fl. Nov. Zel. 11 (1855) 29; Handb. N.Z. Fl. (1864) 367 ; 
Hook. and Bak. Syn. Ful. (1873) 176; Benth. Fl. Austral. vii (1878) 735 ; 
Thoms. N.Z. Ferns (1882) 65; Field N.Z. Ferns (1890) 99, t. 27, £. 5, 54; 
Cheesem. Man. N.Z. Fl. (1906) 977. L. deltoides Col. in Tasm. Journ. 
Nat. Sev. 1 (1846) 177. L. deflexa Col. l.c. 178. L. paucijuga Col. in Trans. 
N.Z. Inst. xx (1888) 222. 
NortH anp SoutH Istanps, Stewart Istanwp: In dry open woods from Auck- 
land and Coromandel southwards, but often rare and local, especially to the north 
of the East Cape, more frequent in the pablo forests GE Nelson Bae Canterbury. 
Sea-level to 3500 ft. 
A well-marked species, at once recognized by the narrow-deltoid frond, with the 
lowest pair of pinnae deflexed. It extends northwards through Australia and the 
Pacific islands to Malaya. 
4. B. Norfolkianum.C. Christen. Ind. Fil. (1905) 157.—Rhizome short, 
stout, erect or inclined, clothed with the bases of the old stipites mixed 
with dark-brown chafiy scales. Stipes short, stout, 2-4 in. long, scaly at the 
he 
