16 FILICES. [ Trichomanes, 
* Fronds simple and entire. 
Fronds 2-4 in. diam., broadly reniform with a deep sinus .. 1. T. reniforme. 
** Fronds small, 3-4 in. long, usually pendulous, delicately membranous, pinnately 
or 2-pinnately divided ; divisions comparatively few. 
Fronds 3-1} in., digitately or flabellately divided, margins ciliated 
with branched rufous hairs. Indusium obconical, immersed 2. T. Lyallii. 
Fronds 1-3 in., dull dari-green, irregularly 2-pinnatifid, segments 
with a single unbranched costa... i oe .. 3d TL. humile. 
Fronds 1-4 in., pale-green, irregularly 2-pinnatifid, costa of the 
segments giving off numerous dichotomous veinlets .. -. 4. T. venosum. 
Fronds 1-4 in., dark-green, 2-3-pinnately divided; rhachis not 
winged. Segments very narrow - linear, acute; costa not 
branched at 2 a ~ Pe .. oO T. Colensot. 
*** Fronds larger, 4-9 in. long, rigidly erect, subcoriaceous, 3-4-pinnatifid ;  divi- 
sions numerous. 
Fronds lanceolate, pale yellow-green ; ultimate segments narrow- 
linear, obtuse .. he th a3 ort .. 6. JZ’. strictum. 
Fronds ovate-deltoid, dark-green; ultimate seginents broad, 
oblong, incised at the tips he rites “* .. U7. T. elongatum. 
; at | ' \- : 4 j i 
1. T. reniforme Forst. f. Prodr. (1786) n. 462.—Creeping over the 
ground in moist forests, or clothing the trunks of trees and rotten logs. 
Rhizome stout, hard, rigid, wide-creeping ; rootlets woolly. Stipes 2-8 in. 
long, erect, wiry, glabrous. Fronds 2-4 in. broad, quite entire, broadly 
reniform with a deep sinus, dark-green and translucent when fresh, brown 
and almost horny when dry, flat or undulate, glossy, quite glabrous ; veins 
radiating from the base, numerous, close, prominent, repeatedly dichotomous, 
spurious venules wanting. Sori very numerous, crowded, often encircling 
the whole of the margin of the frond. Indusium narrow cup-shaped or 
almost bell-shaped. Receptacle far-exserted, stout, columnar, covered with 
sporangia.—A, Rich. Fl. Nouv. Zel. (1832) 95; A. Cunn. Precur. (1836) 
n. 228; Raoul Choiz (1846) 48; Hook. Sp. Fil. i (1846) 115; Fxotie Ferns 
(1827) t. 2; Hook. and Gren, Ic. Fil. (1829) t. 31; Hook. j. Fl. Nov. Zel. ii 
(1855) 16; Handb. N.Z. Fl. (1864) 356; Hook. and Bak. Syn. Fil. (1873) 
173; Thoms. N.Z. Ferns (1882) 46; Field N.Z. Ferns (1890) 68; 4. 2, £. 3% 
Cheesem. Man, N.Z, Fl. (1906) 943. Cardiomanes reniforme Pres] Hym. 
(1843) 12. 
NortH anv Sourn Istanps, Stewart IsLaAND, CHATHAM IsLaNDS: From the 
North Cape southwards, abundant in damp woods, except on the eastern side of 
Canterbury, Otago, and Stewart Island, where it is rare and local. Sea-level to 3000 ft. 
Kidney-fern ; Raurenga. | 
A very distinct and beautiful species, quite unlike any other. The frond differs 
from that of all the other species in having from 4 to 6 layers of cellules. It is confined 
to New Zealand, its reported occurrence in Australia (Handb. N.Z. Fl. 747) not having 
been confirmed. | | - 
Chef s 
(2, A. Lyallii Hook and Bak. Syn. Fil. (1873) 77.—Small, pendulous, 
very delicate, clothing the trunks of trees in damp forests. Rhizome 
branched, creeping, capillary, sparingly clothed with simple or stellate 
red-brown hairs. Stipes 1-2 in. long, very slender, filiform. Fronds 3-12 in. 
long and broad, deltoid or suborbicular in outline, delicately membranous 
and diaphanous, digitately or flabellately divided almost to the base. 
Segments simple or dichotomously branched, linear, obtuse, flat, minutely 
denticulate ; margins ciliated with branched rufous hairs. Sori few or 
many to a frond, deeply sunk in the tips of the segments. Indusium 
obconical, the width of the mouth about equalling the depth of the tube ; 
~~ KLA La . » * ~ 4 
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