944 FILICES. [| Trichomanes. 
_ 38. T. humile, Forst. Prodr. n. 464.—Small, pendulous from the 
faces of rocks or bank-sides. Rhizomes much branched, slender, 
creeping, intermatted. Stipes short, slender, +4in. long, winged 
almost to the base. Fronds 1-3 in. long, }+-2 in. broad, lanceolate or 
linear-oblong, quite glabrous, membranous, dark dull-green, irre- 
cularly 2-pinnatifid; rhachis winged throughout. Pinne ascend- 
ing, forked or again pinnatifid. Ultimate segments linear, flat, 
obtuse, quite entire, a single costa in each segment, spurious venules 
wanting. Sori solitary, sunk in the tip of a short lateral segment 
and on the upper side of a pinna near its base. Indusium tubular 
or trumpet-shaped ; mouth expanded, shortly 2-lipped. Receptacle 
usually exserted as a long capillary bristle-— Hook. and Grev. Ic. Ful. 
t. 85; Hook. Sp. Fil. i. 123; Hook. f. Fl. Nov. Zel. u. 16; Handb. 
N.Z. Fl. 356; Hook. and Bak. Syn. Fil. 80; Thoms. N.Z. Ferns, 46; 
Field, N.Z. Ferns, 70, t. 5, n. 8. 
Norru Istanp: From the North Cape southwards, not uncommon in dark 
woods. SourH Istanp: Nelson — Happy Valley, 4. Grant. Marlborough— 
Queen Charlotte Sound, Banks and Solander. Canterbury—Banks Peninsula, 
Armstrong. Sea-level to 2000 ft. 
Also in Java and the Pacific islands. 
4. T. venosum, &. Br. Prodr. 159.—Pendulous, usually cloth- 
ing the trunks of tree-ferns. Rhizome long, slender, branched, 
wide - creeping, densely tomentose. Stipes 4-2in. long, very 
slender, capillary, naked. Fronds 1-4in. long, 3-14in. broad, 
linear or lanceolate to oblong, very delicate and niembranous, 
translucent, pale-green, shining, quite glabrous, pinnate; rhachis 
broadly winged above, naked below. Pinne 4-8 pairs, very 
variable in shape and amount of cutting, from limear and undi- 
vided to rhomboidal-lanceolate and deeply and irregularly pinnati- 
fid. Segments or lobes flat, obtuse, irregularly sinuate; costa 
flexuous, with numerous alternate once or twice dichotomous 
secondary veinlets. Sori generally solitary on each pinna and 
sunk in a short lobe on the upper margin near the base, but in 
specimens with broad lower pinne there may be 2-4 sori placed 
irregularly on both the upper and lower margins. Indusium 
tubular; mouth dilated all round, entire or very slightly 2-lipped. 
Receptacle usually exserted, capillary.—A. Cunn. Precur. n. 229; 
Raoul, Choix, 38; Hook. Sp. Fil. i. 182; Hook. and Grev. Ic. Fil. 
t. 78; Hook. f. Fl. Nov. Zel. ii. 17; Handb. N.Z. Fl. 357; Hook. 
and Bak. Syn. Fil. 82; Benth. Fl. Austral. vii. 702; Thoms. N.Z. 
Ferns, 47; Field, N.Z. Ferns, 71, t. 14, f. 4. T. venustulum, Col. in 
Trans. N.Z. Inst. xu. (1880) 366. 
KgerMapec Istanps, NortH anp SourH IsLAnps, STEWART ISLAND, 
CuatHam Is~anps: Abundant in moist forests throughout. Sea-level to 
2500 ft. 
Also in south-eastern Australia and Tasmania. Mr. Colenso’s 7. venustulum 
is simply a small state with broader lower pinnze sometimes bearing 2-4 sori. 
