Hymenophyllum. | FILICES. 931 
broadly rhomboid, divided half-way down, cuneate at the base; 
valves broad, rounded.—Hook. Sp. Fil. i. 101; Hook. f. Fl. Antarct. 
1,105; Fil. Nov. Zel. ii. 12; Handb. N.Z. Fl. 353; Hook. and Bak. 
Syn. Fil. 58 ; Benth. Fl. Austral. vii. 705; Thoms. N.Z. Ferns, 38. 
H. semibivalve, Hook. and Grev. Ic. Fil. t. 88; A. Rich. Fl. Nouv. 
Zel. 94; A. Cunn. Precur.n.241; Raoul, Choiz,39. H. imbricatum, 
Col. in Tasm. Journ. Nat. Scv. (1845) 27. 
NortH AnD SourH Is~LANDS, Stewart IsuaAnD, CHaTHAM IsLANDS, AUCK- 
LAND IsuANDS: From Mongonui and Kaitaia southwards, not uncommon. 
Sea-level to 3000 ft. 
A widely distributed plant, found in Australia and Tasmania, Polynesia, 
Japan, South Africa and Mauritius, and extratropical South America. It is 
easily recognised by the extremely slender capillary stipes, pendulous pale 
glaucous-green fronds, broad flat entire segments, and large orbicular sori. 
When growing in exposed places it is often much dwarfed, with closely imbri- 
cating pinne, constituting Colenso’s H. imbricatum. 
2. H. polyanthos, Swartz, Syn. Fil. 149 ; var. sanguinolentum 
Hook. Sp. Fil. i. 107.—Forming matted patches on the trunks or 
branches of trees or of rotten logs. Rhizome rather stout, creep- 
ing, much branched, usually bristly with reddish-brown hairs. 
Fronds erect or decurved, somewhat opaque, dull olive-green, 
reddish-brown when dry, 2-9 in. high, broadly ovate or oblong, 
3-pinnatifid, glabrous or the stipes and rhachis with scattered 
red-brown hairs when young. Stipes rather stout, narrowly winged 
above; rhachis broadly winged throughout, stout, flexuose. Primary 
pinne close or rather distant, spreading, rarely decurved ; second- 
ary short, deeply pinnatifid. Segments narrow-linear, obtuse, flat 
or the margins undulate. Sori mainly in the upper part of the 
frond, usually terminating short somewhat contracted lateral 
segments, quite free or very slightly sunk at the base. Indusium 
broader than the segment, broadly ovate or suborbicular, 2-valved 
to the base; valves obtuse, entire or slightly sinuate, often crested 
on the back.—Hook. f. Fl. Nov. Zel. ii. 14; Handb. N.Z. Fl. 354; 
Hook. and Bak. Syn. Fil. 60; Thoms. N.Z. Ferns, 38; Field, N.Z. 
Ferns, 58, t. 28, f. 7. H. sanguinolentum, Swartz, Syn. Fil. 148, 
316; A. Rich. Fl. Now. Zel. 93; A. Cunn. Precur. n. 234; Raoul, 
Choiz, 38. H. lophocarpum, Col. i Trans. N.Z. Inst. xvii. (1885) 
255. Trichomanes sanguinolentum, Horst. Prodr. un. 465. 
North AND SovutH Isnanps, StEwarT Is~taAND, AUCKLAND IsLANDs: 
Abundant in forests throughout. Sea-level to 3000 ft. 
One of the most abundant species of the genus in New Zealand. It stains 
paper brown when drying, and gives off a peculiar odour, which it often retains 
- for years. The species, in some of its forms, is found in almost all tropical 
countries, but apparently not in Australia. 
3. H. villosum, Col. in Tasm. Journ. Nat. Sc. (1845) 25.— 
Forming dense matted patches on the trunks of trees or amongst 
moss. Rhizome much branched, wiry, creeping. Fronds erect or 
