18 G 
Classification and Description 
retuse. Involucre, small, globose, sub-pedicelled, solitary, 
sub-terminal in sinuses of tertiary pinnules and segments, 
numerous, scattered : Valves, large, and entire. Rachis , 
winged, 8—11 inches ; margin entire. Stipe, semi-terete, 
flattisli, somewhat fleshy, brittle, winged to caudex, glabrous, 
densely fimbriated at base ; margin entire. Caudex, 
creeping. 
Hub. On reclining and prostrate trees, humid woods, 
shores of Waikare Lake; December, 1841. 
Ohs . This fine and very beautiful species becomes circin- 
nate as it gets old. In affinity it. somewhat approaches IL 
fiexuosum , R. Cunn .; from which, however, it may at first 
sight be discriminated, by its being tripinnate, and by its 
winged stipe and rachis being destitute of undulations, &c. 
30. H. revolutum, n. sp. Plant, small, climbing, few 
fronded, sub-erect and spreading, glabrous, epiphytical. 
Frond, ovate or oblong-lanceolate, obtuse, pinnate-pinnatifid 
or sub-bipin nate, 2—5 inches ; dusky green. Pinnules ; 
somewhat trapezio-falcate, petiolate, alternate, distant, pin- 
natifid, 3—12 lobed : lobes, linear-oblong, truncate, deeply 
serrate or sub-laciniated ; serratures acute and somewhat 
hooked ; mostly four laciniations at apex, decurrent, revolute; 
lowermost wedge-shaped and deeply bifid. Involucre, ob- 
ovate or sub-rotund, inflated, laciniated, supra-axillary, soli¬ 
tary, pedicelled ; pedicel, margined : Valves, large, open : 
Receptacle, exserted. Rachis, flexuose, margined towards 
apex ; margin, serrate ; serratures, distant. Stipe, filiform, 
cylindrical, brittle, finely striated, tortuous, 1—lg- inches 
long. Caudex, creeping. 
Hab. On sides of prostrate and reclining trees, shores of 
Waikare Lake ; December, 1841. 
Obs. A species possessing very close affinity with II. 
Tunbridgense , Sm. 
31. II. atrovirens, n. sp. Plant, small, few fronded, 
erect, glabrous, terrestrial. Frond, oblong-ovate, sub-acu- 
