Flora of New Zealand Series

Trichomanes bivalve Forst. f. Prodr. 1786, 84.

Sphaerocionium bivalve Presl Hymen. 1843, 34.

H. spathulatum Col. in Tasm. J. nat. Sci. 2, 1846, 184.

H. pyriforme Van den Bosch Ned. kruidk. Arch. 5, 1863, 173.

Meringium bivalve (Forst. f.) Cop. in Philipp. J. Sci. 67, 1938, 44.

Rhizome rather stout, with or without hairs; stipites rather distant. Stipes rather stout, 5-15 cm. long, not winged. Rhachis narrowly winged above, rarely throughout. Lamina 10-20 cm. long, broad-ovate to deltoid-triangular, us. acuminate, bright green, 2-4-pinnatifid; final segs linear, obtuse, distinctly to rather obscurely toothed. Sori not confined to lateral segs, slightly immersed; indusium 1-2 mm. long, ovate to suborbicular, 2-valved nearly to base, valves entire. Receptacle distinctly exserted to included.

DIST.: N., S., St., Ch. Lowland to montane forest from lat. 36º southwards. Often confused with H. multifidum. Recorded from A., but not gathered by recent expeditions. Endemic?