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Halopteris Kuetz.
Halopteris congesta (Rke.), Sauv. (1900–14), p. 411 (=Anisocladus congestus Rke.); V. W. L. (1947), XI, No. 255, in preparation.
Closely resembles H. funicularis, but often more compact and less straggly. Fruiting bodies axillary, without paraphyses, on very short and close-set ramuli on the rachides. On rocks and stones in shallows to deep water. Common locally.
Loc. distr.: From Taranaki southwards to Stewart Is.
Geogr. distr.: S. Africa, N.Z.
Type loc.: N.Z.
Halopteris funicularis (Mont.) Sauv. (1900–14), p. 393; V. W. L. (1947), XII, No. 280, in preparation.
Often more straggly than the above. Fruiting bodies accompanied by paraphyses in the axils of the normal branchlets. On stones and rock in shallows to deep water, often associated with H. congesta, H. hordacea, and Ptilopogon. Common locally.
Loc. distr.: From Taranaki southwards, Stewart Is., Chathams, Auckland Is., Campbell Is.
Geogr. distr.: Circumpolar-subantarctic (in a belt from S. America to Falklands, S. Georgia, Staten Is., Aucklands), Tristan da Cunha, S. Africa, Australia, N.Z.
Halopteris hordacea (Harv.) Sauv. (1900–14), p. 426; V. W. L. (1940), III, No. 56 (=Stypocaulon paniculatum Kuetz.).
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The commonest species of the genus in N.Z. Very shaggy; main rachides often taper to a point upwards, the individual tufts clothing them, distinct and step-like; fruiting bodies crowded in the axils, without paraphyses, in spikes, subterminal on the branches.
Loc. distr.: From the Far North to Stewart Is., Chathams and the Subantarctic Islands.
Geogr. distr.: Cape of Good Hope?, Australia, N.Z.
Halopteris novae-zelandiae Sauv. (1900–14), p. 336; V. W. L. (1946), X, No. 231.
Much finer and more delicate than any of the preceding species; pinnate but not noticeably distichous; fruiting bodies solitary, secund, on very fine terminal branchlets. Sublittoral, frequently brought up on fishing lines in Stewart Is. from 10–20 fathoms. From January to June.
Loc. distr.: Pihama in April, in drift (V. W. L.); Wellington (Laing); Stewart Is. (Mrs. Willa). Endemic.
Type loc.: Lyall Bay, Wellington (Laing).
*Halopteris sp. closely resembling H. brachycarpa Sauv. (1900–14), p. 404; V. W. L. (1946), VII, No. 158, as H. brachycarpa.
Plant somewhat fine, pinnate; fruiting bodies clustered, borne on long, branched pedicels, in the axils of the uppermost branchlets. Sublittoral. Found only in the drift.
Loc. distr.: Taranaki (V. W. L.); Wellington (Miss L. B. Moore); Kaikoura (Dr. Allan); Stewart Is. (Mrs. Willa); Kena Beach, Nelson.
*Halopteris sp. closely resembling H. platycena Sauv. (1900–14), p. 343; V. W. L. (1946), VIII, No. 181, as H. platycena.
Fronds stiff, distichous, feather-like; fruiting bodies solitary in axils of specialized, incurved, fertile branchlets in the axils of the normal branches. In pools and in shallows extending to deep water, either on stones on the bottom or fringing vertical faces of submerged rocks; fertile during the winter months; often disappearing from the beach for considerable periods.
Loc. distr.: Pihama, and here and there along the Taranaki coast (V. W. L.).