Subordinate Taxa
Scientific Name:
Zosteraceae Dumort.

Infl. a spadix or spike enclosed, at least at first, in a spathe-like If-sheath. Fls ∞, in 2 vertical rows on one surface of the flattened axis. Per. 0 or perhaps sts represented by a bract-like lobe (retinaculum). Stamen solitary; anthers sessile, dehiscence longitudinal; pollen thread-like. Carpel solitary, narrowing above to short style; stigmas 2, flagelliform; ovule solitary, pend. Achene ± beaked, indehiscent or bursting irregularly. Rhizomatous, glab., marine perennials with flattened stems and 2-ranked, linear, sheathing lvs. Two genera,  monoec., widespread,  dioec., from north Pacific coasts only.

[From:  Moore and Edgar (1970) Flora of New Zealand. Volume 2.]

Number of species in New Zealand within Zosteraceae Dumort.
Indigenous (Non-endemic)1
Cronquist, A. 1988: The evolution and classification of flowering plants. The New York Botanic Gardens, New York.
Mabberley, D.J. 2008: Mabberley's plant book, a portable dictionary of plants, their classification and uses. Edition 3. Cambridge University Press.