Marginariella parsonsii W.A.Nelson 1999
Publication Details
Marginariella parsonsii W.A.Nelson 1999: 732, figs 2, 3
Published in: Nelson, W.A. (1999). Marginiella parsonsii (Seiorococcaceae, Phaeophyta), a new species from the Bounty and Antipodes Islands, southern New Zealand. New Zealand Journal of Botany 37: 731-735.
Request PDFType Species
The type species (lectotype) of the genus Marginariella is Marginariella urvilliana (A.Richard) Tandy.
Status of Name
This name is of an entity that is currently accepted taxonomically.
Type Information
Type locality: Depot Island, Bounty Island, New Zealand; (Nelson 1999: 733) Holotype: C.H. Hay; 10 Mar 1985; WELT; A16417a (Nelson 1999: 733)
Eponomy
Named for Murray J. Parsons, New Zealand phycologist.
General Environment
This is a marine species.
Description
The thalli range in height to 700 mm
and are attached to rock substrata by a conical
holdfast which consists of layers of tubular haptera.
The stipe is stout, slightly flattened, and twisted at
the base . The stipe extends from approx. 40-150 mm
in height. The fronds are narrow (1-7(-9) mm) and strap-like (250-550 mm long). The inner margin of the blades is smooth, and the outer margin is toothed
in the lower region although it is mainly entire .
Juvenile thalli (Fig . 3) produce leafy laterals which
are short and broad . There are no vesicles in this
species . The receptacles are stipitate, terete, and may grow
to 15 mm in length. They are found clustered at the
base of fronds, as a fringe along the inner margin .
Both male and female structures have been observed
in sections of conceptacles and some conceptacles
appear to be unisexual . It is not clear whether they
are always hermaphrodite or whether there ar e
differences in the timing of maturation of oogonia
and antheridia so that they are functionally unisexual.
Created: 26 August 2008 by M.D. Guiry.
Last updated: 25 April 2011
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Linking to this page: https://www.algaebase.org/search/species/detail/?species_id=133703
Citing AlgaeBase
Cite this record as:
M.D. Guiry in Guiry, M.D. & Guiry, G.M. 25 April 2011. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. https://www.algaebase.org; searched on 08 September 2024
