Marginariella

Marginariella
Marginariella urvilliana
Scientific classification
Domain: Eukaryota
Clade: Sar
Clade: Stramenopiles
Division: Ochrophyta
Class: Phaeophyceae
Order: Fucales
Family: Seirococcaceae
Genus: Marginariella
Tandy
Type species
Marginariella urvilleana
(A. Richard) Tandy

Marginariella is a genus of brown algae in the order Fucales.[1] All three members of the genus are endemic to the New Zealand region.[2][3]

Description

Marginariella species consist of a holdfast bearing multiple blades. The margins of the blades bear receptacles and, in the case of M. boryana and M. urvilliana, pneumatocysts. The presence and form of the pneumatocysts can be used as a character to differentiate among the species.[4]

Etymology

The genus was initially named Marginaria as it bears floats and receptacles on its frond margins. This name was later found to be preoccupied by a genus of ferns, thus the algae were renamed Marginariella.[2]

Taxonomy

Marginariella contains the following species:

  • Marginariella parsonsii[1]
  • Marginariella urvilliana[1]
  • Marginariella boryana[1]

References

  1. ^ a b c d "Genus Marginariella". iNaturalist NZ. Retrieved 1 October 2025.
  2. ^ a b Parsons, Murray J (1978). "Marginariella, a genus of brown seaweeds" (PDF). Canterbury Botanical Society Journal. 12: 1-2.
  3. ^ Nelson, W. A. (1999-12-01). "Marginariella parsonsii (Seirococcaceae, Phaeophyta), a new species from the Bounty and Antipodes Islands, southern New Zealand". New Zealand Journal of Botany. 37 (4): 731–735. doi:10.1080/0028825X.1999.9512666. ISSN 0028-825X.
  4. ^ Wilson, Hugh D. (1994). Stewart Island plants (Reissued as a facsimile with amendments and corrections. Originally published in 1982. ed.). Christchurch, N.Z: Manuka Press. p. 307. ISBN 0958329907.