A type study and emended description of Haslea wawrikae (Bacillariophyta)

Authors

Frithjof A.S. Sterrenburg
Friedel Hinz, Alfred-Wegener-Institut Helmholtz-Zentrum für Polar- und Meeresforschung
Paul E. Hargraves, Harbor Branch Oceanographic Institute at Florida Atlantic University

Document Type

Article

Date of Original Version

9-11-2015

Abstract

Type slides and the last remnant of the type sample of Haslea wawrikae were examined in LM and SEM. An emended diagnosis is presented, one new finding being that the transverse bars of the basal layer on either side of the raphe are offset—the bars on the one side aligning with the areolar foramina on the other. The species is confirmed (SEM) to have a fully developed raphe and the valve structure characterising Haslea species: an internal “grate-like” basal layer and an external tegumental layer with continuous longitudinal fissures. An erroneous identification of H. wawrikae was traced in the literature and the existence of similar, but non-conspecific, species is suspected.

Publication Title, e.g., Journal

Phytotaxa

Volume

226

Issue

2

Citation/Publisher Attribution

Sterrenburg, Frithjof A., Friedel Hinz, and Paul E. Hargraves. "A type study and emended description of Haslea wawrikae (Bacillariophyta)." Phytotaxa 226, 2 (2015). doi: 10.11646/phytotaxa.226.2.8.