Morphological investigations of achnanthes javanica grunow and a. subconstricta (meister) comb. Nov.

Kensuke Toyoda, Tamotsu Nagumo, Keigo Osada, Jiro Tanaka

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

The morphology and fine structure of two marine mooraphid diatoms, Achnanthes javanica Grunow and A. subconstricta (Meister) comb. Nov. (= A javanica var. subconstricta Meister) have been investigated. Observations on the valves of type material (Grunow in Cleve & Möller 1878) of A. javanica show them to be lanceolate to linear in shape with a marginal ridge on the araphid valve but lacking terminal orbiculi. Conversely, A. subconsticta has a marginal ridge and special marginal spines as well as terminal orbiculi. From SEM observations in girdle view, A. subconstricta. These features support the view that A. subconstricta should be considered an independent species.

Original languageEnglish
Pages (from-to)365-375
Number of pages11
JournalDiatom Research
Volume18
Issue number2
DOIs
Publication statusPublished - 2003 Nov

ASJC Scopus subject areas

  • Aquatic Science

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