Landcare Research - Manaaki Whenua

Landcare-Research -Manaaki Whenua

Eolimna krummensis  P.M.Novis, J.Braidwood, & C.Kilroy

Eolimna krummensis

Type slide

NEW ZEALAND: Canterbury: Smacks Creek (lat. 43°27.637, long. 172°35.406), periphyton, P.M. Novis and J.
Braidwood, 4 November 2009 (CHR618418!; cleaned frustules from cultured strain LCR-S:10:2:1).

Institution holding the type material

Publication

Known distribution

Styx River, Christchurch, New Zealand.

Etymology

Named for Krummsee in Germany, the site of isolation of strain AT-199Gel01 in Genbank.

Description

Frustules pennate, biraphid, elliptic-lanceolate in valve view, 2.6-3.5 µm wide, 7.6-9.4 µm long, with rounded ends. Living cells containing 2 narrow, parietal platelike chloroplasts, closely adhering to the inner valve margins.  Striae radiate and slightly curved towards the central area, 34-36(-39) in 10 µm, uniseriate, roundish areolae decreasing in size towards the valve margin.  Central area widened, bordered by (3-)4 shortened striae on each margin of the valve.  Raphe straight, widened at central termini, curved to the secondary valve side at valve apices. 

Notes

Funding from TFBIS (Terrestrial and Freshwater Biodiversity Information System), administered by the New Zealand Department of Conservation, is gratefully acknowledged.

Reference

Novis PM, Braidwood J, Kilroy C 2012. Small diatoms (Bacillariophyta) in cultures from the Styx River, New Zealand, including descriptions of three new species. Phytotaxa 64: 11–45.