Landcare Research - Manaaki Whenua

Landcare-Research -Manaaki Whenua

Pinnularia woodiana Foged

Pinnularia woodiana; image by Cathy Kilroy (NIWA)

Type slide

Coast south of Waiwera, North Island, New Zealand. Foged Collection, New Zealand No. 584/1966, Natural History Museum, Denmark.

Institution holding the type material


Known distribution

North Island, New Zealand.


Dedicated to the biologist E. J. F. Wood.


The valves are rhombic-elliptical with broadly rounded apices, 29-33 µm long and 14-15 µm broad. The axial area is narrow. The central area forms a transverse fascia dilating towards the margins of the valve. The raphe is straight with rather dense central pores. The terminal fissures are deflected in the same direction. The transapical striae, 9-10 in 10 µm, are extremely radiate towards the middle of the valve, more or less sigmoid, and towards the apices parallel or faintly convergent.

Description reproduced with kind permission of Koeltz Scientific Books.


Images published online with kind permission of the Natural History Museum of Denmark.

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


Foged N 1979. Diatoms in New Zealand, the North Island. A. R. Gantner Verlag KG, Vaduz. 130 p.