Pinnularia segariana Foged
Type slideOutflow from Ngongotaha Trout Hatchery, North Island, New Zealand. Foged Collection, New Zealand No. 506/1966, Natural History Museum, Denmark.
Institution holding the type material
Known distributionIn addition to the type locality, reported in a Juncus swamp between Taihape and Waiouru, North Island, New Zealand.
EtymologyDedicated to the New Zealand biologist E. C. M. Segar.
The valves are linear-lanceolate with faintly protracted, broadly rounded apices, 15-20 µm long and 5-6 µm broad. The axial area is lanceolate, the central area forms a rather broad transverse fascia. The raphe is straight with central nodules faintly deflected in the same direction, and the terminal fissures also deflected in the same direction. Transapical striae, 14-15 in 10 µm, are radiate towards the middle of the valve, but convergent towards the apices.
Description reproduced with kind permission of Koeltz Scientific Books.
Images published online with kind permission of the Natural History Museum of Denmark.
Foged N 1979. Diatoms in New Zealand, the North Island. A. R. Gantner Verlag KG, Vaduz. 130 p.