Diatom, Stephanodiscus
This diatom is from a water sample collected from the
Metolius River in Oregon.
Transmitted Oblique Illumination
Definition/Function:
Significance in the Environment:
Characteristic Features:
Stephanodiscus has a circular valve view with uniserial punctae near the center and
radial multiserial punctae out from the
central area. There is a circle of spines protruding near the perifory from the smooth
areas between the rows of punctae.
Associated Particles:
References:
Prescott, G. W., HOW TO KNOW THE FRESHWATER ALGAE, Wm. C. Brown Company,
1970
Vinyard, William C., DIATOMS OF NORTH AMERICA, Mad River Press, Inc., 1979, (ISBN
0-916-422-15-1)
Round, F.E., R. M. Crawford, D.G. Mann, THE DIATOMS:BIOLOGY & MORPHOLOGY OF THE GENERA,
Cambridge University Press, pp.
148-9, 1990. (ISBN 978-0-521-71469-3)
Stoermer, Eugene F. and John P. Smol (eds), THE DIATOMS:APPLICATIONS FOR THE
ENVIRONMENTAL AND EARTH SCIENCES, Cambridge
University Press, 2001 (ISBN 0521004128)