"bacteria"

The presence of A. viscolactis in milk is a common cause for sliminess or "ropiness".

A collection of some of the strains of Escherichia coli needed to grow various coliphages (available separately).

Nitrogen fixation, produces nodules on legume roots. Bacteroids from nodules can be X, Y, and club shapes.

This filamentous cyanobacteria is comprised of heterocysts and akinetes that are terminally located on the filament.

Found on dental plaque, implicated in cavities. No Lancefield group shown, gamma hemolysis. 

Frequent human isolate. Causes gastroenteritis.

This pathogenic organism is sometimes isolated from hay and grass.

All microbial cultures undergo an extensive quality control program prior to releasing for sale, so they are guaranteed for purity as well as for species.

From sewage and human intestine. Causes dysentery. 

This organism is commonly isolated from sewage, water, soil and dairy products, as it is a normal part of intestinal flora.