"micro tube racks"

Unusual well-formed sedimentary bodies believed to have formed from the aggregates of algal organisms and cyanobacteria in ancient waters.

Freshwater. Unicellular; lunate. Proteose agar.

Characterized by green plastids and cell walls composed of cellulose.

Cellular slime mold. Demonstrates amoeboid state, pseudoplasmodial state, and fruiting body, or sorocarp.

Water mold and fish parasite. Demonstrates sporangia and oospores. Grows on wheat seed, cucumber seed, or hemp seed in water environment. Reproduces sexually and asexually. Incubation temperature 25°C.

Cell walls made of cellulose; feeds by extending hyphae into host's tissue.

This organism is commonly recovered from soil and water. As normal intestinal flora, it can also usually be found in sewage.

Three Morphology Types in One Tube

Unusual glassy tubes of fused sand produced by lightning strikes in desert sediments. Average size: 1.5"- 2".

Specially Prepared “Real-Life” Combinations
The world is teeming with a wide variety of micro life, making studying samples of pond water complicated especially for the beginning student. To lessen the confusion, Ward's has prepared different culture mixes that reflect protist combinations that occur in the real world, yet eliminates the hundreds of other life-forms found in a collected sample.

This unusual-looking Echinoderm, a small ball-shaped organism, displays radial symmetry. It moves via tube feet.

Deuteromycete. Causes thrush, candidiasis. Multiplies by budding. Forms germ-tubes in serum cultures. Incubation temperature 37°C. Potato dextrose agar growth medium. Note: Pathogen.