Used Occasionally. protozoa is one of the 30000 most commonly used words in the Collins dictionary.
It is a species of hardy deciduous flowering shrub in the genus Dasiphora (formerly Potentilla) of the family Rosaceae, native to the cool temperate and subarctic regions of the northern hemisphere, often growing at high altitudes in mountains.
Armillaria solidipes. Armillaria solidipes (formerly Armillaria ostoyae) is a species of fungus in the Physalacriaceae family. It is the most common variant in the western U.S., of the group of species that all used to share the name Armillaria mellea. Armillaria solidipes is quite common on both hardwood and conifer wood in forests west of the Cascade crest.