How many common names does a Mertensia virginica have?
A lot of protists have only been recently discovered or due to their small size are virtually unknown to most people. This causes many of them to lack common names. However, for those that do have common names you can usually find them by doing a google search. Also see the Wikipedia page on protists where many are shown with their common and scientific names.
Except possibly for obsolete scientific names due to reclassifications, every animal has just one scientific name -- such is the virtue of scientific names. Many animals are called by different names in different parts of the world and so have many common names. In fact, only the rarest , most narrowly distributed animals have only one common name.
Common names vary from place to place and time to time. That is why standard (scientific) names were developed. An exact count of common names is not usually possible and is probably not worth attempting. Citrus sinensis is the scientific name for the sweet orange. Current common names, describing different cultivars or varieties of the sweet orange, include: white orange round orange blond orange Valencia or Murcia orange Hamlin orange Parson Brown orange Balta Belladonna…
Most of the names at that time were taken from the bible so names like John or Joseph were common names. Many people think Mary was in common use, but this is misguided, the name Mary became common only in the very late 1400s because it was considered too holy for normal use before that. Some names used for boys and girls are: Boys Richard Henry John Joseph Girls Elizabeth Alicia