A `data.frame` containing the size and other attributes of species from genus Ammonia. The variables are as follows:
ammonia
A `data.frame` with 867 rows and 7 variables:
species of genus Ammonia from which raw data were gathered
number of individuals by species
test height in um (82.05--390.65)
test minor diameter in um (20--220)
test major diameter in um (75.1--364.6)
test surface area in um2 (4438--107903)
percent cell occupancy of the test (11--100)