Mining the total species number for any plant family

The function powoFam returns a data frame or saves a CSV file listing the total species number (excluding hybrid species) for the queried plant families.

The example below shows how to mine the total species number by defining a vector of three families: Cabombaceae, Lecythidaceae, and Martyniaceae. The resulting output (TABLE 1) is also saved directly in the specified directory results_powoFam.

CLM <- powoFam(family = c("Cabombaceae", "Lecythidaceae", "Martyniaceae"),
               verbose = TRUE,
               save = FALSE,
               dir = "results_powoFam",
               filename = "Camb_Lecy_Martyniaceae_diversity")

Mining species number accross all plant families

To mine the species number of all families of vascular plants, we recommend to load the dataframe-formatted object called POWOcodes that comes associated with the expowo package. The POWOcodes data object already contains the URI addresses for all plant families recognized in the POWO database, so you just need to call it to the R environment.

The example below shows how to mine the species number of all vascular plant families by using the vector of all plant families and associated URI addresses stored in the POWOcodes object.

utils::data(POWOcodes)

ALL_fam <- powoFam(POWOcodes$family,
                   verbose = TRUE,
                   save = FALSE,
                   dir = "results_powoFam",
                   filename = "all_plants_species_number")

Reference

POWO (2019). “Plants of the World Online. Facilitated by the Royal Botanic Gardens, Kew. Published on the Internet; http://www.plantsoftheworldonline.org/ Retrieved April 2023.”