Show type of group on the home group page

Hi, thank you very much for the great pluging ??
I am working on showing the type of groups at the home group, but i dont find the function that let me show these informacion of the group.
I know it is not your development but maybe you can give me a clue where to look …
I am using this code to show it but i dont know wich “function I sould call”….

<a href="<?php bp_group_permalink(); ?>"><?php bp_group_name(); ?></a></b><b><a href="<?php bp_group_permalink(); ?>"><p>Group type:</p><?php "function I sould call"(); ?></a></b>');

I will be very grateful for any guidance you can give me, Thanks