The Cryptogamic Herbarium at the Natural History Museum, London (BM) contains about 780,000 specimens of mosses, of which about 20,000 are types. These represent types of between 4,000 and 7,000 ...
Of course, there are downsides to using mosses (plants in the phylum Bryophyta) as ground covers or lawn alternatives, including their preference for full shade locations and compact soil ...