SelaginellaBot.|sɪleɪdʒ-, sɪlædʒɪˈnɛlə| [mod.L., dim. of Selago.] A genus of cryptogams; also (with pl.) a plant of this genus. 1865Gosse Land & Sea 350 A carpet of lovely green Selaginella.1891L. H. Bailey Nursery-bk. (1896) 24 Ferns, lycopodiums and selaginellas are often grown from spores.