Radula, Dumortier, 1822

Oliveira-Da-Silva, Fúvio Rubens, Ilkiu-Borges, Anna Luiza & Gradstein, S. Robbert, 2022, Two new Neotropical taxa of Radula Dumort. (Marchantiophyta: Radulaceae) with bordered leaves, Phytotaxa 564 (1), pp. 95-103 : 100

Key to Neotropical species of Radula with bordered leaf lobes

1. Lobules ligulate ...................................................................................................................................................................... R. ligula

1. Lobules subquadrate...........................................................................................................................................................................2

2. Leaf border reddish-brown, 3-5 cell rows wide, walls of the leaf border evenly thickened, without trigones. Leaves distant........... .............................................................................................................................................................................................. R. smithii

2. Leaf border 1 cell row wide, walls of the leaf border thickened with bulging trigones. Leaves imbricate ......................................... ..................................................................................................................................................................... R. pallens var. marginata