Radula patrickmuelleri sp. nov. and R. cretacea. A–E. R. patrickmuelleri, GZG.BST.22041 (Müller BuB4395), holotype; A. Lobe cells, dorsal; B. Antical leaf margin with gemmae, dorsal; C. Detail of gemmae (smaller spherical bodies possibly represent air bubbles and debris); D. Lobe apex with large gemmae, dorsal; E. Lobe margin with gemmae in the initial stage of development, dorsal (initial periclinal cell division visible and indicated by black arrow); F–H. R. cretacea, PB22484, holotype; F. Gametophyte with large gemmae on the lobe margins, ventral; G, H. Gemmae in different stages of development (initial anticlinal cell division visible and indicated by black arrow). The asterisks indicate selected gemmae in different stages of development.

 
 
  Part of: Feldberg K, Schäfer-Verwimp A, Li Y, Renner MAM (2022) Extending the diversity of the bryoflora in Kachin amber (Myanmar), with the description of Radula patrickmuelleri, sp. nov. and R. tanaiensis, sp. nov. (Jungermanniopsida, Porellales, Radulaceae). Fossil Record 25(1): 213-230. https://doi.org/10.3897/fr.25.82362