Jungermanniopsida

class of leafy and simple-thalloid liverworts Jungermanniopsida (Jungermanniopsida) is a class of organisms united by key anatomical and physiological traits. It contains 8 orders with 225 known species. Key order groups include Fossombroniales, Jungermanniales, Metzgeriales, Pallaviciniales, Pelliales, and Pleuroziales. Among its members, 63 species are currently classified as threatened (Critically Endangered, Endangered, or Vulnerable). It belongs to liverwort (Marchantiophyta).