Cryptocolea - The characteristics of this genus in the Jungermanniaceae family. Gymnocolea - The characteristics of this genus in the Jungermanniaceae family, and of the species Gymnocolea inflate and G. acutiloba. Mylia - The characteristics of this genus in the Jungermanniaceae family, and of the species M. anomala and M. taylori. Nardia - Description of the characteristics of this genus, and the species N. scalaris, N. compressa, N. lescurii, N. geoscyphus, N. insecta and N. breidleri. Tritomaria - Description of the characteristics of this genus, and the distinguishing features of T. exsecta, T. exsectiformis, T. heterophylla, T. polita, T. quinquedentata and T. scitula and their various subspecies. Lophocolea heterophylla - Image from Illinois. Lophozia ventricosa - Several photographs of this species.