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Title
Studies on Geocalycaceae XIV. Physotheca J. J. Engel & Gradst., a new genus of Hepaticae from Ecuador, belonging to a new subfamily, Geocalycaceae subfan. Physothecoideae J. J. Engel & Gradst.
Discusses Physotheca autoica, a new genus of Hepaticae from Ecuador. Analysis of the mode of growth of Physotheca; Examination of capsule wall anatomy; Placement of Physotheca.