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Backusella obliqua (URM 8427): (A) sporangiophore with sporangium; (B) branched sporangiophore with sporangia; (C) branched sporangiophore with sporangium and columella; (D–G) sporangiophore with columella; (H) short-branched sporophore bearing uni- and multispored sporangiola; (I) short-branched sporophore bearing only multispored sporangiola and columella; and (J) sporangiospores. Scale bars: (A,D–G,J) = 25 μm; (B,C) = 200 μm; (H,I) = 50 μm.
