{{Automatic taxobox
| image = Collema flaccidum (Ach.) Ach 316011.jpg
| image_caption = Collema flaccidum
| taxon = Collema
| authority = Weber ex F.H.Wigg., 1780
| type_species = Collema lactuca
| type_species_authority = (Weber) Weber ex F.H.Wigg. (1780)
| subdivision_ranks = 种
| subdivision = 见正文
| synonyms_ref =
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