homotypic synonym, validly published under the ICN (Botanical Code), distinct rank
Notes:
❗ Hapalosiphonlaminosus f. anabaenoides is the correct name instead if this form is regarded as a separate form (i.e., if its nomenclatural type is not assigned to another form whose name is validly published, legitimate and not rejected and has priority) within a separate species Hapalosiphonlaminosus within a separate genus Hapalosiphon.