Hi Chris
Apologies but I wouldn't be able to rule on that (it's not my field of expertise), other than to say that if I had to choose a source for algae then I'd go for AlgaeBase. WoRMS bases its taxonomy on AlgaeBase anyway but might be slightly behind the original source.
Just reading AlgaeBase it seems confusing because both are accepted so could they both be valid names for 2 different organisms? They are phonetically the same but technically different names.
Best wishes,
Chris R.
Chris Raper, Manager of the UK Species Inventory, Angela Marmont Centre for UK Biodiversity,
Natural History Museum, Cromwell Road, London, SW7 5BD. (tel: 020 7942 5894)
also Tachinid Recording Scheme (http://tachinidae.org.uk/)