(Taylor) Spruce No year - Spruce R. Hepaticae amazonicae et andinaeª quas in itinere suo per tractus montium et fluviorum americæ æquinoctialis a fluminis amazonum ostiis ad maris pacifìci litora usque, necnon a cataractis fluminis orinoci, cis æquatorem, adusque fluvii huallaga cataractas, Transactions and Proceedings of the Botanical Society of Edinburgh 15: 309-588. (1885).
There is no corrections for Porella brachiata yet.