Recently, I transferred Ectochaete endophytum to Coelodiscus Jao (van den Hoek, 1965). Dr. R. C. Bakhuizen van den Brink (Rijksherbarium, Leiden), however, drew my attention to the fact that Coelodiscus Jao (1941) is a later homonym of Coelodiscus Baillon (1858). The new generic name Jaosaccion is therefore proposed for the ulotrichalean species so far ranged under Coelodiscus Jao.