Sargassum aquifolium (Turner) C. Agardh var. intercedens Grunow, 1916 [1915–1916]: 24 (type locality: Kupang, Timor, Indonesia).
INDIAN OCEAN DISTRIBUTION: Indonesia.
Note: Specimens of this variety were found in herbaria at Berlin (B) and Paris (PC) by Reinbold (in Weber-van Bosse, 1913a: 155) under the manuscript name Sargassum aquifolium var. martensii Grunow.