Sargassum micracanthum (Kützing) Endlicher, 1843

Belleza, Dominic Franco C., Tateishi, Hiroto, Tanimae, Shin-Ichiro, Kobayashi, Taishun, Aota, Tomoyuki, Urasawa, Toshiki & Nishihara, Gregory N., 2025, An annotated list of brown seaweeds (Phaeophyceae) from Nakadori Island (northern Goto Islands, Nagasaki, Japan), Phytotaxa 694 (1), pp. 1-24 : 15

publication ID	https://doi.org/10.11646/phytotaxa.694.1.1
persistent identifier	https://treatment.plazi.org/id/03FBD87A-FFA1-587F-FF5A-FC8CFD7CFB13
treatment provided by	Felipe
scientific name	Sargassum micracanthum (Kützing) Endlicher, 1843
status

Treatment

Japanese name: トゲモク (togemoku)

Basionym: Halochloa micracantha Kützing, 1843

Type locality: — Japan

Description and remarks: —Specimens are bushy, reaching up to 25 cm tall and have robust discoid holdfasts up to 1 cm in diameter. The main axis is cylindrical with a diameter of 1.5–2 mm. Leaves grow directly from the main axis, pinnatisect, having deeply incised margins with distinct midribs. The vesicles are spherical to ovoid in shape with caudate tips or terminated by a leaflet. Vesicles are found growing densely on the base of leaves close to the terminal portions of the plant. This species was found along the windward side of Yokoura from early-mid summer, together with S. muticum and S. ilicifolium .

Material examined: —18ECS1-48 (1 to 8)