Masi could mean the (bark of the) dye-fig (Ficus tinctoria), endemic to Oceania, and probably the one originally used to make tapa.
tweed (cloth) | ''The Field of Cloth of Gold'' | tapa cloth | Scarlet (cloth) | Lei'D Tapa | Hield Bros. ''Lambswool Sateen'' cloth seen in the interior of Queen Elizabeth II of the United Kingdom | Cloth of St Gereon | cloth menstrual pad | Clerk of the Green Cloth | Basire's engraving depicting the Field of the Cloth of Gold | A Touch of Cloth | 1st White Cloth Hall |
The Red Mangrove is the state tree of Delta Amacuro in Venezuela; a dark brown dye can be produced from it, which is used in Tongan ngatu cloth production.