蝦夷方言藻汐草

The companion transcription lists sumauni under 石岸; Hirayama supplies the recorded heading without a modern equivalent. suma independently means stone, while the shared ウニ ending remains unidentified. The published sumawni was mechanically converted from sumauni. Retain it provisionally at low confidence, comparing sumauni and the speculative division suma un i. No whole-expression corpus match supports any of these candidates.