Glossostigma submersum Petrie
type locality: Lake Waihola. Type: W, D. Petrie.
Minute herb forming small rather dense patches. Stems almost filiform, ± imbricate, creeping, rooting at nodes. Lvs (2)-4-6 mm. long, linear to linear-spathulate, opp. or sts fascicled, entire, glab., petiole ± = lamina. Fls c. 1·5 mm. diam., peduncles ± = lvs, axillary. Calyx obtusely 3-lobed; corolla hardly > calyx, lobes blunt. Stamens 2, enclosed in corolla. Capsule globose, not > calyx, c. 1·5-1·75 mm. diam.
DIST.: S. Known only from
Apparently has not again been gathered. Petrie (loc. cit. 401) describes his sp. as "A minute herb . . . Pedicles as long as the leaves, axillary, very slender, borne alternately on opposite sides of the creeping stems . . . This curious little species grows on the shores of Lake Waihola below high tide level, and is submerged for a good many hours daily."
