Description Shrub to small tree, height unknown. Stem terete, canaliculate with 2 longitudinal grooves when dry. Internodes 1.5 – 3.5 cm long. Stipule flabellate, 4 – 5 × 6 – 8 mm, Leaf-blades obovate to elliptic, 27 – 29 × 8.5 – 9 cm, apex acuminate, acumen 1 – 1.5 cm, base truncate, slightly decurrent to petiole, midrib slightly raised at adaxial and abaxial, secondary nerves 12 from each side of the midrib. Petioles 2.5 – 3.5 cm long, 1.5 – 2 mm wide. Inflorescence / flowers not seen. Infructescence one per stem, compound cyme with 3 capitula appearing as one head, 4 cm long, peduncle 3 × 0.3 mm, branches and rachis 2 – 4 mm long, bracts of rachis and branches 2, ovate, 0.5 × 0.4 mm, bracts of capitulum ovate with a chaffy edge, 4 – 5 × 5 mm. Pedicel of fruit 3 – 5 mm long. Fruit ellipsoid to ovoid, 8 – 11 × 5 – 7 × 5 mm, calyx persistent, not accrescent, 3 × 1 mm, disc persistent, not accrescent, 0.8 × 0.8 mm, fruit surface convex, with two adjacent parallel longitudinal crests 0.4 mm wide, 0.6 mm apart along their length, forming a longitudinal groove from apex to base between the two crests. Pyrene not seen.
Sumber: Revision of Chassalia (Rubiaceae-Rubioideae-Palicoureeae) in Borneo, with 14 new species