Hedyotis phanerophlebia Merr., PJS

Ordas, Jorge Anton D., Pinarok, Neil Alejandro A., Romeroso, Roanne B., Alejandro, Grecebio Jonathan D. & Banag-Moran, Cecilia I., 2019, A checklist of Rubiaceae species from Eastern Samar, Visayas, Philippines, Check List 15 (2), pp. 295-312 : 308-309

Hedyotis phanerophlebia Merr., PJS 8 (1913) Bot. 34.

Materials examined. Table 2. Fig. 5D

Small, erect shrub about 2 m high. Leaves oblongovate, 6–7 × 2–3 cm, somewhat chartaceous, nerves very prominent. Inflorescences terminal, paniculate. Corolla

white, 3–4 mm including lobes and tube. Capsules ovoid, 7 mm in diameter, with calyx remains present.

This species was previously only recorded on the province of Misamis Occidental, Mindanao, which is far south of Samar. This species thrives on Mount Malindang where it lives in mossy forests above 1700 m in elevation. The flowers of Samar plants are much smaller than those of the type specimen (6 mm).