Greeniopsis megalantha 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 : 300

Greeniopsis megalantha Merr., PJS 12 c (1917) Bot. 164.

Materials examined. Table 2.

Medium-sized tree about 9 m high. Leaves elliptic to lanceolate, 15–20 × 5–6 cm, coriaceous, glabrous but with sparse hairs on the midrib. Inflorescences termi- nal, pubescent, many-flowered. Calyx 6 mm, rhomboid, pubescent. Corolla white, urceolate, pubescent outside, lobes 3 mm, tube 4 mm. Fruits ellipsoid, 7–10 mm, brown, pubescent.

This species has the largest flowers compared to all Greeniopsis species and is easily recognized by its somewhat glabrous leaves and stipules ( Alejandro et al. 2010).

Greeniopsis multiflora (Elmer) Merr., PJS 4 c (1909) Bot. 325.

Materials examined. Table 2. Fig. 4C

Shrub about 2 m high, pubescent. Leaves elliptic to obovate, 20–25 × 10–15 cm, glabrous with scattered hairs on midrib. Inflorescences terminal, sparsely pubes- cent, many-flowered. Calyx 2 mm, rhomboid, pubescent. Corolla white, urceolate, pubescent outside, lobes 1 mm, tube 1–2 mm. Fruits subglobose, 4–5 mm, brown, pubescent, with calyx remnants.

In contrast to the other Greeniopsis species found in Eastern Samar and assessed as Critically Endangered, G. multiflora is very widespread across the Philippines.