Vanguerieae

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 : 309-310

Tribe Vanguerieae

Canthium glandulosum (Blanco) Merr., PJS 35 (1928) 8.

Materials examined. Table 2.

Shrub about 1 m high. Leaves lanceolate, 5–6 × 2 cm, glabrous. Flowers not seen. Infructescences axillary, in clusters of 2 to 3 fruits, globose, 2 mm, glabrous.

This Philippine endemic is recorded throughout the country, occurring in low- or medium-elevation, primary or secondary forests.

Psydrax amplifolia A.P. Davis, Bot. J. Linn. Soc. 157 (2008) 120.

Materials examined. Table 2.

Shrub about 1 m high. Leaves elliptic to obovate, 12 × 6 cm, glabrous, bases decurrent. Flowers not seen. Infructescences axillary, in clusters of 3–5 fruits, 6–8 mm wide, globose, single or didymous, orange, glabrous.

This species is only known from its type locality on Mount Bulusan in Sorsogon Province. Our observation represents a new record for this species beyond its type locality.

Pyrostria elmeri (Merr.) Arriola, Meve, Alejandro, Ann. Bot. Fennici 53 (2016) 217.

Materials examined. Table 2. Fig. 4D

Shrub about 2 m high, branches droop down. Leaves oblong to oblanceolate, 10 × 3 cm, glabrous, coriaceous. Flowers not seen. Infructescence axillary, solitary, attached to 1 cm long peduncle, obovate, 10 mm in diameter, orange, glabrous.

This species was only known from its type locality on Mount Guiting-guiting on Sibuyan Island, Romblon, occurring in forests along streams. Its presence on Eastern Samar suggests an extended distribution across the Visayas Islands.