4. Coffea liberica W. Bull ex Hiern, Trans. Linn. Soc. London, Bot. 1: 171. 1876.
大粒咖啡 da li ka fei
Coffea dewevrei De Wildeman & T. Durand.
Small trees or large shrubs, 6-15 m tall; branches flattened to weakly angled, often rather stout, glabrous. Petiole 8-20 mm, often rather stout, glabrous; leaf blade drying thinly leathery to stiffly papery, elliptic to obovate or obovate-elliptic, 14-38 × 5.5-12(-20.5) cm, glabrous on both surfaces, base cuneate to obtuse, margins flat, apex obtuse to shortly acuminate with tip 4-10 mm; secondary veins 7-10(-13) pairs, without domatia or with glabrous to pilosulous foveolate domatia; stipules broadly triangular, 2-4.5 mm, obtuse to acute but not aristate. Inflorescences with cymes 1-3 per axil, each cyme fasciculate to subcapitate, 2-10-flowered, subsessile; bracts cupuliform, 1-3 mm; pedicels to 1 mm. Calyx glabrous; ovary portion ellipsoid-cylindrical, 1.5-3.5 mm; limb reduced or glandular-denticulate, to 0.2 mm. Corolla white, funnelform, outside glabrous; tube 4-13 mm; lobes 6-8, spatulate to lanceolate or narrowly elliptic, 8-16 mm, obtuse to rounded. Drupe red, ellipsoid, 19-21 × 15-17 mm, smooth when dry, glabrous. Fl. Jan-May, fr. presumably Aug-Nov.
Cultivated in moist, warm to cool regions. Fujian, Guangdong, Hainan, Yunnan [widespread in tropical Africa; widely but not intensively cultivated in tropical regions worldwide].
This species is diploid and is cultivated as "Liberica Coffee." It has been hybridized with several other species to produce commercial coffee plants.