19. Cerasus conadenia (Koehne) T. T. Yu & C. L. Li, Fl. Reipubl. Popularis Sin. 38: 50. 1986.
锥腺樱桃 zhui xian ying tao
Prunus conadenia Koehne in Sargent, Pl. Wilson. 1: 197. 1912; P. macradenia Koehne.
Trees or arborescent shrubs, 6–10 m tall. Stems ca. 30 cm in diam.; branches glabrous; older branchlets dark brown to grayish white; young branchlets brown. Winter buds ca. 3 mm, glabrous. Stipules 3–4 mm, herbaceous, caducous, margin glandular serrate. Petiole 1.2–1.8 cm, glabrous, usually with 2 to several distinct nectaries at apex or at leaf blade base; leaf blade obovate, 3–9 × 2–4.8 cm, papery, abaxially glabrous or pilose along midvein, adaxially sparsely strigulose when young, more densely strigulose along veins, and glabrescent, base cordate, rounded, or broadly cuneate, margin mostly biserrate and teeth with a conical apical gland, apex caudate-acuminate; secondary veins 8–14 on either side of midvein. Inflorescences subcorymbose-racemose, 2–3 cm excluding peduncle, 3.4–8 cm in fruit, 4–8-flowered; involucral bracts soon caducous; peduncle 5–10 mm, longer in fruit, glabrous; rachis glabrous; bracts 7–10, 1–3 basal ones usually sterile and ovate to orbicular, apical ones fertile and oblong, 0.5–2.5 × 0.4–1 cm, margin serrate, teeth with a conical apical gland. Flowers opening at same time as leaves. Pedicel 0.5–2 cm, glabrous. Hypanthium tubular, ca. 4 × 5 mm, outside glabrous. Sepals oblong triangular, ca. 3.5 mm, reflexed, glabrous, margin sparsely glandular-denticulate, apex acute. Petals white, rotund-ovate, ca. 6 × 4.5 mm, apex erose. Stamens 27–30. Style nearly as long as stamens, basally sparsely villous. Drupe red, ovoid, ca. 1 × 0.8 cm; endocarp obliquely compressed ovoid, ca. 7 × 4–5 mm, markedly furrowed along keel, apex slightly pitted. Fl. Jun, fr. Jul.
Forest, woodlands; 2300--3000 m. Gansu, Guizhou, Henan, Qinghai, Shaanxi, Sichuan, Xizang, Yunnan.