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FOC | Family List | FOC Vol. 8 | Saxifragaceae | Hydrangea

19. Hydrangea sungpanensis Handel-Mazzetti, Symb. Sin. 7: 444. 1931.

松潘绣球 song pan xiu qiu

Shrubs or small trees, 3-10 m tall. Branchlets brown to gray-brown, thick, strigose, glabrescent, with lenticels; bark thick, peeled off into fragments. Petiole 2-6 cm; leaf blade abaxially dark yellow-green and adaxially brownish when dry, oblong-elliptic, oblong-ovate, or broadly ovate, 9-19 × 4-14 cm, papery to thickly so, abaxially densely glandular papillate and and crisped pilose, adaxially shortly strigose along veins, secondary veins 8-10 on both sides of midvein, erect or slightly curved near margin, plane on both surfaces, base broadly cuneate, rounded, or subtruncate, margin serrulate, apex acute to shortly acuminate. Inflorescences corymbose cymes, 12-25 cm wide; peduncle short; branches 3, thick, pubescent. Sterile flowers with sepals 3-5, pinkish to yellowish, ovate, obovate, or suborbicular, subequal, 1.2-2.5 × 1.2-2.4 cm, margin entire or apically few denticulate. Fertile flowers with calyx tube campanulate, ca. 1.2 mm; teeth triangular, ca. 1 mm. Petals greenish, oblong-ovate, 2.5-3 mm. Stamens 10, unequal; anthers subglobose, ca. 0.7 mm. Ovary almost 1/2 superior. Capsule ovoid-globose, ca. 3.5 mm in diam., projected apical part conical, ca. 1.5 mm, slightly shorter than calyx tube; persistent styles 3 or 4, clavate, ca. 1 mm. Seeds brown, narrowly ellipsoid to fusiform, slightly compressed, 1.5-2 mm including long wings at both ends; seed coat striate veined. Fl. Jul, fr. Sep.

* Dense to sparse forests on mountain slopes or tops; 2300-3500 m. Sichuan, Yunnan.


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