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FOC | Family List | FOC Vol. 14 | Cornaceae | Cornus

15. Cornus ulotricha C. K. Schneider & Wangerin, Repert. Spec. Nov. Regni Veg. 7: 228. 1909.

卷毛梾木 juan mao lai mu

Cornus ulotricha var. leptophylla W. K. Hu ex P. C. Li; Swida ulotricha (C. K. Schneider & Wangerin) Soják; S. ulotricha var. leptophylla W. K. Hu.

Trees, rarely shrubs, (1.5–)7–15(–20) m tall. Bark gray, smooth on younger stems, rough on older stems, rectangularly splitting. Young branches reddish brown, sparsely pubescent with short trichomes; old branches yellowish brown, glabrous. Leaves opposite; petiole 1.5–2.8 cm; leaf blade broadly ovate to broadly elliptic, 9–15 × 3–8.5 cm, papery, abaxially grayish, not papillate or only inconspicuously papillate, pubescent with both whitish appressed and brown raised (V-shaped) or curly trichomes, trichomes often deciduous, curly trichomes on veins dense, veins 6 or 7, sometimes slightly oblique, base rounded, apex shortly acuminate. Corymbose cymes 8–12 cm wide, pubescent with a mixture of grayish short appressed trichomes and slightly curly trichomes; lateral branches arched inward; smaller branches nearly all secund, toward center of inflorescence. Pedicels 0.2–2 mm, thick. Flowers white, 6–8 mm in diam. Calyx lobes broadly triangular, 0.3–0.4 mm, shorter than or equal to disk. Petals ligulate-oblong, ca. 4 × 1.1–1.8 mm. Stamens shorter than or equal to petals; anthers yellow, oblong-ovoid. Style cylindrical, ca. 3 mm; stigma subglobose to disciform, broader than style. Fruit bluish black, subglobose, 4.3–4.5 mm in diam.; stones subglobose, 3–4 mm in diam. Fl. May–Jun, fr. Jul–Aug.

Mixed forests, by streams; 800–2700 m. Gansu, Guizhou, Henan, Hubei, Shaanxi, Sichuan, Xizang, Yunnan.

Cornus ulotricha var. leptophylla W. K. Hu ex P. C. Li (in C. Y. Wu, Fl. Xizang. 3: 528. 1986) was published independently from Swida ulotricha var. leptophylla W. K. Hu (Bull. Bot. Res., Harbin 4(3): 106. 1984). The protologues cite a type gathering made at the same locality on the same date, but with different collection numbers.


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