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FOC | Family List | FOC Vol. 5 | Loranthaceae | Loranthus

6. Loranthus delavayi Tieghem, Bull. Soc. Bot. France. 41: 535. 1894.

周树桑寄生 zhou shu sang ji sheng

Hyphear delavayi (Tieghem) Danser; H. koumense (Sasaki) Hosokawa; Loranthus delavayi var. latifolius Tieghem; L. koumensis Sasaki; L. owatarii Matsumura & Hayata.

Shrubs 0.5-1 m tall, all parts glabrous. Branches not dichotomous, blackish, scattered lenticellate. Petiole 5-10 mm; leaf blade ovate to elliptic, rarely oblong-lanceolate, (5-)6-10 × 2.5-3.5 cm, papery or leathery, lateral veins 5 or 6 pairs, base broadly cuneate, rarely cuneate and slightly decurrent, apex obtuse. Spikes solitary or 2- or 3-fascicled, axillary, 8-16-flowered, 1-4 cm; bracts ovate, concave, ca. 0.5 mm. Flowers unisexual (plants dioecious), 6-merous. Calyx ovoid, ca. 1 mm. Male flowers: mature bud clavate, 4-5 mm; corolla yellowish green, petals linear-spatulate; stamens inserted on middle of petals, filaments 1-2 mm; anthers 4-loculed, 1-1.5 mm; sterile style filiform or cylindric, 1.5-2 mm, apex acuminate or 2-lobed, rarely acute. Female flowers: mature bud cylindric; petals lanceolate, 2.5-3 mm; staminodes 1-1.5 mm; anthers filiform or absent; style ca. 2.5 mm, 6-angled; stigma capitate. Berry yellowish, ovoid, ca. 5 × 4 mm in diam. Fl. Jan-Mar, fr. Sep-Oct.

Forests, mountain slopes, valleys; (200-)500-3000 m. Fujian, S Gansu, Guangdong, Guangxi, Guizhou, Hubei, Hunan, Jiangxi, S Shaanxi, Sichuan, Taiwan, S Xizang, Yunnan, Zhejiang [Myanmar, Vietnam].

Recorded hosts include Alnus japonica, Pyrus pyrifolia, species of Fagaceae, and rarely Keteleeria evelyniana.

Barlow (Fl. Malesiana, Ser. 1, Spermatoph. 13: 355. 1997) regarded this species as synonymous with Loranthus odoratus Wallich, but the illustration and description suggest that the plant he studied was not the same as the Chinese material, differing in particular by the long, solitary inflorescence.


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