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

7. Helixanthera scoriarum (W. W. Smith) Danser, Bull. Jard. Bot. Buitenzorg, sér. 3. 10: 318. 1929.

滇西离瓣寄生 dian xi li ban ji sheng

Loranthus scoriarum W. W. Smith, Notes Roy. Bot. Gard. Edinburgh 10: 184. 1918.

Shrubs 1-2 m tall, branchlets and leaves brown scurfy when young, becoming glabrous. Branches dark brown, scattered lenticellate. Leaves opposite or subopposite; petiole 7-15 mm; leaf blade lanceolate to oblong-ovate, 5-12 × 1.5-6 cm, papery, lateral veins 4 or 5 pairs, slender, base cuneate and slightly decurrent, apex acuminate. Racemes solitary or paired, axillary, 10-16-flowered, 3-4 cm, brown scurfy; bracts ovate concave, ca. 2 mm. Flowers opposite, 4-merous. Pedicel absent. Calyx ovoid, ca. 1.5 mm, limb annular, 4-denticulate. Mature bud cylindric. Corolla orange, base slightly inflated, 4-angled, scurfy, petals lanceolate, 9-12 mm, reflexed from middle. Filaments ca. 3.5 mm; anthers 4-loculed, ca. 2.5 mm. Style 4-angled, 10-12 mm; stigma capitate. Berry yellowish green, ellipsoid, 7-8 × ca. 5 mm, smooth. Fl. and fr. May-Dec.

* Forests or thickets on mountain slopes; 1600-2100 m. Yunnan (Lincang, Tengchong, Yingjiang).

The plants are parasitic on species of Lithocarpus, sometimes growing on moist ground in forests, where it is apparently a root parasite.


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