Hong Kong Herbarium

Rare and Precious Plants of Hong Kong (Online Version)

Preface
Introduction
Text
Appendix 1
Appendix 2
Appendix 3

(58) 烏檀
Nauclea officinalis
(Pierre & Pit.) Merr. & Chun
茜草科 (Rubiaceae)

Status in China: Vulnerable (VU). Illustration of Rare & endangered plant in Guangdong Province.


 
Description: Evergreen trees; branchlets slender and smooth. Leaves opposite; petiole 10-15 mm; stipule caducous; leaf blade elliptic, 7-11 cm long and 3.5-5 cm wide. Flowers congregate into a terminal head. Calyx tube coalescent, fleshy. Corolla funnel-form, 5-lobed; stamens 5, inserted on throat of corolla-tube. Ovary inferior, 2-celled. Fruit globose, formed of numerous coalescent drupes.

Distribution: Restricted to Sheung Wo Hang and Bride's Pool. Hainan, Guangdong, Guangxi; Vietnam, Laos, Thailand and Malaysia.

Habitat and Ecology: In Hong Kong, it grows mainly in fung shui woods. Flowering: Jul.-Aug.; fruiting: Sept.-Oct.

Wood of this species is a commercial timber used in construction; bark and wood used as medicine. Destruction of habitats and timber extraction occur elsewhere. This species is relatively rare in Hong Kong, but the localities of its occurrence are within Country Parks under protection. Trails of propagating this species by seeds have been carried out at AFCD.

References:

吳德鄰等,1988,廣東珍稀瀕危植物圖譜,41,圖133。 中國環境科學出版社,北京。
羅獻瑞,1999:中國植物誌,71(1):260。科學出版社,北京。


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