天目木姜子Litsea auriculata

中文名Chinese Name):天目木姜子
学名Scientific Name):Litsea auriculata Chien et Cheng
英文名(English Common Name):
别名(Chinese Common Name):圆叶木姜子
异名(Synonym):
科属(Family & Genus):樟科(Lauraceae)木姜子属
形态特征(Description):落叶乔木,高10-20米,胸径40-60厘米;树皮灰色或灰白色,小鳞片状剥落,内皮 深褐色。小枝紫褐色,无毛。叶互生,椭圆形、圆状椭圆形、近心形或倒卵形,长9.5-23 厘米,宽5.5-13.5厘米,先端钝或钝尖或圆形,基部耳形,纸质,上面深绿色,有光泽,下面苍白绿色,有短柔毛,羽状脉,侧脉每边7-8条,中脉在叶上面下陷,被短柔毛,老时变无毛,下面中脉、侧脉均突起,沿脉有短柔毛;叶柄长3-8厘米,无毛。伞形花序无总梗或具短梗,先叶开花或同时开放;苞片8,开花时尚存,每一花序有雄花6-8朵;花梗长1.3-1.6厘米,被丝状柔毛;花被裂片6,有时8,黄色,长圆形或长圆状倒卵形,长4-5毫米,外面被柔毛,内面无毛;能育雄蕊9,花丝无毛,第3轮基部腺体有柄;退化雌蕊卵形,无毛;雌花较小,花梗长6-7毫米,花被裂片长圆形或椭圆状长圆形,长2-2.5毫米;退化雄蕊无毛;子房卵形,无毛,花柱近顶端略有短柔毛,柱头2裂或顶端平。果卵形,长13-17毫米,直径11-13毫米,成熟时黑色;果托杯状,深3-4毫米,直径6-7毫米;果梗长12-16毫米。花期3-4月,果期7-8月。
分布(Distribution):产浙江(天目山和天合山)、安徽南部(款县)。生于混交林中,海拔500-1000米。
用途(Use):木材带黄色,重而致密,可供家具等用;果实和根皮,民间用来治寸白虫;叶外敷治伤筋。
引自植物志英文版:FOC Vol. 7 Page 118, 122     
Litsea auriculata S. S. Chien & W. C. Cheng, Contr. Biol. Lab. Sci. Soc. China, Bot. Ser. 6: 59. 1931.
天目木姜子 tian mu mu jiang zi | Lauraceae  | Litsea
Deciduous trees, 10-20 m tall, 40-60 cm d.b.h. Branchlets glabrous. Leaves alternate; petiole 3-8 cm, glabrous; leaf blade elliptic, rounded-elliptic, subcordate, or obovate, 9.5-23 × 5.5-13.5 cm, glaucous, pubescent abaxially, pinninerved, lateral veins 7 or 8 pairs, base auriculate, apex obtuse, obtuse-acute, or rounded. Umbels shortly pedunculate or sessile, 6-8-flowered, flowering before leaves or at same time. Pedicel 1.3-1.6 cm, sericeous-pubescent. Perianth segments 6(or 8), yellow, obovate. Male flowers: fertile stamens 9; filaments glabrous, of 3rd whorls each with 2 stipitate glands at base; rudimentary pistil ovoid, glabrous. Fruit ovoid, 13-17 × 11-13 mm, seated on cup-shaped perianth tube, black at maturity; fruiting pedicel 12-16 mm. Fl. Mar-Apr, fr. Jul-Aug.
● Mixed forests; 500-1000 m. S Anhui, Zhejiang.
The wood is yellow, heavy, and dense, and is used for making furniture, etc. The root bark, leaves, and fruits are used medicinally.
天目木姜子Litsea auriculata

天目木姜子Litsea auriculata(责任编辑:徐晔春)

顶一下[2]

踩一下[0]