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今发现有将香橼与枳壳混用。二者均为芸香科植物,形状相似,但功用不尽同,今将二者性状鉴别特征介绍如下。香橼(Citrus wilsonii):本品为类球形、半球形或圆形片。表面黑绿色或黄绿色,密被凹陷的小油点及网状隆起的粗皱纹,顶端有花柱残痕及隆起的环圈,基部有果梗残迹。质坚硬。横切面观察,边沿油点明显,中果皮厚约5mm,瓤囊9～11室,棕褐色或淡红棕色,间或有黄白色种子。气香,味酸而苦。
Nowadays, there is a mixture of citron and clam shells. Both are Rutaceae plants, similar in shape, but their functions are not the same. Now the characteristics of the two characters are described below. Citrus wilsonii: This product is spherical, hemispherical or round piece. The surface is dark green or yellow-green, with small oil spots densely densed and coarse wrinkles bulging up in the reticular pattern, with studs and raised loops at the top, and fruit stem remnants at the base. Hard quality. Observed from the cross-section, the edge of the oil is obvious, the mesocarp is about 5mm thick, the hernia sac 9~11 rooms, brown or reddish-brown, and there are yellow-white seeds. Gas incense, sour and bitter.