The perisperm cells with flat walls are full of starch grains. 外胚乳细胞壁平直，细胞内充满淀粉。
Food materials may be stored in a special tissue derived from the nucellus, called the perisperm. 营养物质可以贮藏于由珠心产生的一种特殊组织，叫外胚乳。
The perisperm cells are elongated rectangularity, squareshaped or polygon full of starch grains. 外胚乳细胞长条形、方形或多边形，细胞内充满淀粉；
Seed red-brown, sublustrous, lenticular, 2-3 mm in diam.;perisperm farinaceous.Fl. 种子红棕色，近有光泽的，透镜状，2-3毫米直径；
Anatomy and histochemistry of the seeds of Cautleya gracilis were studied in this paper.The results show that the seed of Cautleya gracilis comprises seed coat, perisperm, endosperm and embryo. 摘要距药姜种子解剖学和组织化学研究表明，种子包括种皮、外胚乳、内胚乳和胚。
