单词perisperm
n.: 【植】外胚乳
【植物;植物学】外胚乳
The perisperm cells are elongated rectangularity , square shaped 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；
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。
perisperm surrounded by embryo.
外胚乳被外胚乳包围的。
perisperm scant or absent.
外胚乳不够的或无。
Seeds without endosperm and perisperm;
种子无内胚乳和外胚乳；
A Study on the Embryo and Its Nutritive Tissues, Endosperm and Perisperm of Nymphaeaceae in China
中国睡莲科植物种子胚及其营养组织的研究
Seed 1, unitegmic, endosperm and perisperm absent;
种子1，单珠被，胚乳和外胚乳无；