在种子世界里，这使得它们很稀有，因为大多数开花植物的种子都很结实。
In the seed world, that makes them rare, because most seeds from flowering plants are quite robust.
结果表明：该属植物种子微形态特征在种的水平上具有分类学意义；同种的不同地方居群间基本类型一致，但也存在一定程度的变异。
The results show that the seeds micro-morphological characteristics have taxonomic and significance at species level and there is little variation existing in different populations.
结果表明：该属植物种子微形态特征在种的水平上具有分类学意义；同种的不同地方居群间基本类型一致，但也存在一定程度的变异。
The results show that the seeds micro-morphological characteristics have taxonomic and significance at species level and there is little variation existing in different populations.
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