复数： thalli

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Green seaweed having a thallus two cells thick : sea lettuce .

绿色海藻具有两个细胞厚度的叶状体;海莴苣。

Forming hormogonium is a main reproductive way of nostoc flagelliforme by thallus .

形成藻殖段是发菜原植体繁殖的主要方式。

Effects of different culture conditions on development and differentiation of somatic cells of porphyra haitanensis thallus .

不同培养条件对坛紫菜叶状体体细胞发育分化影响的研究。

Composed of filaments or plates of cells , a thallus ranges in size from a single-celled structure to a complex treelike form .

原植体为丝状或片状，大小不一，小的仅数个细胞，大的形态复杂如树状。

Thallus a plant body undifferentiated into stem , root , or leaf .

无根、茎、叶分化的植物体。