Protonema (pl. protonemata) The young bryophyte gametophyte that develops following spore germination.
苔藓植中直接孢子萌发形成结构称为原丝体。
Protonema (pl. protonemata) The young bryophyte gametophyte that develops following spore germination.
苔藓植中直接孢子萌发形成结构称为原丝体。
Rhizoid A unicellular rootlike structure found in certain algae and in the gametophyte generation of the bryophytes and some ferns.
一些藻类、苔藓植和裸子植配子体中存单个细胞形成类似根结构。
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