bryophyte

1.Protonema (pl. protonemata) The young bryophyte gametophyte that develops following spore germination.

苔藓植直接由孢子萌发形成的结构称为原丝体。

2.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的由单个细胞形成的类似根的结构。