Flower primordium - Kagenki

…In vascular plants, even after the embryo has finished differentiating, the shoot apex and root tip retain embryonic properties, and because organs differentiate from the meristem at these sites, they are also called primordia. Flower primordia are formed at the tip of the shoot apex, leaf primordia are formed a little below the apex of the growing point, and lateral root primordia are located a little away from the root tip and endogenously differentiate into roots. [Iwatsuki Kunio]. …

*Some of the terminology that mentions "flower primordium" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

…維管束植物では，胚が分化を終えてからも，茎頂と根端には胚的性質が残されており，これらの部位で器官が分裂組織から分化してくるので，こちらも原基と呼ばれる。花原基は茎頂の先端に，葉原基は生長点の頂端から少し下がったところにつくられ，また，側根原基は根端から少し離れた部位にあって，内生的に根を分化させる。【岩槻 邦男】。…

※「花原基」について言及している用語解説の一部を掲載しています。

出典｜株式会社平凡社世界大百科事典 第２版について | 情報