Adventitious bud

Japanese: 不定芽 - ふていが（英語表記）adventitious bud

A general term for buds that, for some reason, grow on the leaf surface, parts of the roots, or other organs or tissues that do not normally produce buds. They grow at the tips of leaves in spider ferns, blue ferns, and Japanese laurel fern, on the leaf surfaces in common ferns, and on the edges of leaves in Kalanchoe pinnata, which then fall to the ground and become seedlings. Begonia leaf cuttings are good examples. In black locust and jujube, they grow in various places on the horizontal roots. As opposed to fixed buds that grow from a fixed location, such as terminal buds that grow from the tip of a stem, and axillary buds or accessory buds that grow from the leaf axils.

Source: Encyclopaedia Britannica Concise Encyclopedia About Encyclopaedia Britannica Concise Encyclopedia Information

Japanese:

なんらかの理由で，葉面とか根の一部とかその他本来は芽を生じない器官や組織から出る芽の総称。クモノスシダ，オリヅルシダ，ショウジョウバカマでは葉の先に，コモチシダでは葉の表面に，またセイロンベンケイソウでは葉の縁に生じ，それらが地に落ちて幼植物となる。ベゴニアの挿葉なども好例。またニセアカシア，ナツメなどでは横走する根のところどころに生じて繁殖する。茎の先端から生じる頂芽，葉腋から生じる腋芽または副芽のように，定まった場所から生じる定芽に対する。

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