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天気予報北杜市September 20, 2009
これは何でしょう？
コメント
キク科だというのはすぐにわかったんですが、
そうか、コスモスってこんなふうに咲くんですね。
ぷーままさん、これは咲いた後種が出来るまでの間だと思います。よく見ると不思議な構造になってますね。
Posted by: Yoshida at September 21, 2009 11:38 AMそうですか、咲いた後なのですね。
コスモスの花の裏っ側を見たことがなかったですが、こんなピンクの苞みたいなのがあるんですね。
コスモスはキク科なので、花びらの一枚みたいなのが一つの花（舌状花）です。
中央のおしべの塊みたいなのも一つ一つがそれぞれ一つの花（管状花）で、そのあとに一つずつ種が出来ます。黄色いめしべの先が大きくふたつに分かれているのですが、それがまだ残っていますね（下から２枚目）。
ありがとうございます、勉強になりました。管状花が何かＳＦっぽいですね。
Posted by: Yoshida at September 22, 2009 10:34 PMせっかくですからコメントをどうぞ