Flowering plants were making their first appearance, but were still a rarity.

有花植物初现，但是依然少见。

《柯林斯英汉双解大词典》

As a consequence, we have an emerging fossil record of flowering plants that includes many extinct taxa and would have delighted Darwin.

因此，我们有一个正在形成的有花植物的化石记录，包括许多灭绝类群，达尔文会感到高兴的。

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Studies on the closure behavior of the touch-sensitive stigmas in flowering plants are one of the hotspots in pollination ecology and evolutionary biology.

有花植物触敏柱头的闭合行为一直是传粉生态学和进化生物学研究的热点问题之一。

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