Angiosperms - Floral structures
> Aromatic Petals
Updated on 22/04/2016
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A microscopic view (x30) of the aromatic petals of Ruta graveolens (Common name: rue / common rue / herb-of-grace). The "aromatic" property of the petals comes from the translucent glands that can secrete volatile aroma-compounds. In this particular species, the translucent glands appear as pale-yellowish little dots on the petals. Fun Fact: Although it is said to be "aromatic", some animals actually find the smell of Ruta graveolens deterring. For example, cats generally dislike it. There were also records of people using it for home gardens to repel snakes and insects (but the effectiveness is unknown).
SC295, Science Centre South Block, CUHK
Thanks for your input. Clearly labelled photos and informative description!
petal , sepal , pileus , suspensor , stipe , Labellum , columella , sporangium , pistil , zygosporangium
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