90-1The gain in petal width was smallest near the midvein and in- creased toward the petal margins...
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90-1The gain in petal width was smallest near the midvein and in- creased toward the petal margins (Fig. 2B). During expansion, the length to width ratio of the petals remained constant
![Catalog PETAL[1]](https://img.pdfslide.net/doc/110x75/56d6c0a91a28ab30169b4c8a/catalog-petal1.jpg)
