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Comparative Wood Anatomy of Perennial Shoots of Potentilla (Rosaceae)

In: IAWA Journal
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The wood anatomy of perennial shoots of 26 Potentilla speeies was studied using light and scanning eleetron mieroseopy. Secondary xylem of different growth forms was compared. The wood anatomy of perennial shoots of Potentilla speeies with growth forms intermediate between shrubs and herbs (except P. biflora and P. palustris) is similar to the wood anatomy of shrubs. Wood anatomy ofherbaeeous speeies is diverse, and some features have systematie signifieanee. Parenehymati sation and the anatomie al ehanges eorrelated with this proeess appear to be a general trend in the strueture of secondary xylem in rhizomes of herbaeeous Potentilla. This trend may aiso be eommon in rhizome s of other herbaeeous plants, and further studies are required to investigate this.

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