Taxonomy of the Polygonum douglasii (Polygonaceae ... - WLU
Taxonomy of the Polygonum douglasii (Polygonaceae ... - WLU
Taxonomy of the Polygonum douglasii (Polygonaceae ... - WLU
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8 BRITTONIA<br />
[VOL. 57<br />
FIG. 5. Epicuticular wax sculpture pattern <strong>of</strong> perianth lobes. A. <strong>Polygonum</strong> austiniae. B. P. utahense. C. P.<br />
engelmannii. D. P. gabrielae. E. P. minimum. F. P. nuttallii. Scale bars � 20 �m.