Evolvulus arenarius Sepals

E. arenarius sepals [Roosevelt Co., NM]. Only the outmost sepals (4 & 5), marked here, are relevant. Sepal 2, which is centered on the left, and is partially covered by 4 & 5, may appear ovate, but would not necessarily contrast with an E. nuttallianus sepal 2. Only sepal 5 on the right shows the full sepal width. Sepal 4 on the left, although not fully shown and would be difficult to measure accurately, is clearly ovate.

Evolvulus arenarius Sepals

by Bob Harms email-here

E. arenarius, Roosevelt Co., NM, Strahan 473	E. arenarius, Winkler Co., McCullough 320

Contrast the above ovate sepals with the lanceolate sepals of E. nuttallianus shown below, both from areas where E. arenarius has been collected. In both images the diagnostic outer sepal is fully visible.

E. nuttallianus, Andrews Co., Bio Class s.n.	E. nuttallianus, Roosevelt Co., NM, Secor 14

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