E. arenarius
trichomes, scraped loose & photographed at 40x [Winkler Co.].
Evolvulus arenarius
Vestiture
by Bob Harms
For trichome features see:
Evolvulus
Trichome Morphology as Differentia
Evolvulus
Trichome SEM Scans
The general hair pattern of
E. arenarius
vestiture differs in comparison with other
Evolvulus
taxa in the Trans-Pecos region:
hairs are more dense on the upper surface.
E. arenarius
(Winkler Co.) pubescence detail. L: lower surface; U: upper surface.
the hairs are relatively sparse, facilitating observation of individual trichomes; also noteworthy is their parallel alignment;
Hair density comparison along 1 mm (black line scale); 1:
E. arenarius
(Winkler Co.), 2:
E.nuttallianus
(Roosevelt Co.);
L: lower surface, U: upper surface.
Plant Resources Center Home Page
—
Flora of Texas
—
Evolvulus
