The ornamental design for a wallbase with roundedtop and groove, as shown and described.
FIG. 1 is a perspective view of the wall base with rounded top and groove, according to the invention;
FIG. 2 is a top end view of the wall base with rounded top and groove shown in FIG. 1;
FIG. 3 is a front view of the wall base with rounded top and groove shown in FIG. 1;
FIG. 4 is a side view of the wall base with rounded top and groove shown in FIG. 1;
FIG. 5 is a rear view of the wall base with rounded top and groove shown in FIG. 1;
FIG. 6 is a side view of the wall base with rounded top and groove shown in FIG. 1, shown from the opposite side of that shown in FIG. 4; and,
FIG. 7 is a bottom end view of the wall base with rounded top and groove shown in FIG. 1.
The surface shading shown in all figures is for the purpose of depicting contour and forms no part of the claimed design. The wall base with rounded top and groove is shown with a symbolic break in its length drawn in zigzag lines within the bracket. Any portion of the article between the break lines forms no part of the claimed design.