  An explicit Robinson--Trautman solution with minimally coupled free scalar
field was derived and analyzed recently. It was shown that this solution
possesses a curvature singularity which is initially naked but later enveloped
by a horizon. However, this study concentrated on the general branch of the
solution where all free constants are nonzero. Interesting special cases arise
when some of the parameters are set to zero. In most of these cases the scalar
field is still present. One of the cases is a static solution which represents
a parametric limit of the Janis--Newman--Winicour scalar field spacetime.
Additionally, we provide a calculation of the Bondi mass which clarifies the
interpretation of the general solution. Finally, by a complex rotation of a
parameter describing the strength of the scalar field we obtain a dynamical
wormhole solution.
