  We investigate collective spin excitations of graphene electrons with
short-ranged interactions and subject to the external Zeeman magnetic field. We
find that in addition to the familiar Silin spin wave, a collective spin-flip
excitation that reduces to the uniform precession when the wave's momentum
approaches zero, the magnetized graphene supports another collective mode
visible in the transverse spin susceptibility: a collective spin-current mode.
Unlike the Silin wave, this mode is not dictated by the spin-rotational
symmetry but rather owns its existence to the pseudo-spin structure of the
graphene lattice. We find the new collective excitation to become sharply
defined in a finite interval of wave's momenta, the range of which is
determined by the interaction and the magnetization.
