  We point out that by modifying the setup of a recent experiment that
generates a Dirac string, one can create a quasi 2D spinor Bose condensate on a
cylindrical surface with a synthetic magnetic field pointing radially outward
from the cylindrical surface. The synthetic magnetic field takes the form of
the Landau gauge. It is generated by the Berry's phase of a spin texture,
frozen by an external quadrupolar magnetic field. Unlike in the planar case,
there are two types of vortices (called A and B) with the same vorticity. The
ground state for $5\le S\le 9$ consists of a row of alternating AB vortices
lying at the equatorial circle of the cylinder. For higher values of $S$, the A
and B vortices split into two rows and are displaced from each other along the
cylindrical axis $z$. The fact that many properties of a BEC are altered in a
cylindrical surface implies many rich phenomena will emerge for ground states
in curved surfaces.
