Paliurus
PALIURUS ACULEATUS (_syn P. australis_).--Christ's Thorn, or Garden
Thorn. Mediterranean region, 1596. A densely-branched, spiny shrub, with
small leaves, and not very showy, yellowish-green flowers. It grows and
flowers freely enough in light, peaty earth, but is not very hardy, the
tips of the branches being usually killed back should the winter be at
all severe.