CLOUDBERRY  , Rubus Chamaemorus, a

low-growing creeping herbaceous plant, with stem not prickly, and with simple obtusely lobed leaves and 'solitary white flowers, resembling those of the blackberry, but larger—one inch across,—and with stamens and pistils on different plants . The orange-yellow fruit is about half an inch long and consists of a few large drupes with a pleasant flavour . The plant occurs in the mountainous parts of Great Britain, and is widely distributed through the more northerly portions of both hemispheres . In northern Denmark and Sweden the fruit is gathered in large quantities and sold in the markets . CLOUD-BURST, a sudden and violent storm of rain . • The name probably originated from the idea that the clouds were solid masses full of water that occasionally burst with disastrous results . A whirlwind passing over the sea sometimes carries the water upwards in a whirling vortex; passing over the land its motion is checked and a deluge of water falls . Occasionally on high lands far from the sea violent storms occur, with rain that seems to descend in sheets, sweeping away bridges and culverts and tearing up roads and streets, being due to great and rapid condensation and vortical whirling of the resulting heavy clouds (see METEOROLOGY) .