摘要：During 1998, research was done into the flora of and certain ecological factors (temperature and relative humidity) in the entrance parts of three caves on the island of Rab. The caves lie in different vegetation zones and at different altitudes. In all, 32 kinds of plant were recorded: 29 spermatophytes and 3 pteridophytes. In comparison with research carried out in two of the caves at the beginning of the century, a change had occurred in the floristic composition. Particularly noteworthy is the reduction in the number of fern species in the interior of the cave.
关键词：speleobotany; the island of Rab; ecological factors; flora; cave
