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Summary Seine, R. & Barthlott, W.: Some proposals on the infrageneric classification of Drosera L. – Taxon 43: 583‐589. 1994. – ISSN 0040‐0262. An infrageneric classification of Drosera L. is proposed on the basis of morphological, anatomical, palynological and cytotaxonomical data. A new subgenus, D. subg. Regiae (monotypic, D. regia) is described. D. subg. Ptycnostigma and subg. Rorella are united with subg. Drosera. De Buhr's earlier treatment of D. subg. Ergaleium is adopted. A key to the subgenera and sections of Drosera is provided.

Inselbergs are rounded rock outcrops, usually of Precambrian age, with sparse vegetation cover. The vegetation of inselbergs in Zimbabwe is described for the first time, based upon data sampled from 53 localities. Inselbergs support a range of habitats whose vegetation is described. Data on species richness and floristic composition of the inselberg flora (549 vascular plant, 25 bryophyte and 136 lichen species) are presented. Phytogeography and diversity of inselberg vegetation are discussed. First records for Zimbabwe are reported in lichens and vascular plants.

Some hepatics, especially epiphytic species, possess lobules or water sacs on their leaves that appear to function as stores. In Pleurozia and Colura, these water sacs have very complex openings that can be closed by a movable lid, which prompted the hypothesis that these water sacs could function as a trap‐like mechanism for small animals, which are occasionally found in these organs. Experiments revealed that protozoa (ciliata), which feed on bacteria on the surface of the plants, are trapped in the water sacs. We propose that these trap mechanisms function for zoophagy, but there is no clear evidence that the protozoa are specifically attracted to the hepatic.

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