Table 1.
The centres of diversity for Ceropegia, their terminal taxon richness (including species, subspecies and natural varieties) and the sample sizes for this study
| No. of described taxa in the region | No. of Ceropegia taxa with pollinator/flower visitor data | Percentage of described taxa | No. of accessions* for those taxa | |
|---|---|---|---|---|
| East Africa | 62 | 30 | 48 | 67 |
| Asia | 60 | 3 | 5 | 5 |
| Southern Africa | 52 | 16 | 31 | 25 |
| West Africa | 25 | 11 | 44 | 14 |
| Madagascar | 20 | 4 | 20 | 5 |
| Arabian Peninsula | 13 | 8 | 62 | 24 |
Pollinator/flower visitor totals exclude data from cultivated plants. In the second column, 20 taxa have been counted more than once because they occur in more than one biogeographic region. Regions are ranked in order of their Ceropegia taxon richness.
*‘Accessions’ refers to records of Ceropegia flowers at a particular locality that have been found to contain insects.