Table 1.
Summary statistics for regions modeled
| Region | Current total, % | Predicted total, % | Ratio | Missing species, % | Rank change |
| North and Central America, Caribbean | |||||
| North America | 2.47 | 2.10 | 1.09 | 0.77 | ↓ 1 |
| Cuba | 1.53 | 1.20 | 1.00 | 0.02 | ↓ 5 |
| Caribbean islands other than Cuba | 1.90 | 1.74 | 1.17 | 1.14 | ↓ 2 |
| Mexico to Panama | 9.00 | 8.24 | 1.17 | 5.50 | ↓ 1 |
| South America | |||||
| Colombia* | 3.62 | 4.15 | 1.46 | 6.05 | ↑ 2 |
| Venezuela | 1.90 | 1.78 | 1.20 | 1.33 | → 0 |
| Guyanas | 0.57 | 0.52 | 1.18 | 0.36 | → 0 |
| Ecuador to Peru* | 7.22 | 11.94 | 2.11 | 28.92 | ↑ 1 |
| Bolivia | 1.26 | 1.19 | 1.21 | 0.94 | → 0 |
| Brazil, north | 0.94 | 0.85 | 1.16 | 0.54 | ↓ 2 |
| Brazil, northeast* | 1.29 | 1.65 | 1.63 | 2.94 | ↑ 6 |
| Brazil, south | 0.72 | 0.62 | 1.10 | 0.25 | → 0 |
| Brazil, west-central | 0.72 | 0.65 | 1.15 | 0.39 | ↑ 2 |
| Brazil, southeast | 4.42 | 3.61 | 1.04 | 0.68 | ↓ 1 |
| Paraguay, Argentina, Uruguay, Chile* | 1.69 | 2.50 | 1.89 | 5.40 | ↑ 7 |
| Temperate Eurasia | |||||
| Palearctic: Iceland to Western Siberia, south to Mongolia* | 0.81 | 1.09 | 1.72 | 2.11 | ↑ 10 |
| European Mediterranean | 1.60 | 1.59 | 1.27 | 1.56 | → 0 |
| North Africa and Middle East Mediterranean | 0.89 | 0.90 | 1.29 | 0.92 | ↑ 1 |
| Turkey | 0.82 | 0.74 | 1.15 | 0.44 | ↓ 2 |
| Caucasus | 0.34 | 0.30 | 1.13 | 0.16 | → 0 |
| Iraq, Iran, Afghanistan, Pakistan | 0.73 | 0.66 | 1.15 | 0.41 | ↑ 1 |
| Turkmenistan and Kazakhstan east through Tibet to Xinjiang, China | 1.16 | 1.05 | 1.16 | 0.68 | → 0 |
| China, south-central | 1.94 | 1.98 | 1.30 | 2.13 | ↓ 1 |
| China, southeast | 1.50 | 1.47 | 1.25 | 1.37 | → 0 |
| North-central China, Japan, Korea | 0.77 | 0.65 | 1.08 | 0.21 | ↓ 2 |
| Africa | |||||
| North East (Burundi, Ruanda, Uganda, Kenya, Somalia, Ethiopia, Eritrea, Sudan, Djibouti) | 1.21 | 1.13 | 1.19 | 0.83 | ↑ 2 |
| West Africa: Senegal to Benin* | 0.46 | 0.47 | 1.31 | 0.52 | → 0 |
| West and Central Africa: Nigeria to Central African Republic and Congo | 1.27 | 1.08 | 1.08 | 0.37 | ↓ 6 |
| Democratic Republic of Congo | 0.73 | 0.67 | 1.18 | 0.47 | ↑ 4 |
| Tanzania* | 0.79 | 1.08 | 1.76 | 2.14 | ↑ 11 |
| Angola, Malawi, Mozambique, Zambia, Zimbabwe* | 1.16 | 1.25 | 1.37 | 1.55 | ↑ 7 |
| Botswana and Namibia southward* | 5.47 | 7.76 | 1.81 | 15.96 | ↑ 2 |
| Madagascar | 4.21 | 3.39 | 1.03 | 0.45 | ↓ 1 |
| Tropical Mainland Asia | |||||
| Assam, Bangladesh, Himalayas, Burma, Nepal | 1.46 | 1.26 | 1.11 | 0.55 | → 0 |
| Indian, Sri Lanka | 1.84 | 1.51 | 1.05 | 0.31 | ↓ 3 |
| Thailand | 0.96 | 0.78 | 1.03 | 0.12 | ↓ 5 |
| Mainland Malaya | 1.23 | 0.99 | 1.02 | 0.10 | ↓ 5 |
| Cambodia, Laos | 0.39 | 0.33 | 1.07 | 0.10 | → 0 |
| Vietnam | 1.15 | 1.11 | 1.24 | 0.98 | ↑ 5 |
| Tropical Asia Islands | |||||
| Sumatra | 1.25 | 0.98 | 1.00 | 0.00 | ↓ 7 |
| Java, lesser Sundas | 1.21 | 0.96 | 1.01 | 0.03 | ↓ 5 |
| Borneo | 3.30 | 2.65 | 1.03 | 0.31 | → 0 |
| Sulawesi | 0.74 | 0.61 | 1.05 | 0.14 | ↓ 4 |
| Bismarck, Caroline, Marianas, Solomon Islands | 0.80 | 0.67 | 1.06 | 0.18 | ↓ 2 |
| Philippines | 2.79 | 2.18 | 1.00 | 0.00 | ↓ 1 |
| New Caledonia | 1.50 | 1.29 | 1.10 | 0.52 | → 0 |
| Fiji, Samoa, Society Islands, Tonga, Vanuatu | 0.96 | 0.87 | 1.16 | 0.57 | ↓ 2 |
| Australasia | |||||
| Australia* | 7.09 | 7.29 | 1.31 | 8.02 | ↓ 1 |
| New Guinea | 5.74 | 4.52 | 1.01 | 0.14 | ↓ 1 |
| Miscellaneous oceanic Islands, worldwide | 2.45 | 2.00 | 1.05 | 0.40 | ↓ 1 |
| Total | 100.00 | 100.00 | — | 100.00 | — |
| Sample size | 78,799 | 100,719 | — | 21,920 | — |
| Species occurring across multiple regions | 29,917 | 30,784 | 1.03 | 867 | NA |
Regions, fractions of currently known species from a sample of taxonomically revised families of flowering plants, and predictions of those fractions once missing species are included, the ratio of predicted to currently known species numbers, the fractions of missing species in different regions, and the change in rank order of diversity are shown. The main differences are discussed in the text. A full version of the table, which shows raw species numbers, along with parameter estimates and maximum-likelihood CIs on all model parameters, is included as Dataset S1.
*Regions with high ratios, meaning at least 30% of the species remaining to be discovered.