R.W.J.M. van der Ham
About
In The Last Decade
R.W.J.M. van der Ham
69 papers receiving 766 citations
Peers
Comparison fields: 5 of 49
- Ecology, Evolution, Behavior and Systematics 646
- Molecular Biology 463
- Plant Science 214
- Paleontology 111
- Oceanography 58
Countries citing papers authored by R.W.J.M. van der Ham
This map shows the geographic impact of R.W.J.M. van der Ham's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by R.W.J.M. van der Ham with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites R.W.J.M. van der Ham more than expected).
Fields of papers citing papers by R.W.J.M. van der Ham
This network shows the impact of papers produced by R.W.J.M. van der Ham. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by R.W.J.M. van der Ham. The network helps show where R.W.J.M. van der Ham may publish in the future.
Co-authorship network of co-authors of R.W.J.M. van der Ham
This figure shows the co-authorship network connecting the top 25 collaborators of R.W.J.M. van der Ham. A scholar is included among the top collaborators of R.W.J.M. van der Ham based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with R.W.J.M. van der Ham. R.W.J.M. van der Ham is excluded from the visualization to improve readability, since they are connected to all nodes in the network.
All Works
| # | Work | Indexed citations |
|---|---|---|
| 1 | CALLITRICHE NANA (CALLITRICHACEAE), A NEW SPECIES FROM JAVA, INDONESIA | 1 |
| 2 | 24 | |
| 3 | 40 | |
| 4 | 7 | |
| 5 | Mosbloempje (Crassula tillaea Lester-Garland) in het Nederlandse kustgebied | 1 |
| 6 | 16 | |
| 7 | Rare conifers from the type area of the Maastrichtian (Upper Cretaceous, southeast Netherlands) | 10 |
| 8 | Pollination biology of saw palmetto (Serenoa repens) in Southwestern Florida | 16 |
| 9 | Notes on the genus Amorphophallus (Araceae) — 11 New and obsolete species from East Malaysia and continental Southeast Asia | 4 |
| 10 | Zeeegels uit het vuursteeneluvium van Zuid-Limburg, de Voerstreek en het Aachener Wald | 1 |
| 11 | 4 | |
| 12 | Morphology and evolution of Arytera pollen (Sapindaceae-Cupanieae) | 2 |
| 13 | Cnesmocarpon (gen. nov.), Jagera, and Trigonachras (Sapindaceae—Cupanieae): Phylogeny and systematics | 9 |
| 14 | Pollen morphology of the Stemonaceae | 16 |
| 15 | Evolutionary trends in the morphology and harmomegathy of the pollen of the genus Guioa (Sapindaceae-Cupanieae) | 4 |
| 16 | Echinoids from the Early Palaeocene (Danian) of the Maastricht area (NE Belgium, SE Netherlands): preliminary results | 5 |
| 17 | Gifsla (Lactuca virosa L.) en kompassla (Lactuca serriola L.) in Nederland | 4 |
| 18 | Pollenmorphology of the genus Mischocarpus (Sapindaceae) | 6 |
| 19 | A revision of Mischocarpus (Sapindaceae) | 2 |
| 20 | Notes on Arytera (Sapindaceae) | 1 |
Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.