Hummelinck 1938: – Succulenta (Netherlands) 20
| Authorship | Hummelinck |
| Date published | 1938 |
| Volume | 20 |
| In journal | Succulenta (Netherlands) |
| Authorship | Hummelinck |
| Date published | 1938 |
| Volume | 20 |
| In journal | Succulenta (Netherlands) |