| Number | Name | Date | Kind |
|---|---|---|---|
| D112179 | Reineck et al. | Nov 1938 | |
| D291041 | Grange | Jul 1987 | |
| D291522 | Daenen et al. | Aug 1987 | |
| D296969 | Carlson | Aug 1988 | |
| D327609 | Carlson | Jul 1992 | |
| D353080 | Cantereels et al. | Dec 1994 | |
| D358533 | Cousins et al. | May 1995 | |
| D359202 | Cousins et al. | Jun 1995 | |
| D360106 | Sintchak | Jul 1995 | |
| 3170875 | Swett | Feb 1965 |