| 0 | PI 300178 | 'Hybrid No. 5' | Watsonia hybr. | Cape Province, South Africa | | | Historic | 1964 | COLLECTED | | | | | | | | 1678164 | PI 300178 |
| 1 | PI 300179 | Col. No. 712 | Watsonia hybr. | Cape Province, South Africa | | | Historic | 1964 | COLLECTED | | | | | | | | 1678165 | PI 300179 |
| 2 | PI 300180 | 'Hybrid No. 3' | Watsonia meriana (L.) Mill. | Cape Province, South Africa | | | Historic | 1964 | COLLECTED | | | | | | | | 1678166 | PI 300180 |
| 3 | PI 300181 | 'Hybrid No. 2' | Watsonia hybr. | Cape Province, South Africa | | | Historic | 1964 | COLLECTED | | | | | | | | 1678170 | PI 300181 |
| 4 | PI 300182 | Col. No. 715 | Watsonia aletroides (Burm. f.) Ker Gawl. | Cape Province, South Africa | | | Historic | 1964 | COLLECTED | | | | | | | | 1678171 | PI 300182 |
| 5 | PI 300183 | Col. No. 687 | Watsonia angusta Ker Gawl. | Cape Province, South Africa | | | Historic | 1964 | COLLECTED | | | | 903 | | | | 1678172 | PI 300183 |
| 6 | PI 300184 | Col. No. 708 | Watsonia humilis Mill. | Cape Province, South Africa | | | Historic | 1964 | COLLECTED | | | | | | | | 1678173 | PI 300184 |
| 7 | PI 300185 | Col. No. 719 | Watsonia borbonica (Pourr.) Goldblatt subsp. ardernei (Sander) Goldblatt | Cape Province, South Africa | | | Historic | 1964 | COLLECTED | | | | | | | | 1678174 | PI 300185 |
| 8 | PI 300186 | Col. No. 713 | Watsonia marginata (L. f.) Ker Gawl. | Cape Province, South Africa | | | Historic | 1964 | COLLECTED | | | | | | | | 1678175 | PI 300186 |
| 9 | PI 300187 | Col. No. 722 | Watsonia pillansii L. Bolus | Cape Province, South Africa | | | Historic | 1964 | COLLECTED | | | | | | | | 1678176 | PI 300187 |
| 10 | PI 300188 | Col. No. 717 | Watsonia borbonica (Pourr.) Goldblatt subsp. borbonica | Cape Province, South Africa | | | Historic | 1964 | COLLECTED | | | | | | | | 1678177 | PI 300188 |
| 11 | PI 300189 | Col. No. 720 | Watsonia fourcadei J. W. Mathews & L. Bolus | Cape Province, South Africa | | | Historic | 1964 | COLLECTED | | | | | | | | 1678178 | PI 300189 |
| 12 | PI 300190 | Col. No. 303 | Watsonia sp. | Transvaal, South Africa | | | Historic | 1964 | COLLECTED | | | | | | | | 1678242 | PI 300190 |
| 13 | PI 300191 | Col. No. 710 | Watsonia sp. | Cape Province, South Africa | | | Historic | 1964 | COLLECTED | | | | | | | | 1678244 | PI 300191 |
| 14 | PI 300192 | Col. No. 714 | Watsonia sp. | Cape Province, South Africa | | | Historic | 1964 | COLLECTED | | | | | | | | 1678245 | PI 300192 |
| 15 | PI 297382 | 'Pink 17-18' | Watsonia hybr. | South Africa | | | Historic | 1964 | COLLECTED | | | | | | | | 1682157 | PI 297382 |
| 16 | PI 297383 | 'Salmon 59-131-D' | Watsonia hybr. | Norway | | | Historic | 1964 | COLLECTED | | | | | | | | 1682158 | PI 297383 |
| 17 | PI 195270 | No. A-173 | Watsonia meriana (L.) Mill. | Cape Province, South Africa | | | Historic | 1951 | COLLECTED | 01/26/1951 | | | | | | | 1672529 | PI 195270 |
| 18 | PI 195271 | No. A-174 | Watsonia angusta Ker Gawl. | Cape Province, South Africa | | | Historic | 1951 | COLLECTED | 02/06/1951 | | | | | | | 1672530 | PI 195271 |
| 19 | PI 194620 | No. A-80 | Watsonia strubeniae L. Bolus | Transvaal, South Africa | | | Historic | 1951 | COLLECTED | 03/1951 | | | | | | | 1671498 | PI 194620 |
| 20 | PI 194621 | No. A-70 | Watsonia sp. | Transvaal, South Africa | | | Historic | 1951 | COLLECTED | 03/1951 | | | | | | | 1671499 | PI 194621 |
| 21 | PI 194622 | No. A-75 | Watsonia sp. | Eswatini | | | Historic | 1951 | COLLECTED | 03/1951 | | | | | | | 1671500 | PI 194622 |
| 22 | PI 194435 | No. A-49 | Watsonia sp. | Cape Province, South Africa | | | Historic | 1951 | COLLECTED | | | | | | | | 1671366 | PI 194435 |
| 23 | PI 194224 | No. A-31 | Watsonia sp. | Ethiopia | | | Historic | 1951 | COLLECTED | 02/06/1951 | | | | | | | 1671250 | PI 194224 |
| 24 | PI 194225 | No. A-32 | Watsonia meriana (L.) Mill. | Ethiopia | | | Historic | 1951 | COLLECTED | 02/06/1951 | | | | | | | 1671251 | PI 194225 |
| 25 | PI 194152 | No. A-25 | Watsonia meriana (L.) Mill. | Cape Province, South Africa | | | Historic | 1951 | COLLECTED | 02/1951 | | | | | | | 1671203 | PI 194152 |
| 26 | PI 194153 | No. A-23 | Watsonia tabularis J. W. Mathews & L. Bolus | Cape Province, South Africa | | | Historic | 1951 | COLLECTED | 02/1951 | | | | | | | 1671204 | PI 194153 |
| 27 | PI 194091 | No. A-16 | Watsonia angusta Ker Gawl. | Cape Province, South Africa | | | Historic | 1951 | COLLECTED | 01/1951 | | | | | | | 1671152 | PI 194091 |
| 28 | PI 194092 | No. A-18 | Watsonia angusta Ker Gawl. | Cape Province, South Africa | | | Historic | 1951 | COLLECTED | 01/1951 | | | | | | | 1671153 | PI 194092 |
| 29 | PI 194093 | No. A-19 | Watsonia angusta Ker Gawl. | Cape Province, South Africa | | | Historic | 1951 | COLLECTED | 01/1951 | | | | | | | 1671154 | PI 194093 |
| 30 | PI 152520 | No. 109 | Watsonia borbonica (Pourr.) Goldblatt subsp. ardernei (Sander) Goldblatt | South Africa | | | Historic | 1945 | COLLECTED | | | | | | | | 1890053 | PI 152520 |
| 31 | PI 152521 | No. 111 | Watsonia pillansii L. Bolus | South Africa | | | Historic | 1945 | COLLECTED | | | | | | | | 1890054 | PI 152521 |
| 32 | PI 152522 | No. 116 | Watsonia galpinii L. Bolus | South Africa | | | Historic | 1945 | COLLECTED | | | | | | | | 1890055 | PI 152522 |
| 33 | PI 152523 | No. 117 | Watsonia marginata (L. f.) Ker Gawl. | South Africa | | | Historic | 1945 | COLLECTED | | | | | | | | 1890056 | PI 152523 |
| 34 | PI 152524 | No. 118 | Watsonia meriana (L.) Mill. | South Africa | | | Historic | 1945 | COLLECTED | | | | | | | | 1890057 | PI 152524 |
| 35 | PI 152525 | No. 119 | Watsonia borbonica (Pourr.) Goldblatt subsp. borbonica | South Africa | | | Historic | 1945 | COLLECTED | | | | | | | | 1890058 | PI 152525 |
| 36 | PI 152526 | No. 122 | Watsonia sp. | South Africa | | | Historic | 1945 | COLLECTED | | | | | | | | 1890059 | PI 152526 |
| 37 | PI 152527 | No. 123 | Watsonia versfeldii J. W. Mathews & L. Bolus | South Africa | | | Historic | 1945 | COLLECTED | | | | | | | | 1890060 | PI 152527 |
| 38 | PI 152528 | 'No. 124' | Watsonia wilmaniae J. W. Mathews & L. Bolus | South Africa | | | Historic | 1945 | COLLECTED | | | | | | | | 1890061 | PI 152528 |
| 39 | PI 152529 | No. 125 | Watsonia sp. | South Africa | | | Historic | 1945 | COLLECTED | | | | | | | | 1890062 | PI 152529 |
| 40 | PI 142128 | No. 77 | Watsonia angusta Ker Gawl. | South Africa | | | Historic | 1941 | COLLECTED | | | | | | | | 1866907 | PI 142128 |
| 41 | PI 142129 | No. 80 | Watsonia pillansii L. Bolus | South Africa | | | Historic | 1941 | COLLECTED | | | | | | | | 1866908 | PI 142129 |
| 42 | PI 142130 | | Watsonia borbonica (Pourr.) Goldblatt subsp. ardernei (Sander) Goldblatt | South Africa | | | Historic | 1941 | COLLECTED | | | | | | | | 1866909 | PI 142130 |
| 43 | PI 116995 | | Watsonia densiflora Baker | South Africa | | | Historic | 1936 | COLLECTED | | | | | | | | 1826131 | PI 116995 |
| 44 | PI 66982 | 'Ardermii' | Watsonia sp. | Cape Province, South Africa | | | Historic | 1926 | COLLECTED | | | | | | | | 1719362 | PI 66982 |
| 45 | PI 61251 | | Watsonia borbonica (Pourr.) Goldblatt subsp. borbonica | Cape Province, South Africa | | | Historic | 1924 | COLLECTED | | | | | | | | 1662676 | PI 61251 |
| 46 | PI 61252 | | Watsonia sp. | Cape Province, South Africa | | | Historic | 1924 | COLLECTED | | | | | | | | 1662677 | PI 61252 |
| 47 | PI 57942 | | Watsonia watsonioides (Baker) Oberm. | Transvaal, South Africa | | | Historic | 1923 | COLLECTED | | | | | | | | 1658063 | PI 57942 |
| 48 | PI 48189 | | Watsonia sp. | Cape Province, South Africa | | | Historic | 1919 | COLLECTED | 08/23/1919 | | | | | | | 1613918 | PI 48189 |
| 49 | PI 28743 | | Watsonia sp. | Mauritius | | | Historic | 1910 | COLLECTED | | | | | | | | 1594635 | PI 28743 |
| 50 | PI 26192 | | Watsonia sp. | District of Columbia, United States | | | Historic | 1909 | COLLECTED | | | | | | | | 1523485 | PI 26192 |
| 51 | PI 21221 | | Watsonia densiflora Baker | Transvaal, South Africa | | | Historic | 1907 | COLLECTED | | | | | | | | 1578694 | PI 21221 |
| 52 | MIA 25204 | | Watsonia tabularis J. W. Mathews & L. Bolus | | | | Historic | 1978 | DONATED | 1978 | | | | | | | 1091087 | MIA 25204 |