| Entry | Volume | Pages |
|---|---|---|
| Origanum amanum | 18 | 359A.M. |
| Origanum amanum | 19 | 52, 53P |
| Origanum amanum | 25 | 73, 348 |
| Origanum amanum | 26 | 84, 170 |
| Origanum amanum | 28 | 70, 98 |
| Origanum amanum | 29 | 152, R 106, R 165 |
| Origanum amanum | 30 | 100 |
| Origanum amanum | 34 | 199P |
| Origanum amanum | 39 | 290P, 295 |
| Origanum amanum | 42 | 268 |
| Origanum amanum | 44 | 297 |
| Origanum amanum | 46 | 317 |
| Origanum amanum | 47 | 256 |
| Origanum amanum | 56 | 341F.C.C.* |
| Origanum amanum | 61 | 112, 372 |
| Origanum amanum | 62 | 357 |
| Origanum amanum | 63 | 2, 25 |
| Origanum amanum | 71 | 248 |
| Origanum amanum | 75 | 155C |
| Origanum 'Barbara Tingey' | 49 | 336A.M. |
| Origanum 'Barbara Tingey' | 71 | 249C |
| Origanum 'Barbara Tingey' | 75 | 154C |
| Origanum 'Birch Farm' | 51 | 288P, 290A.M.* |
| Origanum 'Buckland' | 69 | 97 |
| Origanum calcaratum | 61 | 387 |
| Origanum dictamnus | 11 | 54 |
| Origanum dictamnus | 25 | 107 |
| Origanum dictamnus | 26 | 84 |
| Origanum dictamnus | 28 | 98 |
| Origanum dictamnus | 29 | R 61 |
| Origanum dictamnus | 34 | 199P |
| Origanum dictamnus | 40 | 195 |
| Origanum dictamnus | 47 | 158, 258P, 259 |
| Origanum dictamnus | 48 | 293A.M. |
| Origanum dictamnus | 49 | 278 |
| Origanum dictamnus | 54 | 167 |
| Origanum dictamnus | 56 | 51 |
| Origanum dictamnus | 60 | 451 |
| Origanum dictamnus | 61 | 387 |
| Origanum dictamnus | 71 | 235 |
| Origanum dictamnus | 74 | 428C |
| Origanum dictamnus | 78 | 103 |
| Origanum x hybridum | 26 | 84 |
| Origanum x hybridum | 28 | 98 |
| Origanum x hybridum | 47 | 258P, 259 |
| Origanum x hybridum | 50 | 79 |
| Origanum 'Kent Beauty' | 51 | 296A.M. |
| Origanum 'Kent Beauty' | 74 | 428 |
| Origanum laevigatum | 22 | 339P.C. |
| Origanum laevigatum | 29 | R 107 |
| Origanum majorana | 34 | 194P, 203 |
| Origanum microphyllum | 56 | 48 |
| Origanum microphyllum | 59 | 111 |
| Origanum onites | 34 | 200P |
| Origanum pulchrum | 20 | 348A.M. |
| Origanum pulchrum | 23 | 200 |
| Origanum pulchrum | 26 | 84 |
| Origanum pulchrum | 34 | 200P |
| Origanum rotundifolium | 40 | 187, 324A.M., 328P |
| Origanum rotundifolium | 47 | 48 |
| Origanum rotundifolium | 59 | 111 |
| Origanum rotundifolium | 62 | 405 |
| Origanum rotundifolium | 64 | 111C, 413F.C.C. |
| Origanum rotundifolium | 66 | 221 |
| Origanum rotundifolium | 71 | 248 |
| Origanum rotundifolium | 78 | 217C |
| Origanum scabrum var. pulchrum | 74 | 428 |
| Origanum sp.CMW 3844 | 37 | 247 |
| Origanum spp. | 34 | 198 |
| Origanum syriacum var. bevanii | 65 | 92 |
| Origanum syriacum dubium | 20 | 230 |
| Origanum tournefortii | 17 | 225 |
| Origanum tournefortii | 21 | 118 |
| Origanum tournefortii | 28 | 98 |
| Origanum tournefortii | 47 | 256 |
| Origanum tournefortii x rotundifolia | 47 | 323 |
| Origanum vulgare | 2 | 232 |
| Origanum vulgare | 65 | 469 |
| Origanum vulgare | 70 | 231 |
| Origanum vulgare | 78 | 374 |
| Origanum vulgare 'Aureum' | 31 | 291 |
| Origanum vulgare 'Aureum' | 32 | 208 |
| Origanum vulgare 'Aureum' | 33 | 322 |
| Origanum vulgare 'Aureum' | 36 | 79 |
| Origanum vulgare 'Aureum' | 63 | 357 |