The following is a list of the collections made by Johnson in species name order. The records are of species which occur in Angola (either as a native/naturalised species or as a cultivated species).
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| No | Species | Record date | Recorder(s) | Coll. | Det. | Conf. | Herbaria | Habitat | Location | Loc code | Outing code | Planted code | Country | QDS | Grid ref. | FZ Div | Alt. (m) | Notes | Lat | Long | Loc Acc Code |
| 116647 | Disperis reichenbachiana | 24 Feb 2022 | N Wightman B Bytebier SD Johnson |
N Wightman B Bytebier SD Johnson BB3686 | N Wightman B Bytebier | NU |
Escarpment miombo woodland | Kapishya Hot Springs Lodge, Shiwa N'gandu Distr., Muchinga Province | 118 | 0 | Zambia | 1131B1 | N | 1432 | Growing in leaf litter over granite boulders | 6 | |||||
| 116652 | Habenaria uhehensis | 21 Feb 2022 | N Wightman B Bytebier SD Johnson |
N Wightman B Bytebier SD Johnson BB3659 | N Wightman | NU |
Miombo woodland | Mutinondo Wilderness Lodge, Mpika Distr. Muchinga Province | 116 | 0 | Zambia | 1231A4 | N | 1487 | 6 | ||||||
| 116984 | Orthochilus nuttii | 27 Feb 2022 | N Wightman B Bytebier SD Johnson |
N Wightman B Bytebier SD Johnson BB3706 | N Wightman | NU |
Lightly wooded seepage dambo grassland | Saise Valley, Kalambo Farm, Mbala Distr., Northern Province | 0 | Zambia | 0931A2 | N | 1598 | 6 | |||||||
| 116985 | Pachycarpus bisacculatus | 27 Feb 2022 | N Wightman B Bytebier SD Johnson |
N Wightman B Bytebier SD Johnson BB3709 | N Wightman | NU |
Lightly wooded seepage dambo grassland | Saise Valley, Kalambo Farm, Mbala Distr., Northern Province | 0 | Zambia | 0931A2 | N | 1591 | -9.068650 | 31.480712 | 6 | |||||
| 116986 | Pachycarpus lineolatus | 20 Feb 2022 | N Wightman B Bytebier SD Johnson |
N Wightman B Bytebier SD Johnson BB3646 | L Merrett | NU |
Miombo woodland | Kalonde, Mpika Distr., Muchinga Province | 0 | Zambia | 1231A3 | N | 1512 | -12.389122 | 31.136466 | 6 | |||||
| 117004 | Trachyandra arvensis | 28 Feb 2022 | N Wightman B Bytebier SD Johnson |
N Wightman B Bytebier SD Johnson NCW754a | N Wightman | UZL NDO |
Sand dune | Lake Bangweulu, Samfya Distr., Luapula Province | 112 | 0 | Zambia | 1129B3 | N | 1185 | Growing on upper reached of sand dune among Crinum papilllosum and Lapeirousia caudata | 6 |