The following is a list of the collections made by Van de Waal in species name order. The records are of species which occur in Malawi (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 |
| 94376 | Andropogon eucomus subsp. eucomus | 1 Dec 1974 | B Van de Waal |
B Van de Waal s.n.-A | WIND |
Caprivi: Katima Mulilo. | 0 | Namibia (Caprivi Strip) | 1724C4 | 0 | Graminoid; Notes: Permanent Salvinia-mat. | -17.875000 | 24.375000 | 4 | |||||||
| 94407 | Fuirena pubescens | 1 Dec 1974 | B Van de Waal |
B Van de Waal s.n.-C | WIND |
Caprivi: Liambezi lake. | 0 | Namibia (Caprivi Strip) | 1724C4 | 0 | Notes: On permanent Salvinia mat. | -17.875000 | 24.375000 | 4 | |||||||
| 95653 | Limnophila indica | 25 Nov 1974 | B Van de Waal |
B Van de Waal 29 | JWH Giess | WIND |
Caprivi: Hunters Africa: Chobe Camp. (Siambisso) Linyati River. | 0 | Namibia (Caprivi Strip) | 1823B3 | 0 | -18.375000 | 23.625000 | 2 | |||||||
| 93778 | Limnophila indica | 5 Dec 1974 | B Van de Waal |
B Van de Waal 3 | PRE WIND |
Caprivi: (Singalamwe) Kwando: Kongola: side of the stream. | 0 | Namibia (Caprivi Strip) | 1723C4 | 0 | -17.875000 | 23.375000 | 5 | ||||||||
| 93779 | Ludwigia adscendens subsp. diffusa | 6 Dec 1974 | B Van de Waal |
B Van de Waal 1 | C Mannheimer | WIND |
Caprivi: Singalamwe, Kwando. Kongola: bank of stream. | 0 | Namibia (Caprivi Strip) | 1723C4 | 0 | -17.875000 | 23.375000 | 5 | |||||||
| 94428 | Ludwigia adscendens subsp. diffusa | 25 Oct 1974 | B Van de Waal |
B Van de Waal 54 | C Mannheimer | WIND |
Caprivi: Singalamwe, Liambezi. | 0 | Namibia (Caprivi Strip) | 1724C4 | 0 | -17.875000 | 24.375000 | 4 | |||||||
| 94429 | Ludwigia leptocarpa | 1 Dec 1974 | B Van de Waal |
B Van de Waal 1 | WIND |
Caprivi: Katima Mulilo: Liambezi Lake. On permanent Salvinia mat. | 0 | Namibia (Caprivi Strip) | 1724C4 | 0 | -17.875000 | 24.375000 | 4 | ||||||||
| 94434 | Myriophyllum spicatum | 20 Oct 1973 | B Van de Waal |
B Van de Waal 46 | JWH Giess | WIND |
Caprivi: Eastern Caprivi: Kongola. | 0 | Namibia (Caprivi Strip) | 1724C4 | 0 | -17.875000 | 24.375000 | 4 | |||||||
| 95655 | Myriophyllum spicatum | 25 Nov 1974 | B Van de Waal |
B Van de Waal 25 | WIND |
Caprivi: Hunters Africa: Chobe Camp. | 0 | Namibia (Caprivi Strip) | 1823B3 | 0 | -18.375000 | 23.625000 | 2 | ||||||||
| 93785 | Myriophyllum spicatum | 6 Dec 1974 | B Van de Waal |
B Van de Waal 14 | JWH Giess | WIND |
Caprivi: Kongola. | 0 | Namibia (Caprivi Strip) | 1723C4 | 0 | -17.875000 | 23.375000 | 5 | |||||||
| 94349 | Najas horrida | 8 Nov 1974 | B Van de Waal |
B Van de Waal 7 | ES Klaassen | WIND |
Caprivi: Katima Mulilo. Chinchimane river, on side of stream. | 0 | Namibia (Caprivi Strip) | 1724C3 | 0 | -17.875000 | 24.125000 | 4 | |||||||
| 93788 | Nymphaea nouchali var. caerulea | 8 Nov 1974 | B Van de Waal |
B Van de Waal 38 | NV Clarke | WIND |
Caprivi | 0 | Namibia (Caprivi Strip) | 1723C4 | 0 | Notes: Leaves round with small flowers. | -17.875000 | 23.375000 | 5 | ||||||
| 94352 | Ottelia ulvifolia subsp. ulvifolia | 1 Feb 1974 | B Van de Waal |
B Van de Waal 47 | JWH Giess | WIND |
Caprivi: Katima Mulilo, Chinchimane stream. | 0 | Namibia (Caprivi Strip) | 1724C3 | 0 | Notes: Fast running water, 2 m deep. | -17.875000 | 24.125000 | 4 | ||||||
| 94439 | Ottelia ulvifolia subsp. ulvifolia | 1 Mar 1975 | B Van de Waal |
B Van de Waal 45 | JWH Giess | WIND |
Caprivi: Katima Mulilo. Temporary hole near Liambezi lake (Bukalo). | 0 | Namibia (Caprivi Strip) | 1724C4 | 0 | -17.875000 | 24.375000 | 4 | |||||||
| 95600 | Ottelia ulvifolia subsp. ulvifolia | 8 Nov 1974 | B Van de Waal |
B Van de Waal 31 | JWH Giess | WIND |
Caprivi: Siambisso. Lianshulu. Side arm of Kwando. Water shallow-flowing. | 0 | Namibia (Caprivi Strip) | 1823A2 | 0 | -18.125000 | 23.375000 | 2 | |||||||
| 95659 | Ottelia ulvifolia subsp. ulvifolia | 25 Nov 1974 | B Van de Waal |
B Van de Waal 27 | WIND |
Caprivi: Siambiso. Chobe Camp: Hunters Africa. | 0 | Namibia (Caprivi Strip) | 1823B3 | 0 | -18.375000 | 23.625000 | 2 | ||||||||
| 94443 | Persicaria decipiens | 1 Dec 1974 | B Van de Waal |
B Van de Waal s.n.-G | WIND |
Caprivi: Katima Mulilo District: Salvinia mat. | 0 | Namibia (Caprivi Strip) | 1724C4 | 0 | Notes: Corr. nom.: S. Rgheimer 5.2007. | -17.875000 | 24.375000 | 4 | |||||||
| 94446 | Potamogeton schweinfurthii | 1 Nov 1974 | B Van de Waal |
B Van de Waal 44 | JWH Giess | WIND |
Very rare. | Caprivi, Katima Mulilo: Liambezi Lake: 30 cm at bank. | 0 | Namibia (Caprivi Strip) | 1724C4 | 0 | -17.875000 | 24.375000 | 4 | ||||||
| 94461 | Utricularia inflexa | 20 Oct 1973 | B Van de Waal |
B Van de Waal 46 | JWH Giess | WIND |
Caprivi: Singalamwe: Kongola, east Caprivi. | 0 | Namibia (Caprivi Strip) | 1724C4 | 0 | -17.875000 | 24.375000 | 4 | |||||||
| 94770 | Utricularia inflexa | 1 Feb 1974 | B Van de Waal |
B Van de Waal 48 | WIND |
Caprivi: Katima Mulilo: Chinchimane stream; clear, deep, back water. | 0 | Namibia (Caprivi Strip) | 1724D4 | 0 | -17.875000 | 24.875000 | 4 |