The following is a list of the collections made by Mary Richards 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 |
| 82426 | Gomphocarpus fruticosus subsp. fruticosus | 6 Sep 1956 | HM Richards |
HM Richards 6122 | WD Stevens | MO |
Mbale District; Mbala [=Mbala District], Kawimbe | 0 | Zambia | 0831C4 | N | 1524 | Small shrub 5 feet, on ant-hill close to river. Wet ground. Stem stiff, green leaves, verticilate, glabrous. Flowers cream. Seeds green. | -8.782500 | 31.441111 | 5 |