The following is a list of the collections made by John Ball in species name order. The records are of species which occur in Rwanda (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 |
| 73926 | Brillantaisia cicatricosa | 6 Aug 1963 | JS Ball |
JS Ball 62 | SRGH |
Under shade in evergreen forest | Nchisi Forest | 0 | Malawi | 1334A3 | C | 1450 | Very large straggling bushy herb; bright blue-mauve flowers; square stems up to 8 feet high. | -13.349990 | 34.016670 | 5 | |||||
| 49373 | Eulophia guineensis | 1 Dec 1954 | JS Ball |
JS Ball 437 | SRGH |
In red soil and black humus over boulders in semiriverine shade | Umvumvumvu River gorge, Chimanimani District. | 47 | 0 | Zimbabwe | 1932D1 | E | 820 | Cited in Flora Zambesiaca Volume 11 part 2: 465,1998). Additional notes by J.S. Ball state: "Fairly common beside Umvumvuvu River in region of Gorge beside middle crossing on Melsetter road" (Ball 2009) | 6 | ||||||
| 36182 | Polystachya albescens subsp. imbricata | 23 Nov 1975 | JS Ball Petterson |
JS Ball Petterson 1375 | SRGH K |
Near Shigodora, southwestern Vumba | 63 | 0 | Zimbabwe | 1932b1 | E | 0 | Cited in Flora Zambesiaca Vol. 11 part 2: 329 (1998) | 2 | |||||||
| 36213 | Polystachya fusiformis | 26 Jan 1955 | JS Ball |
JS Ball 487 | SRGH K |
Chimanimani Mts | 33 | 0 | Zimbabwe | 1933C3 | E | 1660 | Cited in Flora Zambesiaca Vol. 11 part 2: 347 (1998) | 2 | |||||||
| 36243 | Polystachya lindblomii | 8 Feb 1976 | JS Ball |
JS Ball 1403 | SRGH K |
Pungwe River below the falls, Nyanga District | 54 | 0 | Zimbabwe | 1832B4 | E | 0 | Cited in Flora Zambesiaca Vol. 11 part 2: 348 (1998) | 2 | |||||||
| 36225 | Polystachya simplex | 14 Dec 1975 | JS Ball |
JS Ball 1377 | SRGH K |
Bunga Forest, Vumba | 39,63,156 | 0 | Zimbabwe | 1932B2 | E | 0 | Cited in Flora Zambesiaca Vol. 11 part 2: 348 (1998) | 2 |