The following is a list of the collections made by Horn in species name order. The records are of species which occur in Democratic Republic of Congo (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 |
| 93868 | Boscia mossambicensis | 21 Jun 2007 | PF Horn |
PF Horn Not known | MM Hochobes | WIND |
Caprivi: Next to tar road, among other trees on an anthill. 1741.036'S 2404.223'E | 0 | Namibia (Caprivi Strip) | 1724C1 | 0 | Shrub; Notes: Small shrub, about 60-100 cm high. Multi-stemmed. Remnants of flowers. Fruit spherical, 1 cm, green when unripe. | -17.683890 | 24.070280 | 5 | ||||||
| 95386 | Entada arenaria subsp. arenaria | 24 Nov 2004 | PF Horn |
PF Horn Number unknown | D Lutombi | WIND |
Caprivi: Next to Caprivi tar road, 30km from Bagani to Katima. | 0 | Namibia (Caprivi Strip) | 1822A1 | 0 | 70 cm high; Dwarf shrub; Notes: Dwarf shrub, 50-70cm high. Flowers: pale yellow, small, clustered. Stem: two or three, straight, thin, growing upwards. Bark: smooth, green. Fruit/seed: green, 30-40mm broad, 150mm long, pod-shaped, single, smooth, seed clearly seen in pod. Sap: none. Other: slender dwarf shrub, few branches. Seems to grow anew from rootstock every year. Lots of fires there. | -18.125000 | 22.125000 | 2 | ||||||
| 95168 | Faidherbia albida | 10 May 2003 | PF Horn |
PF Horn Number unknown | D Lutombi | WIND |
Caprivi: Ncangcara Island in the Kavango river. | 0 | Namibia (Caprivi Strip) | 1821A2 | 0 | 15 m high; Tree; Notes: Huge umbrella shaped tree, 15 m high. One, straight, thick stem growing upwards. Bark rough, peeling, light grey, no sap present. Flowers white, 10 cm long, spike, clustered, sweetish smell. Uncommon, in well-drained sandy loam soil, on plain in closed shrubland. | -18.125000 | 21.375000 | 2 | ||||||
| 95189 | Gymnosporia senegalensis | 10 May 2003 | PF Horn |
PF Horn Number unknown | D Lutombi | WIND |
Caprivi: Ncangcara Island in Kavango River. | 0 | Namibia (Caprivi Strip) | 1821A2 | 0 | 250 cm high; Shrub; Scrambler; Notes: Shrub/scrambler. Height: 250cm. Stem: two or three, straight, thin, ascending, latex. Bark: smooth, light grey. Flowers: white, small 1mm, round, smooth, clustered on stems. Grows in other shrubs, long branches, thick. Sap: present. | -18.125000 | 21.375000 | 2 | ||||||
| 94571 | Moringa oleifera | 6 Oct 2004 | PF Horn |
PF Horn Number unknown | FM Chase (née Crawford) | WIND |
Alien, upright tree - no thick foliage, in garden, probably garden plant. Not seen in wild. | Caprivi: M.A.W.R.D, extension office yard at Itomba. | 2 | Namibia (Caprivi Strip) | 1724D2 | 0 | Tree, 4 m high. Flowers white, 10-15mm, pea-shaped, sweet smelling, clustered, smooth. Stem, one, twisted, thick, growing upwards. Bark smooth, whitish. Fruit/seeds still green, 8mm diameter 20cm long. Long fluted (grooved) pod with sharp end, round, single, smooth. Sap: none. | -17.625000 | 24.875000 | 4 | |||||
| 93314 | Rotheca myricoides | 29 Dec 2008 | PF Horn |
PF Horn Number unknown | D Lutombi | WIND |
Caprivi: Western Caprivi, 11 km south of Omega 3 on a small gravel road to a borehole #Qowexa. | 0 | Namibia (Caprivi Strip) | 1722D4 | 0 | Shrub; Notes: Small shrub with softish stems. Leaves dark green and slightly fleshy. Flowers impressive with four white petals and the middle (bottom) are blue. Rare, in that area. Fire damaged. | -17.875000 | 22.875000 | 5 | ||||||
| 95092 | Rotheca myricoides | 23 Dec 2003 | PF Horn |
PF Horn Number unknown | C Mannheimer | WIND |
Caprivi: Katima Mulilo District: near Mangamba - 2 km from tar road from Rundu to Divundu. | 0 | Namibia (Caprivi Strip) | 1821A2 | 0 | 150 cm high; Shrub; Notes: Straight shrub, 150 cm high. Stems many, straight, thin, growing upwards. Bark glandular, light grey. Flowers light mauve/green, smooth, clustered. Uncommon, in well-drained sand in interdunal street, in open woodland. | -18.125000 | 21.375000 | 2 | ||||||
| 93403 | Vitex mombassae | 29 Dec 2007 | PF Horn |
PF Horn Number unknown | D Lutombi | WIND |
Caprivi: About 11 km south of the tar road at Omega 3. Near a borehole at #Qowexa. | 0 | Namibia (Caprivi Strip) | 1722D4 | 0 | Shrub; Notes: Shrub with soft stems, growing in thick stands, about 1 m high. Flowers white to light lilac. Not common. Damaged by fire. | -17.875000 | 22.875000 | 5 | ||||||
| 94553 | Vitex mombassae | 24 Jan 2008 | PF Horn |
PF Horn Number unknown | D Lutombi MM Uiras | WIND |
Caprivi: On gravel road from Bukalo to Kabbe, near Lusese. | 0 | Namibia (Caprivi Strip) | 1724D1 | 0 | Tree; Notes: Tree about 3 m high. Bark white-grey, very thick and fissured . | -17.625000 | 24.625000 | 4 |