The following is a list of the collections made by Mary Merello in species name order. The records are of species which occur in Uganda (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 |
| 80890 | Albizia adianthifolia var. adianthifolia | 21 Nov 1993 | DK Harder MC Merello CN Nkhoma |
DK Harder MC Merello CN Nkhoma 2042 | RE Gereau | MO |
Collections below falls along Kaombe River in riverine forest. Rocky soils, quartz sand, basalt outcrops. | Kundalila Falls Picnic Area, 13 km S of Serenje-Mpika Hwy. | 121 | 0 | Zambia | 1330B1 | C | 1370 | Occasional large tree to 10 m; calyx green; corolla tube white; male flowers, stamen on long column, red; female flowers, may be sterile; central flower white filaments, fertile?; anthers red. | -13.154444 | 30.719444 | 5 | |||
| 80921 | Amblygonocarpus andongensis | 6 Nov 1993 | SM Chisumpa DK Harder MC Merello |
SM Chisumpa DK Harder MC Merello 1876 | RE Gereau | MO |
Along roadside in woodland (miombo) | Simonga Village, along Nakatindi Road (Livingstone-Sesheke Road) approx. 32 km W from Livingstone. . | 0 | Zambia | 1725D4 | S | 0 | Tree, 10 m with red-brown bark; petiole and petiolules brown-red; leaflets light green; corolla creamy white; anthers yellow. Seed fried as ground nut substitute. Pods powdered and administered against termites. | -17.966667 | 25.916667 | 5 | ||||
| 81121 | Boerhavia diffusa | 6 Dec 1993 | MC Merello |
MC Merello 961 | Wet forest along Lake Tanganyika | Kaputa District; Nsumbu National Forest, Kampasa Rain Forest, wet forest along Lake Tanganyika. | 108,200 | 0 | Zambia | 0830D1 | N | 870 | Prostrate vining herb, contains white latex; younger stems pinkish; leaf with white undersides, young fruits green; petals pinkish-lavender, anthers yellow. Uncommon, grows in open, rocky area. | -8.583333 | 30.500000 | 5 | |||||
| 82120 | Entada abyssinica | 25 Nov 1993 | DK Harder MC Merello CN Nkhoma |
DK Harder MC Merello CN Nkhoma 2144 | RE Gereau | MO |
On rocks and in surrounding miombo woodland; rocky soils, Uapaca woodland. | Chinsali District; Shiwa Ng'andu, Mansha River. Collections at Chusa Falls. | 117 | 0 | Zambia | 1131B1 | N | 1470 | Tree 10 m; rough, grey bark, thornless; calyx light green; filaments white; anthers light yellow; inflorescence turning orange then brown. | -11.155278 | 31.551111 | 5 | |||
| 82121 | Entada abyssinica | 27 Nov 1993 | DK Harder MC Merello CN Nkhoma |
DK Harder MC Merello CN Nkhoma 15 | RE Gereau | MO |
Chishimba Falls picnic and camping area | Chishimba Falls. Ca 32 km northwest of Kasama at Chishimba Falls picnic and camping area. 13 km from intersection of roads M3 and D20 on road D20 and 2 km south/southwest on access road to power station. | 201 | 0 | Zambia | 1030B2 | N | 1380 | Tree 5-6 m with sweet flower scent; white filaments with yellow anthers ageing to yellow flowers. | -10.152778 | 30.915000 | 4 | |||
| 82370 | Gisekia pharnaceoides var. pharnaceoides | 8 Dec 1993 | MC Merello |
MC Merello 984 | MC Merello | MO |
Dried dambo and grasslands around Lake Mweru Wantipa. | Kaputa District; Mweru Wantipa National Park, along main road through park (D-37) 18.6 km south of northern park gate. | 94 | 0 | Zambia | 0829D1 | N | 1000 | Annual succulent herb; lower stems pinkish; 20 cm tall; grows in clumps; sepals green; petals white fading to yellow; stamens red-violet; leaves white on undersides. | -8.683333 | 29.533333 | 5 | |||
| 82529 | Hoslundia opposita | 6 Dec 1993 | MC Merello |
MC Merello 976 | AJ Paton | K |
Open woodland at shores of Lake Tanganyika, Chilanga Rocks Campground. | Kaputa District; Nsumbu National Park. | 108 | 0 | Zambia | 0830D1 | N | 900 | Scrambling shrub 3 m tall; perianth white; "generic herbal" fragrance. Very common. | -8.550000 | 30.616667 | 5 | |||
| 84201 | Waltheria indica | 8 Dec 1993 | MC Merello |
MC Merello 992 | MC Merello | MO |
Dried dambo and grasslands around Lake Mweru Wantipa. | Kaputa District; Mweru Wantipa National Park, along main road through park (D-37) 18.6 km south of northern park gate. | 94 | 0 | Zambia | 0829D1 | N | 1000 | Perennial herb to 75 cm tall; petals yellow; calyx green. | -8.683333 | 29.533333 | 5 | |||
| 84232 | Ziziphus abyssinica | 10 Nov 1993 | MC Merello |
MC Merello 925 | MC Merello | MO |
Disturbed woodlands | Disturbed woodlands of Yieldingtree Farm, lands on southwest side of road, 14 km northwest of Lusaka on Botha's Rust Road (Mungwi Road). | 0 | Zambia | 1528A3 | C | 1170 | Sprawling shrub 2 m; armed; young branches reddish-brown; leaves glossy above, golden brown soft pubescent beneath; flowers yellow-green. | -15.366667 | 28.133333 | 5 |