Collections made by Mary Merello

Records: 24

The following is a list of the collections made by Mary Merello in species name order. The records are of species which occur in Rwanda (either as a native/naturalised species or as a cultivated species).

Click on a column heading to sort the entries in that column

NoSpeciesRecord dateRecorder(s)Coll.Det.Conf.HerbariaHabitatLocationLoc code Outing codePlanted code Country QDSGrid ref.FZ DivAlt. (m)NotesLatLongLoc Acc Code
80890 Albizia adianthifolia var. adianthifolia21 Nov 1993DK 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. 1210Zambia1330B1C1370

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.

-13.15444430.7194445
81121 Boerhavia diffusa6 Dec 1993MC Merello
MC Merello 961 Wet forest along Lake TanganyikaKaputa District; Nsumbu National Forest, Kampasa Rain Forest, wet forest along Lake Tanganyika. 108,2000Zambia0830D1N870

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.

-8.58333330.5000005
81336 Chlorophytum colubrinum8 Dec 1993MC Merello
MC Merello 1002 I Nordal Disturbed miombo woodland.Kaputa District; Mweru Wantipa National Park, along main road through park (D-37) 8 km north of the southern park gate. 940Zambia0829C4N1100

Perennial from small, white bulb and tuberous white roots; base of plant blood red, horizontal streaking; stigma, style, filaments and tepals white, anthers yellow; grows among rocks.

-8.91666729.4333335
81341 Chlorophytum gallabatense6 Dec 1993MC Merello
MC Merello 967 F Toka Forest of steep, rocky dry water fallKaputa Region, Nsumbu National Forest, Nkamba Bay Valley Area.1080Zambia0830C2N915

Perennial herb 50 cm tall; foliage thinly succulent; glossy above, glaucous beneath; perianth green; anthers yellow; filaments white; fruits green, occasional. Found between rocks. Roots thick and fleshy.

-8.60000030.4833334
81586 Crossopteryx febrifuga2 Dec 1993MC Merello
MC Merello 942 D Bridson K
Forest patches among cultivated areasMbala District; Mpulungu Protected Forest Area No. 45, off Mbala-Mpulungu Road along dirt road D13 6.4 km from beginning. 0Zambia0831C3N930

Tree 3 m; buds cream-colored; open flowers greenish-cream colour; calyx green; young fruits green, capsular dries brown and splits. Frequent.

-8.78333331.1166675
81762 Cyperus digitatus subsp. auricomus8 Dec 1993MC Merello
MC Merello 988 C Archer PRE
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. 940Zambia0829D1N1000

Clumping sedge of sandy lake shore to 1 m tall; spikes light golden-yellow; leaves with white undersides.

-8.68333329.5333335
82001 Dolichos kilimandscharicus subsp. kilimandscharicus1 Dec 1993DK Harder
MC Merello
CN Nkhoma
DK Harder MC Merello CN Nkhoma 71 DK Harder MO
Miombo woodland in hilly topography. Mbala District; 24 km west of Mbala along Mbala-Mpulungu Road to Power Station Road (D549). By stream 3 km along road D549. 0Zambia0831C3N1320

Locally common plant with yellow-green pods turning brown-purple; stem purple.

-8.93555631.1741675
82002 Dolichos kilimandscharicus subsp. kilimandscharicus1 Dec 1993DK Harder
MC Merello
CN Nkhoma
DK Harder MC Merello CN Nkhoma 104 DK Harder MO
Open woodlandMbala District; 24 km west of Mbala along Mbala-Mpulungu Road to Power Station Road (D549). Open woodlands between 22.6-25.6 km along D549 becoming road RD2. 0Zambia0831C3N1740

Common plant with stem green to purple. Inflorescence light yellow with purple streaks. Wings almost completely purple.

-8.93333331.1833335
82120 Entada abyssinica25 Nov 1993DK 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. 1170Zambia1131B1N1470

Tree 10 m; rough, grey bark, thornless; calyx light green; filaments white; anthers light yellow; inflorescence turning orange then brown.

-11.15527831.5511115
82121 Entada abyssinica27 Nov 1993DK Harder
MC Merello
CN Nkhoma
DK Harder MC Merello CN Nkhoma 15 RE Gereau MO
Chishimba Falls picnic and camping areaChishimba 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. 2010Zambia1030B2N1380

Tree 5-6 m with sweet flower scent; white filaments with yellow anthers ageing to yellow flowers.

-10.15277830.9150004
82370 Gisekia pharnaceoides var. pharnaceoides8 Dec 1993MC 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. 940Zambia0829D1N1000

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.

-8.68333329.5333335
82529 Hoslundia opposita6 Dec 1993MC Merello
MC Merello 976 AJ Paton K
Open woodland at shores of Lake Tanganyika, Chilanga Rocks Campground. Kaputa District; Nsumbu National Park.1080Zambia0830D1N900

Scrambling shrub 3 m tall; perianth white; "generic herbal" fragrance. Very common.

-8.55000030.6166675
82628 Indigofera spicata8 Dec 1993DK Harder
MC Merello
CN Nkhoma
DK Harder MC Merello CN Nkhoma 980 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. 940Zambia0829D1N1000

Prostrate perennial herb; sepals light green; all petals white at base; coral towards tips; fruits green flushed with red at apex. Uncommon.

-8.68333329.5333335
82918 Mimosa pigra8 Dec 1993DK Harder
MC Merello
CN Nkhoma
DK Harder MC Merello CN Nkhoma 991 RE Gereau 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. 940Zambia0829D1N1000

Shrub, armed; 70-80 cm tall; flowers pale pink, fruits golden-green; leaves close when touched.

-8.68333329.5333335
82919 Mimosa pigra18 Nov 1993DK Harder
MC Merello
CN Nkhoma
M Mupeta
DK Harder MC Merello CN Nkhoma M Mupeta 1932 RE Gereau MO
In seasonally inundated area on deep alluvial soils.Kasanka National Park, Luwombwa River. 990Zambia1230C1C1170

Frequent shrub at edge of water; flowers pink with yellow pollen; pods golden-green, maturing dark brown-black.

-12.53861130.2277785
82993 Neorautanenia mitis2 Dec 1993DK Harder
MC Merello
CN Nkhoma
DK Harder MC Merello CN Nkhoma 953 DK Harder MO
Disturbed forest along stream bed.Mbala District; Mpulungu Protected Forest Area No. 45, along dirt road D13 1.7 km west of its intersection with Mbala-Mpulungu Road. 0Zambia0831C3N1040

Perennial vine, prostrate, with erect leaves 25 cm tall; blue-grey under sides with sandpaper texture; calyx green tinged with purple; banner green streaked with purple; wings purple, keel white, anthers orange-yellow; stamens white; young pods with a golden-brown pubescence.

-8.81666731.1333335
83227 Pericopsis angolensis7 Nov 1993DK Harder
MC Merello
DK Harder MC Merello 911 DK Harder MO
Woodlands, somewhat disturbed by fire and cutting. 2 km northeast of Choma along the Livingstone-Lusaka Road.0Zambia1627C3S1290

Slender tree 3.5 m tall; leaves glaucous; buds covered with a golden brown pubescence; sepals green-brown; petals white with purple stripes; banner with lime-green spot in center surrounded by dark purple patch, anthers yellow, filaments green.

-16.78333327.1666675
83228 Pericopsis angolensis29 Nov 1993DK Harder
MC Merello
CN Nkhoma
DK Harder MC Merello CN Nkhoma 2188 DK Harder MO
Collections right above falls, in surrounding forest and along road in sandy soil in miombo woodland. Mbala District; Lungu Protected Forest Area; Kalambo Falls National Heritage site.1250Zambia0831C1N1230

Tree 10 m; on steep slopes calyx olive-green; petioles and petiolules with brown pubescence; calyx lobes white inside; standard white with purple veins on both sides; wings white; keel white; young pods green.

-8.59722231.2394445
83229 Pericopsis angolensis1 Dec 1993DK Harder
MC Merello
CN Nkhoma
DK Harder MC Merello CN Nkhoma 107 DK Harder MO
Open woodlandMbala District; 24 km west of Mbala along Mbala-Mpulungu Road to Power Station Road (D549). Open woodlands between 22.6-25.6 km along D549 becoming road RD2. 0Zambia0831C3N1740

Tree with brown calyx and purple-streaked petals. Stamens and pistil green.

-8.93333331.1833335
83230 Pericopsis angolensis16 Nov 1993DK Harder
MC Merello
CN Nkhoma
M Mupeta
DK Harder MC Merello CN Nkhoma M Mupeta 1906 DK Harder MO
Collections in small mushitu forest and mixed miombo with large termite mounds. Kasanka National Park, ca. 1 km E of Musande Tent Camp.990Zambia1230C1C1260

Frequent miombo tree to 10 m; sometimes tipped up and growing horizontally; all surfaces including up to calyx covered with golden hairs; white standard streaked with deep purple with light green middle spot; wings purple; keel white with purple stripes. N.V. "umvbanga"

-12.51666730.1333335
83860 Tamarindus indica5 Dec 1993DK Harder
MC Merello
CN Nkhoma
M Mupeta
E Tmngonga
DK Harder MC Merello CN Nkhoma M Mupeta E Tmngonga 2212 DK Harder MO
In small patch of thick forest on north side of falls and up slope towards Nsamba Lodge. Kaputa District; Nsumbu National Park, along Lufubu River at Mwepwe Falls (Kafuna Falls).1080Zambia0830D1N900

Occasional tree 15 m tall; rough grey and black bark; leaflets light green; calyx green at base with yellow-orange lobes; standard closed to an open tube, orange with red veins; filaments red-green; ovary light green.

-8.69222230.5488895
84078 Tylosema fassoglense10 Nov 1993DK Harder
MC Merello
DK Harder MC Merello 924 FJ Breteler WAG
Disturbed woodlandsDisturbed woodlands of Yieldingtree Farm, lands on southwest side of road, 14 km northwest of Lusaka on Botha's Rust Road (Mungwi Road). 0Zambia1528A3C1170

Prostrate leafless vine spreading 2-4 m in all directions, stems red; petals yellow, young fruits red. Common.

-15.36666728.1333335
83901 Vepris nobilis6 Dec 1993MC Merello
MC Merello 956 MC Merello MO
Wet forest along Lake TanganyikaKaputa District; Nsumbu National Forest, Kampasa Rain Forest, wet forest along Lake Tanganyika. 108,2000Zambia0830D1N870

Tree 6 m; young fruits light green. Common.

-8.58333330.5000005
84147 Vigna luteola19 Nov 1993DK Harder
MC Merello
CN Nkhoma
M Mupeta
DK Harder MC Merello CN Nkhoma M Mupeta 1972 DK Harder MO
Mushitu dominated by Syzygium, marshes and open waterKasanka National Park; Kalamafiala Forest. 990Zambia1230C1C1170

Rare twiner in grass and at edge of smaller ponds; stems tinged red; calyx green; standard green outside, yellow inside; wings yellow; keel lighter yellow; closed buds tinged purple at tip.

-12.57888930.2297225


Copyright: The Rwanda flora team, 2024-25

The Rwanda flora team (2025). Flora of Rwanda: Collections made by Mary Merello.
https://www.rwandaflora.com/speciesdata/utilities/utility-display-collections-by-person.php?person_id=526, retrieved 5 December 2025

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