Records determined by Mary Merello

Determinations: 28

The following is a list of the records determined by Mary Merello in species name order.

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

NoSpeciesRecord dateRecorder(s)Coll.Det.Conf.HerbariaHabitatLocationLoc code(s) Outing codePlanted code Country QDSGrid ref.FZ DivAlt. (m)NotesLatLongLoc Acc Code
80870Agarista salicifolia22 Nov 1993DK Harder
DK Harder 2099 MC Merello MO
Collections around Kundalila Falls. Rocky soils, quartz sand and basalt outcrops. Kanona District; Kundalila Falls Picnic Area, 13 km S of Serenje-Mpika Hwy.1210Zambia1330B1C1590

Occasional shrub along stream; petioles pink; calyx light green; lobes tipped in pink; young fruits light green.

-13.15444430.7194445
81088Bersama abyssinica subsp. engleriana25 Nov 1993DK Harder
DK Harder 2150 MC Merello 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 at edge of wet forest area bordering woodland; calyx light green; petals white; stigma and style green; past flowers fade to light green.

-11.15527831.5511115
81305Chaetachme aristata1 May 1994DK Harder
DK Harder 3025 MC Merello G McPherson MO
Collections from along W edge of mushitu. Ndola Rural District; 4.6 km W of Lukoshi at intersection of roads to St. Anthony's Mission and Mukumpu School, Kabunda village, Manda mushitu. 0Zambia1327B4W1230

Rare; lianescent shrub in deep shade; tepals green; anthers yellow-orange; fruit light orange.

-13.49722227.9241675
81317Chamaecrista mimosoides9 Mar 1995DK Harder
B Luwiika
MM Nawa
NB Zimba
DK Harder B Luwiika MM Nawa NB Zimba 175 MC Merello MO
In degraded woodland on sand, collections along Manyinga River in flooded area. Kabompo District; Kambyenyuna forest along the Kabompo-Mwinilunga Road ca. 11 km from the Loloma Hospital road junction in Manyinga. 0Zambia1324A4B1140

Very common; in woodland; stem reddish and green; stipules; petals bright yellow.

-13.35277824.2844445
81399Cleome hirta26 May 1994DK Harder
DK Harder 3240 MC Merello MO
Collections at turn out along roadside, in steep woodland and in valley bottoms with seasonal water.Isoka District; ca. 84 km E-SE of intersection of Mpika-Nakonde Highway (Great North Hwy.) on road to (RD72). Connecting to Muyombe (M14), in Fungwe National Forest, # 429. 0Zambia1033A3N1050

Weak-wooded shrub to 1.5 m; also seen in disturbed cultivated fields; calyx red-purple; corolla pink with purple stripe medially and longitudinally; filaments purple; anthers yellow; fruits light green with purple; stems purple.

-10.37583333.1475005
81542Crassula vaginata1 Mar 1995MM Nawa
MM Nawa 148 MC Merello MO
Collections in riverine forest along stream and in adjacent woodland. Mwinilunga District; Lisombo Botanical Reserve along the Lisombo stream ca. 26 km from Ikelenge in Kafweko area; west of Ikelenge. 0Zambia1124B3W1230

Occasional; alongside a path; in woodland; flowers with small white petals; leaves and stem very succulent.

-11.27111124.6388895
82089Elaeodendron buchananii26 May 1994DK Harder
DK Harder 3223 MC Merello MO
Collections along Kabundi stream in Fungwe National Forest # 429 and in woodland. Isoka District; ca. 87 km E/SE of intersection of Mpika-Nakonde Highway (Great North Road) on road to (RD72) Muyombe connecting to Muyombe (M14), collections along Kabundi stream in Fungwe National Forest # 429 and in woodland. 0Zambia1033A3N1020

Tree to 5 m along stream; leaves deep green above; lighter below; fruit, single-seeded, hard, light green.

-10.37361133.1675005
82090Elaeodendron buchananii26 May 1994DK Harder
DK Harder 3233 MC Merello MO
Collections at turn out along roadside, in steep woodland and in valley bottoms with seasonal water.Isoka District; ca. 84 km E-SE of intersection of Mpika-Nakonde Highway (Great North Hwy.) on road to (RD72). Connecting to Muyombe (M14), in Fungwe National Forest, # 429. 0Zambia1033A3N1050

Shrub to 10 m wide; leaves deep green; fruit hard and light green.

-10.37583333.1475005
83638Exochaenium grande9 Dec 1993DK Harder
DK Harder 2284 MC Merello MO
At bridge over Nchelenje River. Collections in dambo on E side of river. Mporokoso District; along Mporokoso-Kasama Road, 95 km ESE of intersection of Mporokoso-Nsama-Kasama Roads N of Mporokoso. 0Zambia0930D1N1410

Occasional, widely scattered herb from fleshy root; lowest part of stem red; calyx green; corolla tube green at base, light yellow-green at middle; lobes white.

-9.72527830.7327785
82370Gisekia 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
82454Harungana madagascariensis17 May 1994DK Harder
DK Harder 3181 MC Merello MO
Collection along river, among rocks, in mushitu and in miombo woodland. Chinsali District; Chipomo Falls National Monument, along Chimanabuwi River. 0Zambia1132C2N1310

Occasional shrub to 2.5 m; on sand; young stem, petiole, midrib, peduncles and minor veins with brown hairs; young fruit light green.

-11.74944432.4722225
82455Harungana madagascariensis24 May 1994CN Nkhoma
CN Nkhoma 275 MC Merello MO
Around stream dominated by bamboo and surrounding miombo woodland. Isoka District; 88.1 km from Isoka-Nakonde Road turnoff to Muyombe. 0Zambia1033A3N1180

1.5 m tall shrub by the bridge. Brown vein on underside of leaves. Small green fruits.

-10.36861133.1825005
82868Maytenus undata22 Nov 1993DK Harder
DK Harder 2098 MC Merello MO
Collections around Kundalila Falls. Rocky soils, quartz sand and basalt outcrops. Kanona District; Kundalila Falls Picnic Area, 13 km S of Serenje-Mpika Hwy.1210Zambia1330B1C1590

Rare shrub in riverine forest margin; with mature fruit only; infructescence stalk red; inflated fruit light yellow-white with red; orange-brown seeds with white aril at attachment.

-13.15444430.7194445
82874Melastomastrum capitatum13 May 1994DK Harder
DK Harder 3124 MC Merello MO
Collections in riverine miombo forest and in surrounding miombo woodlands on sandy soils on Mwaleshi River.Mpika District; Mano Camp just outside and N of North Luangwa N.P. 910Zambia1132C1N1110

Near edge of stream; to 1.5 m tall; in fruit only; calyx light pink on lobes; ovary light green.

-11.64722232.1694445
83164Parinari curatellifolia16 May 1994DK Harder
DK Harder 3135 MC Merello MO
Miombo woodland species mixed with cultivated ornamentals.Mpika District; Mpika town, Chitulika [Ministry of Local Govt. & Housing Hostels] ca. 2 km west of Serenje-Mpika Road, collections within encampment. 0Zambia1131C4N1200

Tree to 5 m x 20 cm dbh; frequent; abaxial leaf surface white, midrib brown; fruits deep green with brown lenticels.

-11.83555631.4233335
83209Peddiea fischeri24 Feb 1995MM Nawa
MM Nawa 111 MC Merello MO
Collection from miombo woodland, dambo and adjacent marsh/swamp. Mwinilunga District; ca. 6.5 km from Lwawu Mission in dambo near road. 0Zambia1124D2W1300

Shrub; to 70 cm; in woodland adjacent to dambo; leaves shiny; flower long, narrow; petals light green; stigma yellow.

-11.65444424.9916675
83327Polygala melilotoides29 May 1994DK Harder
DK Harder 3278 MC Merello MO
In seasonal marsh/grassland with drier raised areas with miombo woodlands. Used for dry season pasture. Chinsali District; 25 km E-NE of (D18) Mubanga-Kasama Road and road (RD66) between pumping station at Misale and Chunga villages, nr. Ikola hills. 0Zambia0932D3N1200

Rare in slow drainage area; leaves with purple coloration; calyx green with purple; petals yellow to light green.

-9.89250032.5611115
83350Psorospermum febrifugum31 Oct 1993DK Harder
DK Harder 1845 MC Merello G McPherson MO
Collections along road and stream in degraded and interplanted woodland.Lusaka: Yielding Tree Farm, ca. 12 km W of Lusaka on Mungwi Road Farmlands N of road. 0Zambia1528A3C1200

Frequent shrub to 3 m, underside of leaves, twigs and outer calyx lobes covered with brownish hairs; corolla lobes whitish, fuzzy; nectaries at base of petals bright orange; anthers yellow; young fruits red with deeper red spots.

-15.36555628.1613895
83351Psorospermum febrifugum18 Nov 1993DK Harder
DK Harder 1941 MC Merello MO
In seasonally inundated area on deep alluvial soils.Kasanka National Park, Luwombwa River. 990Zambia1230C1C1170

Common tree to shrub; red-golden hairs on shoots; calyx light green-red; petals white outside with minute stripes outside, furry inside; fruit bright red.

-12.53861130.2277785
83856Tacca leontopetaloides24 May 1994CN Nkhoma
CN Nkhoma 264 MC Merello MO
Riverine forest around small stream surrounded by miombo woodland.Isoka District; Ca. 91.6 km from Isoka-Nakonde Road turnoff to Muyombe. 0Zambia1033A3N1200

40 cm tall uncommon plant growing by roadside. Cream-colored fruits in 6 lobes.

-10.35750033.1986115
83968Thonningia sanguinea21 Feb 1995DK Harder
DK Harder 2723 MC Merello MO
In degraded miombo on sand with Brachystegia, Hymenocardia, Aframomum. Mwinilunga District; ca. 6.3 km N/NE of Luawu Mission on road to Luano. 0Zambia1124C1W1290

Occasional; parasitic; from scaly rhizome; fleshy cortex yellow; upper scales red-pink.

-11.59333324.1361115
84015Trema orientale27 Nov 1993CN Nkhoma
CN Nkhoma 10 MC Merello 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

Shrub with shiny, short hairs on stem and leaves, small light green fruits.

-10.15277830.9150004
83901Vepris 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
83897Vepris trichocarpa7 Dec 1993CN Nkhoma
CN Nkhoma 135 MC Merello MO
In green thickets on flat landKaputa District; Nsumbu National Park. 11.6 km from Nkamba Lodge west, 4.4 km southwest from bridge on road to park gate at Nsumbu in green thickets on flat land. 1080Zambia0830C2N850

Occasional shrub with oblong fruits. Recorded as Teclea fischeri

-8.59583330.3944445
84187Wahlenbergia capitata7 May 1994DK Harder
DK Harder 3057 MC Merello MO
Brachystegia miombo on broken quartz soil. Serenje District; 16 km N of Chisomo Village on Chisomo-Serenje Road. 0Zambia1330D1C960

Frequent herb to 0.5 m; calyx green; petals white at base, blue on lobes; style white at base, blue at tip; extruded pollen yellow.

-13.52833330.5858335
84188Wahlenbergia capitata10 Mar 1997B Luwiika
B Luwiika 588 MC Merello B Luwiika MO
Collecting along the Sinazongwe/Choma RoadChoma District; Collecting along the Sinazongwe/Choma Road, 11.6 km from the junction. 0Zambia1627C4S1200

Herb, 30 cm, in marsh areas. Stems light green, hard with white sticky hairs; leaves light green, smooth above, hairy underneath; flowers purplish-blue.

-16.86888927.2735565
84194Wahlenbergia napiformis3 Mar 1997B Luwiika
B Luwiika 579 MC Merello B Luwiika MO
Along the Maamba/Sinazongwe RoadChoma District; Collecting along the Maamba/Sinazongwe Road, 11.4 km from the Choma-Lusaka Road. 0Zambia1627C4S1200

Herb, 1 m, common in wet areas. Stems and leaves dark green; flowers light purple; roots white woody.

-16.86888927.2727785
84232Ziziphus abyssinica10 Nov 1993MC Merello
MC Merello 925 MC Merello MO
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

Sprawling shrub 2 m; armed; young branches reddish-brown; leaves glossy above, golden brown soft pubescent beneath; flowers yellow-green.

-15.36666728.1333335


Copyright: The Rwanda flora team, 2024-26

The Rwanda flora team (2026). Flora of Rwanda: Records determined by Mary Merello.
https://www.rwandaflora.com/speciesdata/utilities/utility-display-determinations-by-person.php?person_id=526, retrieved 20 March 2026

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