Records determined by Ian Riddell

Determinations: 44

The following is a list of the records determined by Ian Riddell 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
79521Acmella radicans var. radicans03 Jun 2017IC Riddell
IC Riddell MA Hyde Newlands Vlei, Harare10Zimbabwe1731C3C1510

In extensive patches, up to 2.8 m tall

-17.80000031.0790007
116653Acmella radicans var. radicans20 May 2022IC Riddell
IC Riddell BT Wursten Komani0Zimbabwe1730D2C1481

https://www.inaturalist.org/observations/117832075

-17.70063030.9861767
107972Adansonia digitata08 Aug 2019IC Riddell
IC Riddell Ndowoyo Communal Lands, Chipinge0Zimbabwe2032C2E486

iNaturalist record

-20.56518332.4827026
107973Adansonia digitata08 Jan 2018IC Riddell
IC Riddell Sango, Save Valley Conservancy0Zimbabwe2032A1E500

iNaturalist record

-20.23915532.2028157
107974Adansonia digitata11 Aug 2014IC Riddell
IC Riddell Matusadona National Park.1650Zimbabwe1628C4N524

iNaturalist record

-16.96785928.4720907
107975Adansonia digitata01 Sep 1980IC Riddell
IC Riddell Chizarira National Park1610Zimbabwe1727D2N1042

iNaturalist record

-17.71451427.8700365
112956Afzelia quanzensis11 Aug 2019IC Riddell
IC Riddell MA Hyde C. 25 km Southwest of Mutare.0Zimbabwe1932B1E865

iNaturalist record

-19.22151232.5070957
112957Afzelia quanzensis08 Aug 2019IC Riddell
IC Riddell BT Wursten Ndowoyo Communal Lands, Chipinge0Zimbabwe2032C2E0

iNaturalist record

-20.56498032.4828305
112958Afzelia quanzensis12 Jan 2018IC Riddell
IC Riddell BT Wursten Sango, Save Valley Conservancy0Zimbabwe2032A1S600

iNaturalist record

-20.17303032.1050186
119080Albizia amara subsp. sericocephala29 Jan 2023MA Hyde
IC Riddell
IC Riddell On a termite moundMukuvisi Woodland1,20Zimbabwe1731C3C1484

On a large anthill.

-17.84375931.0846747
119084Albizia amara subsp. sericocephala29 Jan 2023MA Hyde
IC Riddell
IC Riddell Sandy woodlandMukuvisi Woodland1,20Zimbabwe1731C3C1485

Five tall trees on the anthill.

-17.84455031.0842777
117589Albizia tanganyicensis25 Sep 2022IC Riddell
IC Riddell Miombo woodland regrowth on ironstone hillSummit ridge, Tree Society Arboretum, Lake Chivero110Zimbabwe1730D4C1452

-17.88588430.7674445
102467Ansellia africana25 Jul 2018IC Riddell
IC Riddell C Peter Monavale Vlei, Harare770Zimbabwe1731C3 C1460

ADU OrchidMap record

6
119081Ansellia africana29 Jan 2023MA Hyde
IC Riddell
MA Hyde IC Riddell On a tree trunkMukuvisi Woodland1,20Zimbabwe1731C3 C1485

7
98724Brachystegia allenii20 Sep 2018IC Riddell
IC Riddell BT Wursten Roadside in mixed miombo woodland. National Parks Office, Marongora.0Zimbabwe1629A1N833

-16.22330129.1614987
123444Combretum kirkii03 Nov 2023MA Hyde
M Coates Palgrave
C Sharp
IC Riddell
K van Laeren
J Van Bel
S Mulunjana
IC Riddell In deciduous dry forestDande Safari Area0Zimbabwe1530C4N441

Massive woody lianes with prominent bosses.

-15.91835830.3854797
117991Crinum crassicaule30 Oct 2022IC Riddell
IC Riddell RH Archer Mukuvisi Woodland, Harare1,20Zimbabwe1731C3 C1489

In flower. https://www.inaturalist.org/observations/140955340

7
107509Cyrtorchis praetermissa subsp. praetermissa13 Oct 2018IC Riddell
IC Riddell BT Wursten In woodlandMukuvisi Woodland, Harare1,20Zimbabwe1731C3 C1500

INaturalist record: https://www.inaturalist.org/observations/17488673

7
107510Cyrtorchis praetermissa subsp. praetermissa14 Nov 2018IC Riddell
IC Riddell BT Wursten In woodlandMukuvisi Woodland, Harare1,20Zimbabwe1731C3 C1500

INaturalist record: https://www.inaturalist.org/observations/18389003

7
107512Cyrtorchis praetermissa subsp. praetermissa03 Dec 2019IC Riddell
IC Riddell BT Wursten Monavale, Harare1,770Zimbabwe1731C3 C1474

INaturalist record: https://www.inaturalist.org/observations/36405595

7
113428Diospyros whyteana27 Oct 2020IC Riddell
IC Riddell 54,1550Zimbabwe1832B2E1987

iNaturalist record

-18.23333132.7944117
117351Eichhornia crassipes30 Jan 2021IC Riddell
IC Riddell Crowborough, Harare10Zimbabwe1730D4C1416

iNaturalist record

-17.86006230.9131367
118323Eulophia subsaprophytica21 Nov 2022IC Riddell
IC Riddell BT Wursten Mukuvisi Woodland1,20Zimbabwe1731C3 C1508

https://www.inaturalist.org/observations/142598797. A new species for the Mukuvisi Woodland.

7
117543Ficus abutilifolia25 Sep 2022IC Riddell
IC Riddell Miombo woodland regrowth on ironstone hillSummit ridge, Tree Society Arboretum, Lake Chivero110Zimbabwe1730D4C1452

-17.88588430.7674445
107442Filicium decipiens02 Apr 2019IC Riddell
IC Riddell MA Hyde In gardenNewlands,Harare12Zimbabwe1731C3C1508

-17.81170631.0810907
117659Filicium decipiens15 May 2022MA Hyde
IC Riddell
IC Riddell In garden5, Leeds Close, Newlands12Zimbabwe1731C3C1508

-17.81154331.0815106
118319Gladiolus atropurpureus21 Nov 2022IC Riddell
IC Riddell C Archer Mukuvisi Woodland, Harare1,20Zimbabwe1731C3 C1508

https://www.inaturalist.org/observations/142533378

7
122803Gladiolus dalenii subsp. dalenii16 Jan 2021IC Riddell
IC Riddell In vlei grasslandMonavale Vlei, Harare.1,770Zimbabwe1731C3 C1457

https://www.inaturalist.org/observations/68150811

7
118510Globimetula mweroensis24 Nov 2015IC Riddell
IC Riddell CCH Jongkind Newlands, Harare10Zimbabwe1731C3C1508

Host: Ficus sur. https://www.inaturalist.org/observations/2417029

-17.81164031.0809637
118520Globimetula mweroensis10 Aug 2018IC Riddell
IC Riddell RH Archer Newlands, Harare10Zimbabwe1731C3C1508

Host: Pyracantha. https://www.inaturalist.org/observations/15283784

-17.81164031.0809637
118521Globimetula mweroensis27 Apr 2019IC Riddell
IC Riddell CCH Jongkind Chapungu, Harare10Zimbabwe1731C3C1522

Host: Salix. https://www.inaturalist.org/observations/23596959

-17.84261031.1215387
102468Habenaria schimperiana05 Feb 2017IC Riddell
IC Riddell C Peter Monavale Vlei, Harare1,770Zimbabwe1731C3 C1460

ADU OrchidMap record

7
116059Hibiscus cannabinus25 Mar 2022IC Riddell
IC Riddell MA Hyde Monavale Vlei1,770Zimbabwe1731C3C1458

https://www.inaturalist.org/observations/109523824

-17.80761031.0070087
116061Nymphaea nouchali var. caerulea25 Mar 2022IC Riddell
IC Riddell In waterMonavale Vlei, Harare1,770Zimbabwe1731C3C1461

https://www.inaturalist.org/observations/109521335

-17.80576531.0083407
117910Pteridium aquilinum subsp. capense12 Oct 2022IC Riddell
IC Riddell BT Wursten Mukuvisi Woodland1,20Zimbabwe1731C3C1486

https://www.inaturalist.org/observations/138585744

-17.84888331.0855097
113429Rhoicissus tridentata26 Oct 2020IC Riddell
IC Riddell Nyanga National Park54,1550Zimbabwe1832B1E1764

iNaturalist record

-18.24981132.7170737
121255Rhynchosia monophylla12 Jul 2023IC Riddell
IC Riddell C Archer Great Dyke, Mazowe, Zimbabwe.0Zimbabwe1630D4N1715

Quite widespread in short/dwarf miombo on the ridge of dyke. First record for Flora Zambesiaca division N. https://www.inaturalist.org/observations/174823831

-16.84008530.8578637
119857Sida cordifolia subsp. maculata12 Mar 2023MA Hyde
IC Riddell
MA Hyde IC Riddell Sandy grasslandMukuvisi Woodland1,20Zimbabwe1731C3C1504

-17.84203931.0893877
112923Trichilia emetica subsp. emetica04 Nov 2019IC Riddell
IC Riddell BT Wursten Chizarira National Park1610Zimbabwe1727D1N653

iNaturalist record

-17.67905027.7021456
112924Trichilia emetica subsp. emetica21 Sep 2018IC Riddell
IC Riddell BT Wursten Mana Pools National Park590Zimbabwe1529C4N365

iNaturalist record

-15.77257229.2703847
112925Trichilia emetica subsp. emetica13 Jan 2018IC Riddell
IC Riddell BT Wursten Sango, Save Valley Conservancy0Zimbabwe2032A1S581

-20.242708Lon:

-20.24270832.0321506
119309Triumfetta annua12 Mar 2023MA Hyde
IC Riddell
IC Riddell MA Hyde In disturbed ground in the garden.5, Leeds Close, Newlands10Zimbabwe1731C3C1506

Specimen checked, not kept.

-17.81148531.0810646
122736Xylotheca tettensis var. macrophylla02 Nov 2023IC Riddell
IC Riddell Dande, Guruve0Zimbabwe1530C4N383

iNaturalist record

-15.78625830.3853957
108135Xysmalobium undulatum16 Mar 2020IC Riddell
IC Riddell BT Wursten Marlborough vlei, Harare10Zimbabwe1730D2C1466

iNaturalist record

-17.73652030.9896187


Copyright: Mark Hyde, Bart Wursten, Petra Ballings and Meg Coates Palgrave, 2014-24

Hyde, M.A., Wursten, B.T., Ballings, P. & Coates Palgrave, M. (2024). Flora of Malawi: Records determined by Ian Riddell.
https://www.malawiflora.com/speciesdata/utilities/utility-display-determinations-by-person.php?person_id=250, retrieved 25 April 2024

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