Lemna aequinoctialis Welw.

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Photo: Bart Wursten
Malilangwe Wildlife Reserve

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Synonyms:	Lemna angolensis Hegelm. Lemna paucicostata Engelm. Lemna perpusilla Torr.
Common names:	Duckweed (English)
Frequency:
Status:	Native
Description:	Minute free-floating aquatic, often forming extensive colonies. Thallus pale green, more or less ovate, 1.5-4 mm, asymmetric, obscurely 3-veined. Root solitary.
Notes:
Derivation of specific name:	aequinoctialis: of the equinox (possibly referring to the flowering time)
Habitat:	Surface of pools, both permanent and seasonal
Flowering time:
Worldwide distribution:
Botswana distribution:	N,SE
Growth form(s):	Aquatic.
Endemic status:
Red data list status:
Insects associated with this species:
Spot characters:	Display spot characters for this species
Literature:	Daubs, E.H. (1965). A Monograph of Lemnaceae Illinois Biological Monographs 34 The University of Illinois Press, Urbana. Pages 25 - 27. As Lemna perpusilla (Includes a picture). Gibbs Russell, G.E. (1977). Keys to Vascular Aquatic Plants in Rhodesia Kirkia 10(2) Page 462. as Lemna perpusilla Haigh, A. & Boyce, P. (2012). Araceae Flora Zambesiaca 12(1) Pages 6 - 8. (Includes a picture). Heath, A. & Heath, R. (2009). Field Guide to the Plants of Northern Botswana including the Okavango Delta Kew Publishing Page 559. (Includes a picture). Mapaura, A. & Timberlake, J. (eds) (2004). A checklist of Zimbabwean vascular plants Southern African Botanical Diversity Network Report No. 33 Sabonet, Pretoria and Harare Page 93. Phiri, P.S.M. (2005). A Checklist of Zambian Vascular Plants Southern African Botanical Diversity Network Report No. 32 Page 105. as Lemna perpusilla Setshogo, M.P. (2005). Preliminary checklist of the plants of Botswana. Sabonet Report no. 37. Sabonet, Pretoria and Gaborone Page 126. Timberlake, J.R. & Childes, S.L. (2004). Biodiversity of the Four Corners Area: Technical Reviews Volume Two (Chapter 5-15) Appendix 5-1: Plant Checklist Occasional Publications in Biodiversity 15 Page 185.

Other sources of information about Lemna aequinoctialis:

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Flora of Burundi: Lemna aequinoctialis
Flora of Caprivi: Lemna aequinoctialis
Flora of Malawi: Lemna aequinoctialis
Flora of Mozambique: Lemna aequinoctialis
Flora of Zambia: Lemna aequinoctialis
Flora of Zimbabwe: Lemna aequinoctialis

External websites:

African Plants: A Photo Guide (Senckenberg): Lemna aequinoctialis
African Plant Database: Lemna aequinoctialis
BHL (Biodiversity Heritage Library): Lemna aequinoctialis
EOL (Encyclopedia of Life): Lemna aequinoctialis
GBIF (Global Biodiversity Information Facility): Lemna aequinoctialis
Google: Web - Images - Scholar
iNaturalist: Lemna aequinoctialis
IPNI (International Plant Names Index): Lemna aequinoctialis
JSTOR Plant Science: Lemna aequinoctialis
Mansfeld World Database of Agricultural and Horticultural Crops: Lemna aequinoctialis
Plants of the World Online: Lemna aequinoctialis
Tropicos: Lemna aequinoctialis
Wikipedia: Lemna aequinoctialis