Algaí
Is plandaí simplí fótaisintéiseacha iad na hAlgaí, cuid díobh aoncheallach agus cinn eile ilcheallach. 
Is plandaí uisce iad a bhformhór agus glaoitear feamainn ar na cinn is mó agus is coimpléasaí. Meastar iad i measc 'na bplandaí' mar gheall ar a gcumas fótaisintéiseach, agus 'simplí', toisc nach bhfuil orgáin leithleacha na bplandaí uaisle acu
(m.sh. duilleoga, fréamhacha nó fíocháin soithíocha).
Is féidir iad a idirdhealú ó protozoa, mar nach bhfuil an cumas fótaisintéiseach ag na protozoa.
Tá go leor díobh photoautotrophic, cé go mbíonn grúpaí acu mixotrophic, ag fáil fuinnimh ní amháin ó a gcumas fótaisintéiseach, ach freisin ó iontógáil nó comhshamhlú carbóin orgánaigh trí osmotrophy, myzotrophy, nó phagotrophy.

Aicmiú

Sainaithint 
 Abbott, I.A. and Hollenberg, G.J. 1976. Marine Algae of California. Stanford University Press, California. ISBN 0-8047-0867-3
 Brodie, J.A. and Irvine, L.M. 2003. Seaweeds of the British Isles. Volume 1 Part 3B. The Natural History Museum, London. ISBN 1-898298-87-4
 Burrows, E.M. 1991. Seaweeds of the British Isles. Volume 2. British Museum (Natural History), London. ISBN 0-565-00981-8
 Christensen, T. 1987. Seaweeds of the British Isles. Tribophyceae. Volume 4. British Museum (Natural History), London. ISBN 0-565-00980-X
 Dixon, P.S. and Irvine, L.M. 1977. Seaweeds of the British Isles. Volume 1. Part 1. Introduction, Nemaliales, Gigartinales. British Museum (Natural History), London. ISBN 0-565-00781-5
 Irvine, L.M. 1983. Seaweeds of the British Isles. Volume 1, Part 2A. British Museum (Natural History), London. ISBN 0-565-00871-4
 Irvine, L.M. and Chamberlain, Y.M. 1994. Seaweeds of the British Isles. Volume 1 Part 2B. The Natural History Museum, London. ISBN 0-11-310016-7
 Fletcher, R.L. 1987. Seaweeds of the British Isles. Volume 3 Part 1. British Museum (Natural History), London. ISBN 0-565-00992-3
 John, D.M., Whitton, B.A. and Brook, J.A. (Eds.) 2002. The Freshwater Algal Flora of the British Isles. Cambridge University Press, UK. ISBN 0-521-77051-3
 Stegenga, H., Bolton, J.J. and Anderson, R.J.1997. Seaweeds of the South African west coast. Boltus Herbarium, University of Cape Town. ISBN 0-7992-1793-X
 Taylor, W.R. 1957. Marine algae of the north-eastern coasts of North America. Revised edition. University of Michigan Press. Ann Arbor.

Ginearálta 
 Chapman, V.J. 1950.p.36.  Seaweeds and their Uses. Methuen & Co. Ltd., London.
 Guiry, M.D. and Blunden, G. (Eds) 1991. Seaweed Resources in Europe: Uses and Potential. John Wiley & Sons. ISBN 0-471-92947-6
 Lembi, C.A. and Waaland, J.R. (Eds.) 1988. Algae and Human Affairs. Cambridge University Press, Cambridge. ISBN 0-521-32115-8

Naisc sheachtracha 

 AlgaeBase - a comprehensive database of over 35,000 Algae (132,000 names), including seaweeds, with over 5000 images and some 40,000 references.
 Index Nominum Algarum

Eocaróit