Index

Alphabetical list of algal images (no thumbnails, for fast loading), with brief descriptions.
[NB. IDs have been checked against "The Freshwater Algal Flora of the British Isles":
however some older IDs using "How to Know the Freshwater Algae" (Prescott) do not appear in FAFBI, and are marked "Prescott".]

Click on a link to view the image; all images now open in a new window,
so you can have more than one open at once to compare them.
Close the window to return to this page.
Other pages (eg. see links to images sorted by genus) have thumbnail images and descriptive notes.

A   B   C   D   E   F   G   H   K   L   M   N   O   P   Q   R   S   T   U   V   W   X   Z  

[ALGALWEB CONTENTS]

M      

  Mallomonas sp.   1 
unicellular chrysophyte: flagellate with silica scales L. Conailbhe
Loch an Eilein
  Mallomonas caudata   1   Millport resr.
  Mallomonas heterospina  1   Lily Loch
       
  Massartia  1
unicellular dinoflagellate: L.Tallant
Loch an Eilein
 
  Melosira varians  1   2 filamentous Diatom: similar to Aulacoseira, has cylindrical cells linked by spines.
Douglas Water
R. Yarrow
 
  Merismopedia  1   2  3  4  5 colonial Cyanobacterium (coenobium): spherical blue-green cells in multiples of 4 arranged in flat sheets in a square formation L. Chon
Kilchiaran lochan
Loch Trool
  Merismopedia elegans  1 L. Gorm
 
  ?Mesotaenium sp. 1 2  3 4(dividing)  'Saccoderm' desmid; has a single chloroplast: this example has 4 longitudinal ridges which is not reported in FAFBI. The cells were found in dense mucilage adhering to moss on a greenhouse roof. greenhouse, Shewington
       
  Micrasterias (link to illustrated list) unicellular Desmid: semicells are divided by several deep incisions.  
  Micrasterias americana  1  2   SCO366
Camphill reser.
  Micrasterias crux-melitensis  1  2     L.Tallant
Lower L.Glenastle
  Micrasterias fimbriata 1  2  3  4   5   lower L. Glenastle
  Micrasterias jenneri  1  1    R. Creran
  Micrasterias papillifera   1  2 3   L. Chon
  Micrasterias pinnatifida  1   L.Tallant
  Micrasterias radiosa  1  2 3  4  5  6   L. Chon
L. Skeen
L.Dhomhnaill
Loch Gearach
  Micrasterias rotata  1 2   lower L. Glenastle
Loch Gearach
  Micrasterias thomasiana v. notata
 1  2  3  4
  L. Chon
Lower L.Glenastle
  Micrasterias truncata  1     L. Chon
 
  Microcrocis geminata  1 colonial Cyanobacterium: cells look similar to Merismopedia, but are clustered randomly. Ardnave L.
 
  Microcystis 1   2   3  4  5 colonial Cyanobacterium: many small cells randomly arranged in colonial mucilage without definite shape. Gas vacuoles may be present, when this alga is forming a bloom. L. Tallant
SCO366
R. Creran
Millport resr.
  Microcystis aeruginosa 1   2   3   4   5 L. Gorm
Ardnave L.
Millport Resr.
  Microcystis flos-aquae 1   2   3   4   5  6 L. Gorm
L. Chon
Millport Resr.
L. Ballygrant
 
  The genus Microspora with descriptive notes filamentous Chlorophyte: unbranched, with a net-like chloroplast and barrel-shaped cells. The cell wall is made up of H-pieces, which can be seen at the ends of filaments (but do not confuse with broken cells eg. in Ulothrix), or the joins may be seen mid-way along a cell.  
  Microspora spp.    
  Microspora 8Ám.   1    Loch Trool
  Microspora 11Ám.  1 2   Shewington
  Microspora 16Ám. 1   Camphill Resr. 
  Microspora 17Ám. 1 2 3   Cowieslinn
  Microspora 20Ám. 1  2 3  4 5  6 7   Islay
R.Creran
R. Yarrow
 
  Microthamnion  1   2 3 filamentous Chlorophyte: quite a small plant, frequently branching with parietal plate choroplasts Shewington
 
  Mischococcus confervicola   1   2   3
colonial Chlorophyte: spherical cells in linear groups of 4 at the ends of branching threads Shewington
 
  Monoraphidium arcuatum ?1   Bemersyde
  Monoraphidium contortum ?1 unicellular Chlorophyte, slender cells pointed at both ends Bemersyde
  Monoraphidium komarkovae ?1   Bemersyde
       
  Monostroma   1 colonial chlorophyte forming a single-layered flat plate of cells Ravenglass
 
  The genus   Mougeotia   in culture, with descriptive notes. (species can not be distinguished without details of reproduction being known: see table for possibilities based on dimensions) filamentous Chlorophyte: unbranched* with cylindrical cells containing an axile ribbon-like chloroplast which can orient itself relative to the light; frequently seen twisted in different planes. Pyrenoids readily visible.
*short rhizoid-like branches of 1-2 cells may sometimes form.
 
  Mougeotia 5Ám.  1   2   L.Chon
  Mougeotia 8Ám.  1   2   3**  4   5   6  7   8  9 ** examples of aberrant chloroplast morphologies R. Claggain
R.Cree
L. Tallant
Millport
  Mougeotia 11Ám.   1  2  3   R. Claggain
Lochan an Daimh
L. Chon
  Mougeotia 12Ám.   1   L. Chon
  Mougeotia 14Ám.   1 2 3 4  5   R. Claggain
L. Chon
  Mougeotia 16Ám.   1  2   Millport resr.
  Mougeotia 20Ám.   Loch an Eilein
  Mougeotia 22Ám.  1 2   Comer Burn
L. Chon
  Mougeotia 25Ám.   1 2  3   Shewington
L. Chon
  Mougeotia 28Ám.  1   Bemersyde
  Mougeotia 32Ám.  1 2  3 4  5 6  7 8  9 10  11  12   L. Osgaig
Loch an Eilein
Millport
 
  Mougeotiopsis  1 2  3 4 5 6  7  7 filamentous Chlorophyte: unbranched* with cylindrical cells containing an axile ribbon-like chloroplast which can orient itself relative to the light; frequently seen twisted in different planes; no pyrenoids Lochan an Daimh
L. Chon
Loch an Eilein Camphill resr
R. Creran
Lily loch, Islay

      BACK TO TOP


[ALGALWEB CONTENTS]  [ALGALWEB HOME]

John Kinross