Photo : http://www.cryptogamicbotany.com/images/oa_chloro/ulva_lactuca_01_05_09_a_324x550.jpg

Domain: Eukaryota
Kingdom: Plantae
Phylum:
Class:
Order:
Family:
Chlorophyta
Ulvophyceae
Ulvales
Ulvaceae
Genus:
Species:
(Species Detail, 2013)
Ulva
U. lactuca http://omp.gso.uri.edu/ompweb/doee/biota/algae/chloro/ulvaf.htm

Kingdom: Plantae
Phylum: Chlorophyta
Class:
Order:
Ulvophyceae
Ulvales
Family:
Genus:
Species:
Ulvaceae
Ulva
U. lactuca
Domain: Eukaryota
-Cells contain membrane bound organelles and a true nucleus http://omp.gso.uri.edu/ompweb/doee/biota/algae/chloro/ulva.htm

http://evolutionaryroutes.wordpress.com/2011/08/31/the-taming-of-the-chloroplast
/
Domain: Eukaryota
Phylum:
Class:
Order:
Family:
Genus:
Species:
Chlorophyta
Ulvophyceae
Ulvales
Ulvaceae
Ulva
U. lactuca
Kingdom: Plantae
- “united by the possession of a plastid derived from primary endosymbiosis”
(“Eukaryotes”, 2013)
Autotrophs
Cell walls made of cellulose http://thelivingenvironmentcheatsheet.blogspot.com/2008/04/cell-organelleshomeostasis.html

http://www.bio.miami.edu/dana/226/226F08_10print.html
Domain: Eukaryota
Kingdom: Plantae
Class:
Order:
Family:
Genus:
Species:
Ulvophyceae
Ulvales
Ulvaceae
Ulva
U. lactuca
Phylum: Chlorophyta
• Photosynthetic pigments: chlorophylls a and b
• store photosynthetic products as starch inside the doublemembrane-bounded chloroplasts in which it is produced
• Have cell walls made of cellulose (Raven et al., 1992).
http://umanitoba.ca/Biology/BIOL1020/lab2/biolab2_2.html

- Swimming cells with one or two pairs of flagella
- cell division by furrowing with mitotic spindle closed, centric and persistent
Domain: Eukaryota
Kingdom: Plantae
Phylum: Chlorophyta http://cronodon.com/BioTech/Algal_Bodies.html
- thallus can be branched or unbranched, mono- or distromatic sheet (phyllose), or cushionlike forms of compacted tubes (Algaebase,
2013)
Order:
Family:
Genus:
Species:
Ulvales
Ulvaceae
Ulva
U. lactuca http://omp.gso.uri.edu/ompweb/doee/biota/algae/chloro/ulva.htm

http://www.cavehill.uwi.edu/bio_courses/bl14apl/algaenew_green.htm
Family:
Genus:
Species:
Ulvaceae
Ulva
U. lactuca
Order: Ulvales
- pseudoparenchymatous thalloid algae
- characteristically found in marine and brackish waters
- sheetlike thallus is formed by division in two planes of a filament
- isomorphic alternation of generations in some species (Ulvales, 2013)

Domain: Eukaryota
Kingdom: Plantae
Phylum:
Class:
Order:
Chlorophyta
Ulvophyceae
Ulvales
Genus:
Species:
Ulva
U. lactuca
Family: Ulvaceae
-thin flat or tubular green algae (Family Ulvaceae,
2013) http://www.horta.uac.pt/species/algae/Ulva_lactuca/Ulva_lactuca.htm

Domain: Eukaryota
Kingdom: Plantae
Phylum:
Class:
Order:
Family:
Chlorophyta
Ulvophyceae
Ulvales
Ulvaceae
Species: U. lactuca
Genus: Ulva
-green seaweed having a thallus two cells thick
(Family Ulva, 2013) http://omp.gso.uri.edu/ompweb/doee/biota/algae/chloro/ulva.htm

Domain: Eukaryota
Kingdom: Plantae
Phylum:
Class:
Order:
Family:
Genus:
Chlorophyta
Ulvophyceae
Ulvales
Ulvaceae
Ulva
Species: U. lactuca
thallus consists of large expanded sheet two cells in thickness
- margin of thallus ruffled and wavy and folded
- cross section of the thallus shows that the cells are isodiametric or vertically elongated to the thallus surface
- Inconspicuous, disc-shaped holdfast
(Ulva lactuca (a), 2013)

http://www.algaebase.org/search/species/detail/?species_id=39

• Marine / brackish
• Estuaries / mangroves
• Flourishes in high nutrient conditions

http://ocean.si.edu/mangroves

http://www.naturefoundationsxm.org/education/mangroves/red_mangrove.htm

• Green
• Flat blade
• Two cell layers thick
• Sporophyte and gametophyte look the same
(isomorphic) http://omp.gso.uri.edu/ompweb/doee/biota/algae/chloro/ulva.htm
http://www.cryptogamicbotany.com/images/oa_chloro/ulva_lactuca_01_05_09_a_324x550.jpg

• Iso morph ic
Alternation of
Generations: gametophytes sporophytes have the same form
• Aniso gamous : gametes of unequal size http://cronodon.com/BioTech/Algal_Bodies.html

Lots of common names:
• green laver (Eng)
• sea lettuce (Eng)
• meerlattich (Ger)
• laitue de mer (Fr)
(Species Detail, 2013)
• Glasán (Irish)
(Ulva lactuca (b), 2013)

Likes lots of Nitrogen
• Grows all over the world in areas where freshwater runoff brings nitrogen into the marine environment http://ian.umces.edu/imagelibrary/displayimage-1675.html

Edible!
• Soups
• Salads
• Toasted http://flora.coa.gov.tw/view_eng.php?id=309

Sea Lettuce Soup Toasted Sea Lettuce
• 4 cups chicken stock
• 2 sheets Ulva
• 2 eggs
• Salt and pepper
• ½ tsp sesame oil
• 1 or 2 green scallions
• Bring stock to a boil. Add sea lettuce and stir. When sea lettuce is soft, stir in well- beaten eggs and boil for a few seconds then remove from heat.
Add salt and pepper to taste. Add sesame oil, garnish with onion, and serve. (Deane, 2013)
• 6 sheets Ulva
• ½ tsp Salt
• 1 ½ tablespoon sesame oil
• Mix salt and sesame oil and rub a thin coat on sea lettuce. Lay 6 sheets on top of one another, roll them up and let them marinade for 5 minutes. Unroll and cook each sheet separately in a hot pan over low heat until crisp. Cut sheet into smaller pieces and serve with hot rice.

Algaebase. (2013). Taxonomy Detail : Class Ulvophyceae. Retrieved January 3, 2013, from http://www.algaebase.org/browse/taxonomy/detail/?taxonid=4357&sk=0
Eukaryotes. (2013) Tree of Life Web Project . Web. 2 Jan. 2013. <http://tolweb.org/Eukaryotes/3>.
Family Ulvaceae . (2013) Dictionary, Encyclopedia and Thesaurus - The Free Dictionary. Web. 3 Jan.
2013. <http://www.thefreedictionary.com/family
Genus Ulva (2013) Dictionary, Encyclopedia and Thesaurus - The Free Dictionary. Web. 3 Jan. 2013.
<http://www.thefreedictionary.com/genus+
Raven (1992)
Deane, G. (2013) Sea Lettuce, Ulva. Eat The Weeds and other things, too . Web. 3 Jan. 2013.
<http://www.eattheweeds.com/ulva-sea-soup-salad-2/>.
Species Detail : Ulva lactuca. (2013) Algaebase :Listing the World's Algae. Web. 3 Jan. 2013.
<http://www.algaebase.org/search/species/detail/?species_id=39>.
Ulva lactuca (a) . (2013) Seaweeds of the Central West Coast of India. Web. 3 Jan. 2013.
<http://niobioinformatics.in/seaweed/system_Ulva%20lactuca.htm>
Ulva lactuca (b). (2013) The Seaweed Site : information on marine macroalgae. Web. 3 Jan. 2013.
<http://www.seaweed.ie/descriptions/Ulva>
Ulvales (2013).
Dictionary of botany . Retrieved January 3, 2013, from http://botanydictionary.org/ulvales.html