50.490 Prasiola Crispa

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Prasiola crispa 50.490 (Lightfoot) Meneghini MICRO foliose PLANT Techniques needed and plant shape Classification Phylum: Chlorophyta; Order:Prasiolales (Schizogonales); Family: Prasiolaceae *Descriptive name guano-blades (referring to the usual habitat in bird colonies). Common name: Oka-nori Features plants green-brown of small cup-shaped or crinkled blades 1-2mm across, forming dark masses Variations blades may be partly cyst-shaped (vesicular) Special requirements view microscopically the small box-shaped cells in irregular groupings or packets each with a single central chloroplast (sometimes star-shaped) and single pyrenoid Occurrences N Europe, Antarctic, sub-Antarctic regions, Tasmania Usual Habitat on rock well above high tide-mark, in bird colonies Similar Species large plants are similar to Enteromorpha or immature Ulva, but are a single cell thick. The single central chloroplast (sometimes star-shaped) separates Prasiola from cells of Ulvales Description in the Benthic Flora Part I, pages 163,165 Details of Anatomy 2. 1. 3. Prasiola crispa stained blue and viewed microscopically at different magnifications 1. part of a blade about 2mm wide, showing the folds and crinkles especially at the edges (slide 7620) 2, 3. details of box-shaped cells of, in irregular packets (#2: slide 7818; #3 slide 7620) * Descriptive names are inventions to aid identification, and are not commonly used “Algae Revealed” R N Baldock, S Australian State Herbarium, October 2003 Prasiola crispa(Lightfoot) Meneghini (A53837) from Lady Bay, Southport, Tasmania, in a bird roosting area,on rock, 3-4m above high tide, in spray * Descriptive names are inventions to aid identification, and are not commonly used “Algae Revealed” R N Baldock, S Australian State Herbarium, October 2003 .

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