I think it's that they are filamentous - their cells are arranged as "chains," attached end to end. But I'm not positive.
http://wiki.answers.com/Q/How_is_Spirogyra_morphologica...
(4) How dou you think Spirogyra reproduces asexually? (5) How is Cladophora morphologically similar to Spirogyra? How is it different? What is the shape of its chloroplasts? Any help in these is appreciated. Thank You.
en.allexperts.com/q/Biology-664/biology-235.htm
The Cell Wall is very similar to that of terrestrial plants because its main components are Cellulose & Pectins. ... Spirogyra has spiral Chloroplasts ... ; Cladophora has many small oval Chloroplasts...
www.botany.hawaii.edu/faculty/webb/BOT311/Chlorophyta/c... www.botany.hawaii.edu/faculty/webb/BOT311/Chlorophyta/chlorophyta.htm
haplodiplontic = both haploid (gametophyte) & diploid (sporophyte) free-living stages (also called alternation of generations), either morphologically similar (isomorphic) or different (heteromorphic); ... FW examples are Cladophora (branched; also marine), Rhizoclonium (unbranched, also marine),
www.okstate.edu/artsci/biol3253/BOT4213/algae.htm
Part 2- Filamentous Green Algae: Spirogyra and Cladophora ... is much more similar to animals in its life cycle than that of plants, fungi or many protists. The mature thallus is diploid, and the cells within the structure undergo meiosis, producing gametes. The multicellular haploid stage is not present in the lifecycle...
www.und.nodak.edu/dept/jcarmich/102lab/labshtml/algae.h... www.und.nodak.edu/dept/jcarmich/102lab/labshtml/algae.html
Oogamy - Wikipedia, the free encyclopedia
Oogamy is a form of anisogamy (heterogamy) in which the female gamete (e.g. egg cell) is significantly larger than the male gamete and is non-motile. The male gametes are typically highly motile sper...
en.wikipedia.org/wiki/Oogamy
Lab #9 Plant Diversity; [back] ... ; PLANT EVOLUTION & ALTERATION OF GENERATIONS; Alteration of Generations (Figure 29.2); Each plant spends part of its life in a haploid stage and part in a diploid stage: 1. Gametophyte generation: Haploid portion of the life cycle because it gives rise to haploid gametes ... 2. Sporophyte generation:
www.msu.edu/~mille985/plant1.html
The river in this area is similar to Marble Canyon. The lower granite gorge be-gins at approximately river mile 215 and extends downstream to river mile 240. ... Waterweed (a Baccharis), morphologically and ecologi-cally similar to desert broom, is common. Apache plume is a dominant evergreen shrub.
media.wiley.com/product_data/excerpt/88/04713034/047130... media.wiley.com/product_data/excerpt/88/04713034/0471303488.pdf
Morphologically, females and immature males are very similar to O.karongae: ... (1991a) found that the diet of adult (>17cmSL) and juvenile chambo at Cape Maclear were dominated by filamentous green algae (Mougeotia), but juveniles ate more attached benthic filamentous species, such as Calothrix, Cladophora and Spirogyra.
www.fao.org/docrep/006/AD202E/AD202E01.htm
Morphologically, the species shows little variation between locations (Turner, ... (1991a) found that the diet of adult (>17cm SL) and juvenile chambo at Cape Maclear were dominated by filamentous green algae (Mougeotia), but juveniles ate more attached benthic filamentous species, such as Calothrix, Cladophora and Spirogyra.
www.fao.org/docrep/005/T0783E/T0783E04.htm