
kwadragula

celenastracy kudumbatthile pacha aalgakalude oru janussaanu kwadrigula. shudhajala aavaasavyavasthakalil phaittoplanktan enna perilaanu ithu saadhaaranayaayi kaanappedunnath.
vivaranam.
"kwadrigula" oru saadhaarana musilaginus kavarinullil rund, naalu allengil koshangalude kolanikal roopappeduthunnu. sigar aakruthiyilulla, 7 muthal 45 micrometer vare neelavum 1 muthal 8 micrometer vare veethiyumulla koshangalaan. koshangalude neelamulla achuthandukal parasparam samaantharamaayi nilkkunna tharatthilaanu koshangal koottiyirikkunnathu. koshangalude agrangal vrithaakruthiyilullatho theekshnamaayatho aanu. koshangalil orotta nucleus oru paariyettal chloroplastum adangiyirikkunnu; chloroplastil oru pyrinoid adangiyirikkaam allengil illaayirikkaam.
jeevajaalangalude thirichariyal koshatthinte valippathinteyum aakruthiyudeyum vishadaamshangale aasrayichirikkunnu.

