The Haptophytes Single-cells with two equal, smooth flagella with a 'Haptonema' between. Coccoliths Coccolithophorids Prymnesiophyte order of species with calcified coccolith scales. Coccolithophorid which blooms off the coast of France. Walls consist of 2 overlapping halves. Pronounced cytoplasmic streaming moves nuclei and mitochondria about.
Chloroplasts move in relation to light.
Each parent valve becomes the daughter's epitheca, a new hypotheca is added. Each cell division results in one daughter cell the same size and one slightly smaller. Resting Spores Auxospores Resting Spores Vegetative cells may also form 'Resting Spores' by contracting the protoplasm and forming a thick silica wall which settles to bottom, Formed to holdover cells during unfavorable conditions. Sexual Reproduction Auxospores formed by fusion of two gametes. Send e-mail to Dr. Fritz Click here to Return to BIO 410 Home Page.