An Introduction to the Study of Algae

algae algal antheridia antherozoids apex apical cell aplanospores appear arise Ascophyllum asexual assimilation auxiliary cell basal biflagellate carpogonial branch carpogonium carpospores cell wall Chlorophyceae chloroplast colony colour composed conceptacles cortex cortical Cyanophyceae cycle develop diatoms Dictyota dioecious diploid divide division Enteromorpha epiphytes factors fertilization filaments flagellae flora formation Fritsch fronds Fucales Fucus serratus Fucus vesiculosus fusion gametes gametophyte gelatinous genera genus germinate give rise growing growth hairs haploid Kylin Laminaria later Laurencia layer mature means megasporangium meiosis morphologically motile mucilage normal nuclei occur Oltmanns oogonia oogonium organs Pelvetia Phaeophyceae phyceae plants plurilocular sporangia Porphyra portion possess primitive produced protoplasmic pyrenoids rhizoids Rhodophyceae salt marshes Sexual reproduction sheath soil species sporangia sporangium spores sporophyte stage stalk sterile stipe structure substrate swarmers takes place temperature tetraspores thallus threads Ulothrix unilocular sporangia vegetative vesicle whilst zone zooids zoospores zygote