Harvey's four divisions are: red algae (Rhodospermae), brown algae (Melanospermae), green algae (Chlorospermae), and Diatomaceae.
hˈɑːɹviz fˈoːɹ dᵻvˈɪʒənz ɑːɹ: ɹˈɛd ˈælɡiː ɹˈoʊdəspɚmˌiː, bɹˈaʊn ˈælɡiː mˈɛlɐnˌɑːspɚmˌiː, ɡɹˈiːn ˈælɡiː klˌoːɹoʊspɚmˈiː, ænd dˈaɪətˌɑːmeɪsˌiː.