ðə dʒˈɛnəs ɪz mˌɑːnoʊtˈɪpɪk wɪð ɐ lˈoʊn spˈiːsiːz nˈoʊɾɪˌɑːθɔːmɚ ɹˈiːdi wˌɪtʃ ɪz nˈeɪɾɪv tə ðə vældˈɪviən tˈɛmpɚɹət ɹˈeɪn fˈɔːɹɪsts ʌv sˈɛntɹəl tʃˈɪli, ɪspˈɛʃəli ðə fˈɔːɹɪsts wɪð nˈɑːθəfˌæɡəs stˈændz.
The genus is monotypic with a lone species Notiothauma reedi which is native to the Valdivian temperate rain forests of central Chile, especially the forests with Nothofagus stands.