1878 12 250 The modern distinguishing characters of the now living species of the genera Peronospora and Pythium, as furnished by a septate or non-septate mycelium.
1998 L. Margulis & K. V. Schwartz (ed. 3) i. 98/1 This large and diverse group of eubacteria includes some that grow septate or nonseptate multicellular filaments.