M. O. P. Iyengar

Mandayam Osuri Parthasarathy Iyengar (15 December 1886 – 10 December 1963) was a prominent Indian botanist and phycologist who researched the structure, cytology, reproduction and taxonomy of algae.

After studies at the Hindu High School, he went to Presidency College, obtaining a BA degree in 1906 and an MA in 1909.

He then became a curator in the Government Museum at Madras and became a lecturer in the Teacher's College in 1911.

He became a professor of botany in the Presidency College in 1920 and worked on algae aside from teaching.

Fritsch at the Queen Mary College from where he received a PhD.