Co's education in Botany did not follow the usual track. He did not finish his bachelor's degree until 2008 because he was always too busy doing research out in the field.
Dr. Perry Ong, director of the Institute of Biology at the
University of the Philippines Diliman summed it up at Co's
wake by saying "Leonard Co entered UP as botany freshman in the early 70s and never left". While practicing
acupuncture he met his wife Glenda Flores, whom he married on June 12, 1990. In 2008, with Co already informally considered one of the foremost experts in his field,
University of the Philippines Diliman named him the last graduate of the BS degree in Botany; some time in the decades since Co's enrollment, the course had been merged with the bachelor's degree in
Zoology to form the
Biology program. This unorthodox academic path also earned Co another distinction in the annals of UP: Co submitted his book on the medicinal plants of the Cordilleras in lieu of a thesis, making him the only student to graduate from the BS Botany degree without submitting a thesis. Co worked as a museum researcher at the University of the Philippines Institute of Biology, and as a senior botanist at the
Conservation International-Philippines. ==Career==