Complex sentence: Dr. Robert F. Thorne (July 13,1920-March 24 2015) was an American botanist and currently Taxonomist and Curator Emeritus at Rancho Santa Ana Botanic Garden and Professor Emeritus at Claremont Graduate University in Claremont, California.
Split into simpler sentences: Dr. Robert F. Thorne (July 13,1920-March 24 2015) was an American botanist. He was Taxonomist and Curator Emeritus at Rancho Santa Ana Botanic Garden and Professor Emeritus at Claremont Graduate University in Claremont, California.