David Leslie Hawksworth is a British mycologist and lichen

Lichen

Lichens are composite organisms consisting of a symbiotic organism composed of a fungus with a photosynthetic partner , usually either a green alga or cyanobacterium...

ologist currently with a professorship in the Universidad Complutense de Madrid in Madrid

Madrid

Madrid is the capital and largest city of Spain. The population of the city is roughly 3.3 million and the entire population of the Madrid metropolitan area is calculated to be 6.271 million. It is the third largest city in the European Union, after London and Berlin, and its metropolitan...

, Spain

Spain

Spain , officially the Kingdom of Spain languages]] under the European Charter for Regional or Minority Languages. In each of these, Spain's official name is as follows:;;;;;;), is a country and member state of the European Union located in southwestern Europe on the Iberian Peninsula...

 and also a Scientific Associate of The Natural History Museum in London. In 2002, he was honoured with an Acharius Medal

Acharius Medal

The Acharius Medal is awarded for lifetime achievement in lichenology.The first Acharius Medal was made by the Royal Swedish Mint for the Royal Swedish Academy of Science in 1846, although the medal's original purpose has not been recorded...

 by the International Association for Lichenology. He married Patricia Wiltshire, a leading forensic ecologist

Forensic biology

Forensic biology is the application of biology to law enforcement.It includes the subdisciplines of Forensic anthropology, Forensic botany, Forensic entomology, Forensic odontology and various DNA or protein based techniques.- Applications :...

 and palynologist in 2009.