Marie Maxime Cornu was a French botanist and mycologist. He was a younger brother to physicist

Physicist

A physicist is a scientist who studies or practices physics. Physicists study a wide range of physical phenomena in many branches of physics spanning all length scales: from sub-atomic particles of which all ordinary matter is made to the behavior of the material Universe as a whole...

 Alfred Cornu (1841-1902).

Cornu was a lecturer at the Museum National d'Histoire Naturelle

Muséum national d'histoire naturelle

The Muséum national d'Histoire naturelle is the National Museum of Natural History in Paris, France.- History :The museum was formally founded on 10 June 1793, during the French Revolution...

in Paris

Paris

Paris is the capital and largest city in France, situated on the river Seine, in northern France, at the heart of the Île-de-France region...

, and from 1884 to 1901 was chair of horticulture

Horticulture

Horticulture is the industry and science of plant cultivation including the process of preparing soil for the planting of seeds, tubers, or cuttings. Horticulturists work and conduct research in the disciplines of plant propagation and cultivation, crop production, plant breeding and genetic...

 at the museum. He is remembered for his research of cryptogams

Cryptogams

The name cryptogams is used fairly widely as a phrase of convenience, although regarded as an obsolete taxonomic term. A cryptogam is a plant that reproduces by spores...

 and agents of plant diseases, particularly phylloxera vastatrix, a pest that caused extensive damage to French vineyards and wine-production.

Selected publications

• Études sur la nouvelle maladie de la vigne, 1875
• Études sur le phylloxera vastatrix, 1878
• Note sur quelques Champignons de la flore de France, 1880