Pierre Viala
Pierre Viala (24 September 1859 in Lavérune – 11 February 1936) was a French scientist. In 1901–1910 he and Victor Vermorel published Ampélographie. Traité général de viticulture, a seven-volume ampelography of 3,200 pages describing 5,200 grape varieties. He has been honoured in the naming of 2 taxa of fungi; 
Vialaea by Pier Andrea Saccardo in 1896 (Vialaeaceae family)
Vialina by Mario Curzi in 1935, which is now a synonym of Phoma . References

1859 births
1936 deaths
People from Hérault
Democratic Republican Alliance politicians
Members of the 12th Chamber of Deputies of the French Third Republic
Members of Parliament for Hérault
19th-century French botanists
20th-century French botanists
French viticulturists
Members of the French Academy of Sciences