Henry Robert Nicollon des Abbayes (15 July 1898 – 21 May 1974) was a French

botanist Botany, also called plant science, is the branch of natural science and biology studying plants, especially Plant anatomy, their anatomy, Plant taxonomy, taxonomy, and Plant ecology, ecology. A botanist or plant scientist is a scientist who s ...

and lichenologist. He was the chair of the Botanical Department of the

University of Rennes The University of Rennes (French: ''Université de Rennes'') is a public university, public research university located in Rennes, Upper Brittany, France. Originally founded in 1460, the university was split into two universities in 1970: Univers ...

and an expert on the

flora of Great Britain The flora of Great Britain and Ireland is one of the best documented in the world. There are 1390 native species and over 1100 well-established non-natives documented on the islands. A bibliographic database of the species has been compiled by the ...

. H.R.N. des Abbayes was editor of four

exsiccata Exsiccata (Latin, ''gen.'' -ae, ''plur.'' -ae) is a work with "published, uniform, numbered set of preserved specimens distributed with printed labels". Typically, exsiccatae are numbered collections of dried herbarium Biological specimen, spe ...

series distributing lichen reference specimens among

herbaria A herbarium (plural: herbaria) is a collection of preserved plant specimens and associated data used for scientific study. The specimens may be whole plants or plant parts; these will usually be in dried form mounted on a sheet of paper (called ...

.Triebel, D. & Scholz, P. 2001–2024 ''IndExs – Index of Exsiccatae''. – Botanische Staatssammlung München: http://indexs.botanischestaatssammlung.de. – München, Germany. In 1929 he started the first of these works devoted to lichens of

Armorica In ancient times, Armorica or Aremorica (Gaulish: ; ; ) was a region of Gaul between the Seine and the Loire that includes the Brittany Peninsula, and much of historical Normandy. Name The name ''Armorica'' is a Latinized form of the Gauli ...

with the title ''Lichenes Armoricani spectabiles exsiccati''.

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from the Lichen Herbarium of the University of Rennes * Lichen Herbarium "Prof. des Abbayes" in Rennes 1898 births 1974 deaths 20th-century French botanists French lichenologists Academic staff of the University of Rennes {{France-scientist-stub