Hermann Edward Hasse (12 January 1836 – 29 October 1915) was an American lichenologist.H. E. Hasse, Lichenist, Kerry Knudsen, Opuscula Philolichenum, 8: 59-66. 2010

/ref> He wrote two important texts and numerous articles in his field.Lecidea hassei, Consortium of North American Lichen Herbaria
/ref> ''

Hassea ''Hassea'' is a genus of fungi in the class Dothideomycetes. The relationship of this taxon to other taxa within the class is unknown ('' incertae sedis''). A monotypic genus, it contains the single species ''Hassea bacillosa''. The genus nam ...

'', which is a

genus Genus ( plural genera ) is a taxonomic rank used in the biological classification of living and fossil organisms as well as viruses. In the hierarchy of biological classification, genus comes above species and below family. In binomial n ...

fungi A fungus (plural, : fungi or funguses) is any member of the group of Eukaryote, eukaryotic organisms that includes microorganisms such as yeasts and Mold (fungus), molds, as well as the more familiar mushrooms. These organisms are classified ...

in the class

Dothideomycetes Dothideomycetes is the largest and most diverse class of ascomycete fungi. It comprises 11 orders 90 families, 1300 genera and over 19,000 known species. Traditionally, most of its members were included in the loculoascomycetes, which is not p ...

, and ''

Lecidea hassei ''Lecidea hassei'' (Hasse's lecidea lichen) is an endolithic lichen that appears as tiny black, gray rimmed, plate-like or crinkled discs between crystals of rock in California. The main body grows ''inside'' solid rock (endolithic), and the c ...

'', a lichen that grows inside solid rock (

endolithic lichen An endolithic lichen is a crustose lichen that grows inside solid rock, growing between the grains, with only the fruiting bodies exposed to the air.Lichen Vocabulary, LICHENS OF NORTH AMERICA, Sylvia and Stephen Sharnoff An example is ''Caloplaca l ...

), were both named in his honor. He principally did his research in southern California. His correspondents included cryptogamic botanist

William Gilson Farlow William Gilson Farlow (December 17, 1844 – June 3, 1919) was an American botanist, born in Boston, Massachusetts, and educated at Harvard (A.B., 1866; M.D., 1870), where, after several years of European study, he became adjunct professor of ...

and lichenologist

George Knox Merrill George Knox Merrill (16 October 1864 –21 October 1927) was an American lichenologist. He was a leading exponent of lichenology in the early 20th century. He was particularly interested in species of the family Cladoniaceae, in which he publishe ...

Publications

In 1913, Hasse published ''The Lichen Flora Of Southern California'', a

flora Flora (: floras or florae) is all the plant life present in a particular region or time, generally the naturally occurring (indigenous (ecology), indigenous) native plant, native plants. The corresponding term for animals is ''fauna'', and for f ...

of the lichens of southern

California California is a state in the Western United States, located along the Pacific Coast. With nearly 39.2million residents across a total area of approximately , it is the most populous U.S. state and the 3rd largest by area. It is also the ...

covering about 400

taxa In biology, a taxon ( back-formation from '' taxonomy''; plural taxa) is a group of one or more populations of an organism or organisms seen by taxonomists to form a unit. Although neither is required, a taxon is usually known by a particular n ...

. Lichenologist Kerry Knudsen described it as "historic" in the lichenology journal '' Opuscula Philolichenum''., written by Hermann Edward Hasse. He also wrote the earlier ''Lichens of Southern California'', published in 1898, and 30 other papers and notes on lichens, many published in ''

The Bryologist ''The Bryologist'' is a peer reviewed scientific journal specializing in bryology. It is published quarterly by the American Bryological and Lichenological Society (ABLS). It began as a department of '' The Fern Bulletin'' devoted to the study o ...

''.

References

External sources

*Letters, Archives of the

Farlow Herbarium of Cryptogamic Botany The Farlow Herbarium of Cryptogamic Botany is an herbarium and library at Harvard University with about 1,400,000 specimens, including approximately 75,000 types, of lichens, fungi, bryophytes, diatoms, and algae.Farlow Herbarium, Harvard University ...

1836 births 1915 deaths American lichenologists {{mycologist-stub