Opuscula Philolichenum, 6: 1-XXXX
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Opuscula Philolichenum, 8: 59-66. 2010. H. E. Hasse, Lichenist 1 KERRY KNUDSEN ABSTRACT. – A short biography of the American lichenologist Hermann Edward Hasse (January 12, 1836-October 29, 1915) is presented. Hasse, who worked mainly in southern California corresponded frequently with Professor William Gilson Farlow and the lichenologist George Knox Merrill about his findings. Some of his letters are preserved in the Archives of the Farlow Herbarium of Cryptogamic Botany. Hasse’s relationship with Farlow and Merrill is discussed based on these remaining letters. KEYWORDS. – California (history), Farlow Herbarium, Lichenology (history), Sullivant Moss Society. H.E. HASSE: A SHORT BIOGRAPHY Hermann Edward Hasse (January 12, 1836-October 29, 1915) (Fig. 1) was a lichenologist who collected for about 35 years primarily in southern California. Figure 1 shows Hasse in his uniform from the Civil War; the picture was probably taken on a Veteran’s day at the Old Soldier’s Home when the survivors donned their uniforms for the annual celebration. He published the historic Lichen flora of southern California (1913) covering approximately 400 taxa, as well as 30 other papers and notes on lichens (Fink 1916) including the earlier Lichens of Southern California (1898), an 18-page checklist of 307 lichens. Many of his papers were published in The Bryologist. Hasse was born in Freiburg, Germany, on January 12, 1836. His parents migrated to Milwaukee, Wisconsin, when he was 9 years old. “The father, Judge Carl E. Hasse, brought with him a fine library, and the boy grew up in an atmosphere of intelligence” (Plitt 1916). He received his education in public schools. At the age of 19 Hasse became fascinated by botany when he began to work for a druggist “‘a thorough chemist and botanist, to whose instruction,’ he said he owed ‘the predilection for the latter science’” (Fink 1916). Hasse decided to become a surgeon and attended medical school in St. Louis. “Graduating at the medical school at the age of 21, he continued his studies in Europe. He studied at the University of Leipzig, Germany, from 1857 to 1860, then at Prague, Bohemia, and at the University of Würzburg, Germany, where the degree of Doctor of Medicine was conferred upon him in 1861” (Plitt 1916). Hasse returned to Wisconsin in 1861 and served as a surgeon to the 9th and the 24th Wisconsin Infantry Regiments during the Civil War. “Throughout the war, he carried a copy of the 1857 edition of Gray’s Manual (of Botany), which he kept to his last days as a cherished souvenir, well filled with annotations about plants observed” (Fink 1916). It was in “1880 that he began collecting a herbarium. This herbarium he sold later to Columbia University, just prior to his specializing in Lichens” (Plitt 1916). He maintained an interest in vascular plants even after the study of lichens. In honor of his love of the California vascular flora four plants were named after him: Carex hassei L.H. Bailey, Dudleya virens ssp. hassei (Rose) Moran, Lycium brevipes var. hassei (Greene) C.L. Hitchc., and Vicia hassei S. Watson. After the Civil War, Hasse practiced medicine in Wisconsin, Arkansas and Missouri. He moved to Los Angeles, California, in 1879 at the age of 43 (Fink 1916). In 1888 he became chief surgeon of the Soldier’s Home near Santa Monica, California, a hospital and retirement facility for veterans of the Civil War (Fig. 2). Hasse told Bruce Fink in one of his letters, "I took up with lichens about 1880. But the real incentive was given about 1890, by a circular from the late Doctor Stizenberger, in which he desired contributions of Pacific Coast lichens" (Fink 1916). In 1895, at the age of 59, Hasse published his first 1 KERRY KNUDSEN — Herbarium, Department of Botany and Plant Sciences, University of California, River- side, CA 92521, U.S.A. – e–mail: [email protected] 59 Figure 1. H.E. Hasse (left reprinted from Mycologia 8(5): 242. 1916; right reprinted from Bryologist 19(2): 31. 1916). paper Lichens of the vicinity of Los Angeles I (Hasse 1895). It was a list of 90 lichens with habitat data in which he published the descriptions of Rinodina angelica Stizenb. and Verrucaria plumbaria Stizenb. by Stizenberger. Soon after its publication he began corresponding with Bruce Fink, who was a leading North American lichenologist, Professor of Botany and a member of the Sullivant Moss Society, who served at Miami University of Ohio, at the University of Minnesota, and lastly at University of Michigan and compiled the first lichen flora of North America, as well as a flora of Minnesota. They continued their correspondence until Hasse’s death (Fink 1916). Hasse spent much time in the field, visiting the hills and canyons of the Santa Monica Mountains regularly as well as Santa Catalina Island, Palm Springs, the Lake Elsinore area, and the San Jacinto, San Gabriel, and San Bernardino Mountains, even Inyo County in central California, exploring on foot and horseback. His collecting routes appear to show a fondness for completing a long day in the field with a therapeutic soak in mineral springs at Murrieta, Matilija Canyon, Eden Hot Springs, or Palm Springs (which rivaled in esteem Baden-Baden and Evian for its water quality). “His repeated visits to out-of-the- way haunts resulted in establishing a friendship with many a recluse, an isolated fisherman, or a lonely shepherd” (Plitt 1916). And no doubt he did some doctoring. One of his specimens I saw was rolled in a letter from a man thanking him for curing a long-suffering complaint of the bowels. It’s impossible to know how many lichen collections Hasse made. He filed his lichens by lot number in which he placed specimens he thought were the same taxon even if collected at different times and sometimes different sites (Hasse 1896a; Fig. 3). He changed numbers on packets sometimes when he changed identifications. He had eventually over three thousand lot numbers, before he stopped writing them on his labels. Based on my estimate of the number of specimens at New York Botanical Garden (NY) and Farlow Herbarium (FH), he collected over 6,000 individual specimens. 60 Figure 2. Postcard view of Old Soldier’s Home, Santa Monica, California. Hasse began corresponding with William Gilson Farlow in 1895. Farlow was at that time Professor of Cryptogamic Botany at Harvard. Hasse got a set of diagnoses back from Farlow on lost letters dated January 15 and 25, 1896 (Hasse 1896a; Fig. 3). Hasse told Fink (1916): “Professor Farlow has, with great kindness, helped me out, but I am fearful of encroaching too much upon his time.” In 1896 he published Lichens of the vicinity of Los Angeles IV, reporting 17 lichens identified by Farlow (Hasse 1896c). During this period he began corresponding with the Finnish lichenologist William Nylander. In 1897, Hasse published New species of lichens from Southern California as determined by Dr. W. Nylander and the late Dr. Stizenberger (Hasse 1897). Stizenberger had died the year before. In the publication about the new species from southern California he published the first species descriptions sent to him by Nylander. Around the time of the sudden death of Nylander at his work table in Paris in 1899, Hasse began corresponding with the Austrian lichenologist Alexander Zahlbruckner and sending him specimens. Zahlbruckner actually published a number of species from California collected by Hasse (Zahlbruckner 1900, 1902). “The three European lichenists frequently sent the names of new species with very brief diagnostic notes or none at all. In some instances descriptions were written later by themselves, or perhaps more often by Doctor Hasse as we infer from his statements in letters to the present writer” (Fink 1916). Today many important Hasse types and specimens are in the Stizenberger herbarium (ZT), the Nylander herbarium (H-NYL), and the Zahlbruckner herbarium (W). Hasse also sent some specimens to Bouly de Lesdain (Hasse 1906b). The French lichenologist eventually described Thelocarpon hassei B. de Lesd. from a Hasse collection from the San Jacinto Mountains (de Lesdain 1930). Any of Hasse’s specimens in de Lesdain’s herbarium, including the type of T. hassei, would have been destroyed in the bombing of Dunkirk in World War II. Hasse published the first important papers on the lichens of the Channel Islands of California: The lichen flora of San Clemente Island, a list of 22 lichens with habitats (Hasse 1903a) and Contributions to the lichen flora of the California Coast Islands, comprised of two lists containing over 100 lichens with localities (Hasse 1903b). He was in contact with the famous island botanist Blanche Trask and several lichens collected by her were included in his herbarium and are now in the Farlow Herbarium. In 1905, at the age of 69, Hasse retired from the Old Soldier’s Home and devoted the rest of his life to the study of lichenology. In those days before Social Security, his retirement was probably financed by the sale of part of his private lichen herbarium. In 1906, John I. Kane presented to the New York 61 Figure 3. Letter from Hasse to Farlow preserved in the Archives of the Farlow Herbarium of Cryptogamic Botany. 62 Botanical Garden about 3,000 specimens and many duplicates from Hasse’s herbarium (Fink 1916). Until his death, Hasse was regularly in the field, especially in the Santa Monica Mountains, and even visited Arizona. He continued to collect regularly in the field. “He became a member of the Sullivant Moss Society in 1905; in 1913 he became curator of the Society’s Lichen Herbarium. During the three years while he was its curator 1120 additional specimens were added to the herbarium; of this number 397 are from Southern California, collected by Doctor Hasse himself” (Plitt 1916).