Tyge W. Böcher

Tyge Wittrock Böcher (25 October 1909 – 15 March 1983) was a Danish botanist, evolutionary biologist, plant ecologist and phytogeographer.

Professor Böcher guiding students on a rainy excursion

He was born in Copenhagen to physician Einar Böcher and wife Cathinca née Andersen. Steen B. Böcher, professor of geography, was his brother.

Tyge Böcher was professor of botany at the University of Copenhagen from 1954 to 1979. He was a prolific scientific writer, leaving some 250 scholarly books and articles. His scientific research covered as diverse phylogenetic lineages as vascular plants, bryophytes, lichens and algae and a broad set of disciplines from anatomy, ecology and evolution of plant species to the ecology of plant populations and plant communities. He was particularly interested in chromosomal and ecological races of plant species. He did field work in Greenland, Denmark, various European mountain regions and in Argentina. His investigation of the Greenland flora were particularly ground-breaking.

He was a co-founder of Flora Europaea and he authored the Flora of Greenland (1968).

The genus Boechera Á.Löve & D.Löve is named after him.

Scientific works by T.W. Böcher

1932-1935

1936-1939

1940-1944

1945-1949
  • Beiträge zur Pflanzengeographie und Ökologie Dänischer Vegetation. II. Über die Waldsaum- und Graskrautgesellschaften trockener und halbtrockener Böden der Insel Seeland mit besonderer Berücksichtigung der Strandabhänge und Strandebenen. Biologiske Skrifter / Kongelige Danske Videnskabernes Selskab 4, 1: 1-163. 1945.
  • Meiosis in Anemone apennina with special reference to chiasma localisation. Hereditas 31: 221-237. 1945.
    • Keywords: cytology
  • Ochromonas viridis sp.n., a green flagellate belonging to Chrysomonadinae. Videnskabelige meddelelser fra Dansk Naturhistorisk Forening 108: 233-238. 1945.
  • Græs-urte-vegetationen pa Høje Møn. Botanisk Tidsskrift 48: 1-45. 1946.
  • Dichothrix gelatinosa sp. n. Its structure and resting organs. Biologiske Skrifter / Kongelige Danske Videnskabernes Selskab 4, 4: 1-14. 1946.
  • Some experiments to elucidate the influence of winter conditions on shoot development and floral initiation on various races of Prunella vulgaris and Ranunculus acer. Dansk Botanisk Arkiv 12, 3: 1-16. 1946.
  • Pseudanabaena biceps, a new sapropelic species from bottom mud. Botaniska Notiser 1946: 281-284. 1946
  • Cytogenetic and biological studies in Geranium robertianum L. Biologiske Meddelelser / Kongelige Danske Videnskabernes Selskab 20, 8: 1-29. 1947.
  • Festuca polesica Zapał., its chromosome number and occurrence in Denmark. Botaniska Notiser 1947: 353-360. 1947.
    • Keywords: cytology
  • Cytological studies of Arabis holboellii Hornem. Hereditas 33: 573. 1947.
  • & T. Christensen & M.S. Christiansen. Slope and dune vegetation of North Jutland. I. Himmerland. Biologiske Skrifter / Kongelige Danske Videnskabernes Selskab 4, 4: 1-78. 1946.
  • Plant geography and plant sociology. In: The Humanities and Sciences in Denmark during the Second World War; pp. 309–312. Copenhagen 1948.
  • Contributions to the flora and plant geography of West Greenland. I. Selaginella rupestris and Sisyrinchium montanum. Meddelelser om Grønland 147, 3: 1-26. 1948.
  • Studies on the sapropelic flora of the lake Flyndersø with special reference to the Oscillatoriaceae. Biologiske Meddelelser / Kongelige Danske Videnskabernes Selskab 21, 1: 1-46. 1949.
  • The botanical expedition to West Greenland 1946. Meddelelser om Grønland 147, 1: 1-28. 1949.
  • Climate, soil and lakes in continental West Greenland in relation to plant life. Meddelelser om Grønland 147, 2: 1-63. 1949.
  • Racial divergences in Prunella vulgaris in relation to habitat and climate. New Phytologist 48: 285-314. 1949.

1950-1954

1955-1959

1960-1964

1965-1969
  • Experimental and cytological studies on plant species. IX. Some Arctic and montane Crucifers. Biologiske Skrifter / Kongelige Danske Videnskabernes Selskab 14, 7: 1-74. 1966.

Keywords: Brassicaceae

1970-1974
  • The present status of biosystematics. Taxon 19: 3-5. 1970.
  • Anatomical studies in Cotton-Thorn, Tetradymia axillaris A. Nels. Naturaliste Canad. 98: 225-250. 1971.
  • Variational pattern in Clinopodium vulgare L. In: Evolution in Plants - Symposium held 1–4 September 1970 at Tihany, Hungary, 12: 23-29. 1972.
  • Evolutionary problems in the Arctic flora. In: “Taxonomy, Phytogeography and Evolution" (edit. by D.H. Valentine), London; pp. 101–113. 1972.
  • Leaf anatomy in Sporobolus rigens (Tr.) Desv. (Gramineae). Botaniska Notiser 124: 344-360, 1972.
  • Comparative anatomy of three species of the apophyllous genus Gymnophyton. American Journal of Botany 59: 494-503. 1972.
  • & J.P. Hjerting & K. Rahn. Botanical studies in the Atuel Valley Area, Mendoza Province, Argentina. Part III. Dansk Botanisk Arkiv 22, 3: 189-358. 1972.
  • & C.A. Jørgensen. Jyske dværgbuskheder. Eksperimentelle undersøgelser af forskellige kulturindgrebs indflydelse på vegetationen. Biologiske Skrifter / Kongelige Danske Videnskabernes Selskab 19, 5: l-55. 1972.
  • & O.B. Lyshede. Anatomical studies on xerophytic apophyllous plants. II. Additional species from South American shrub steppes. Biologiske Skrifter / Kongelige Danske Videnskabernes Selskab 18, 4: 1-137. 1972.
  • Interspecific hybridization in Braya (Cruciferae). Annales Botanici Fennici 10: 57-65. 1973.
    • Keywords: Braya humilis, Braya purpurascens, speciation
  • Variation and distribution pattern in Draba sibirica (Pall.) Thell. Botaniska Notiser 127: 317-327. 1974.

1975-1979
  • Density determinations in Arctic plant communities. Phytocoenologia 2: 73-86. 1975.
  • Structure of the multinodal photosynthetic thorns in Prosopis kuntzei Harms. Biologiske Skrifter / Kongelige Danske Videnskabernes Selskab 20, 8: 1-43. 1975.
  • Experimental and cytological studies on plant species. XIII. Clinopodium vulgare L. Botanisk Tidsskrift 70: 152-179. 1975.
  • Convergence as an evolutionary process. Botanical Journal of the Linnean Society 75: 1-19. 1977.
  • Cerastium alpinum and C. arcticum - a mature polyploid complex. Botaniska Notiser 130: 303-309. 1977.
  • Ecogeographical classification of arctic vegetation based on shoots density determinations. Meddelelser om Grønland 199, 6: 1-61. 1977.
  • Experimental and cytological studies on plant species. XIV. Artificial hybridizations in Viscaria. Botanisk Tidsskrift 72: 31-44. 1977.
    • Keywords: cytology, ecotype, Lychnis alpina, Lychnis viscaria
  • Phytogeography of Greenland (Survey and methods). In: B.A. Yurtsev, The Arctic f1oristic region, papers read at the symposium "Floristic delimitation and subdivision of the Arctic", 8 Ju1y, 1975 in Leningrad; 127-142. 1978.
  • & P. Olesen. Structural and ecophysiological pattern in the xero-halophytic C4 grass, Sporobolus rigens (Tr.) Desv. Biologiske Skrifter / Kongelige Danske Videnskabernes Selskab 22, 3: 1-48. 1978.
  • Xeromorphic leaf types: Evolutionary strategies and tentative semophyletic sequences. Biologiske Skrifter / Kongelige Danske Videnskabernes Selskab 22, 8: 1-71. 1979.
  • Birch woodlands and tree growth in Southern Greenland. Holarctic Ecology 2: 218-221. 1979.

1980-1983
  • Evolutionary trends in Ericalean leaf structure. Biologiske Skrifter / Kongelige Danske Videnskabernes Selskab 23, 2: 1-64. 1981.
  • A developmental analysis of the photosynthesizing organs in Prosopis kuntzei. Biologiske Skrifter / Kongelige Danske Videnskabernes Selskab 23, 4: 1-50. 1982.
  • The allotetraploid Saxifraga nathorstii and its probable progenitors S. aizoides and S. oppositifolia. MoG Bioscience 11: 1-22. 1983.

Works on T. W. Böcher
  • Löve, Áskell (1984). "In Memoriam: Tyge W. Böcher, 1909-1983". Arctic and Alpine Research. 16 (1): 119–120. JSTOR 1551177.

References
  1. IPNI.  Böcher.
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