Knowledge (XXG)

Kathleen Bever Blackburn

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Blackburn rode a motorcycle in the early days of motoring and later, unusually for the time, drove her own car. She went on botanical expeditions to isolated islands in the Hebrides. She appears never to have married, and seems to have lived in the family home in
806:"Kathleen Bever Blackburn (1892-1968), a botanist, received the Trail Award and Linnean Society Gold Medal in 1930 for outstanding contributions to biological microscopy. Attached is her letter of acceptance. #LinnSocFemaleFellow #celebratingourfellows" 305:. Her skills at reconstructing past vegetation using both pollen analysis and examination of larger plant fragments were utilised by archaeologists working on Hadrian's Wall and elsewhere in the North East of England. 286:. Prior to these discoveries by her and others it had not been realised that plants had sex chromosomes. The fact that X and Y sex chromosomes are actually quite rare in plants, occurring only in a minority of 898: 280:) and established that female and male flowers of these plants had X and Y sex chromosomes (Blackburn 1923, 1924). She was the first to correctly identify the Y chromosome as the larger of the two, in 165:
after a number of ministries around the United Kingdom. Kathleen Blackburn and her sister Dorothy were active members of the congregation. Their father was a noted naturalist and amateur conchologist.
220:, her head of department at Armstrong College, 1927–1946. Her first published work, in 1917, was an anatomical study of vascular tissue in seedlings of the buttercup family, 868: 297:
theory of repopulation of landscapes after glaciations. In the 1940s she became involved in researching soils and peat bogs in connection with the development of the
317:, the Northern Naturalists' Union, the University of Durham Philosophical Society and the Wallis Club (a naturalists' field club). She carried out field work in the 157:
Kathleen Bever Blackburn was born in 1892. Her middle name is sometimes incorrectly given as "Beyer". Her father, E. P. Blackburn, was a prominent minister in the
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Blackburn, K. B.; Raistrick, A. (1931). "The Late Glacial and Post-glacial Periods in the North Pennines; Part II: Possible Post-glacial Survivals in our Flora".
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species). In these, she showed that the basal number of chromosomes in the nucleus of the cells of roses is seven, that different forms of roses were in fact
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By the 1930s, Blackburn had become adept at pollen analysis, especially of grains found in peat. This led on to investigations, with others, concerning the
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She was a member of the Armstrong College Staff Dramatic Society and played parts in various plays. She gave talks outside the university, for example at
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Blackburn, K. B.; Heslop-Harrison, J. W. (1924). "A Preliminary Account of the Chromosomes and Chromosome Behaviour in the Salicaceae".
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Blackburn, K. B. (1924). "The Cytological Aspects of the Determination of Sex in the Dioecious Forms of Lychnis".
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in Cytology in 1947. She was Supervisor of Research in the Department of Botany in 1949, and retired in 1957.
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paid a glowing tribute ... had solved the well nigh insoluble riddle of cross-fertilization of the rose".
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species (in which the male and female flowers are borne on separate individuals), was known to her.
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relationships. Her work on roses made her reputation, at home and abroad. In 1924, she attended the
525:"On a Peat from the Island of Barra, Outer Hebrides: Data for the Study of Post-glacial History. X" 302: 252: 177: 739: 437: 313:
She was also an active field botanist and a member of a number of natural history societies: the
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Entomologists section of "A History of Naturalists in North East England", ed. Lunn, A. G
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Botanists section of "A History of Naturalists in North East England", ed. Lunn, A. G
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Blackburn, probably in 1926 when attending the International Botanical Congress at
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and gold medal in 1930 "for outstanding contributions to biological microscopy".
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At Newcastle, her research resulted in many papers, frequently co-authored with
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in botany at Armstrong College, Newcastle upon Tyne, in 1918, made
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From 1914 to 1916, Blackburn was a lecturer in botany at the
643:"Kathleen Bever Blackburn: A Distinguished British Botanist" 595:"Kathleen Beyer Blackburn (1892-1968), sitting in chair" 412:
Blackburn, K. B. (1923). "Sex chromosomes in plants".
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Deaths from Parkinson's disease in the United Kingdom
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Blackburn retired in 1957 and died in August 1968 of
84: 76: 61: 53: 45: 23: 349:, and wrote popular articles on botanical topics. 818:– includes photograph of her letter of acceptance 470:Blackburn, K. B.; Heslop-Harrison, J. W. (1924). 387:Blackburn, K. B.; Heslop-Harrison, J. W. (1921). 688:"Kathleen Beyer Blackburn, (1892-1968) seated" 512:Transactions of the Northern Naturalists Union 8: 121:. Her principal contributions were in plant 113:best remembered for the 1923 discovery that 725: 723: 229:Papers in 1921, 1924 and 1925 explored the 31: 20: 567: 540: 487: 869:Fellows of the Linnean Society of London 361:, which had started before she retired. 636: 634: 632: 630: 628: 583: 476:British Journal of Experimental Biology 371:Fellow of the Linnean Society of London 732:"Obituaries: Kathleen Bever Blackburn" 626: 624: 622: 620: 618: 616: 614: 612: 610: 608: 499:British Journal of Experimental Botany 315:Natural History Society of Northumbria 589: 587: 274:She then studied the campions (genus 7: 145:(later renamed King's College, now 57:August 1968 (aged 75–76) 569:10.1111/j.1469-8137.1952.tb06145.x 542:10.1111/j.1469-8137.1946.tb05045.x 463:10.1093/oxfordjournals.aob.a089900 405:10.1093/oxfordjournals.aob.a089753 373:(FLS) by 1927. She received their 176:, from which she graduated with a 14: 874:Alumni of Bedford College, London 831: 692:Smithsonian Institution Archives 599:Smithsonian Institution Archives 879:20th-century British botanists 864:Academics of Durham University 233:complements of British roses ( 200:, London. She was appointed a 1: 369:Blackburn had been elected a 161:Church, ending his career at 129:. She was also a pioneer of 194:Southlands Training College 180:(BSc) degree in 1912 and a 915: 601:. Smithsonian Institution. 109:(1892–1968) was a British 694:. Smithsonian Institution 550:Blackburn, K. B. (1952). 523:Blackburn, K. B. (1946). 325:'s management committee. 94: 69: 30: 838:Kathleen Bever Blackburn 730:Valentine, D.H. (1970). 101:Kathleen Bever Blackburn 25:Kathleen Bever Blackburn 884:British women botanists 647:Northumbrian Naturalist 641:Hart, Alan L. (2017). 184:(MSc) degree in 1914. 758:Clark, W. A. (1983). 149:) from 1918 to 1957. 840:at Wikimedia Commons 672:Dunn, T. C. (1983). 353:Retirement and death 218:J.W. Heslop-Harrison 174:University of London 147:Newcastle University 489:10.1242/jeb.1.4.557 426:1923Natur.112..687B 359:Parkinson's disease 303:Forestry Commission 253:British Association 178:Bachelor of Science 309:External interests 265:The Women’s Leader 836:Media related to 804:(14 March 2018). 420:(2819): 687–688. 182:Master of Science 143:Durham University 139:Armstrong College 98: 97: 89:Armstrong College 71:Scientific career 906: 889:Cytopathologists 835: 819: 817: 802:Linnean Society 798: 792: 784: 778: 770: 764: 763: 755: 749: 748: 736: 727: 718: 710: 704: 703: 701: 699: 684: 678: 677: 669: 663: 662: 660: 658: 638: 603: 602: 591: 573: 571: 546: 544: 519: 506: 493: 491: 466: 457:(150): 361–378. 451:Annals of Botany 445: 434:10.1038/112687c0 408: 399:(138): 159–188. 393:Annals of Botany 283:Silene latifolia 269:Frederick Keeble 108: 39:Ithaca, New York 35: 21: 16:British botanist 914: 913: 909: 908: 907: 905: 904: 903: 844: 843: 828: 823: 822: 800: 799: 795: 785: 781: 771: 767: 757: 756: 752: 734: 729: 728: 721: 711: 707: 697: 695: 686: 685: 681: 671: 670: 666: 656: 654: 640: 639: 606: 593: 592: 585: 580: 556:New Phytologist 549: 529:New Phytologist 522: 509: 496: 469: 448: 411: 386: 383: 367: 355: 331: 311: 214: 190: 170:Bedford College 168:She studied at 155: 131:pollen analysis 119:sex chromosomes 104: 41: 26: 17: 12: 11: 5: 912: 910: 902: 901: 896: 891: 886: 881: 876: 871: 866: 861: 856: 846: 845: 842: 841: 827: 826:External links 824: 821: 820: 812:) – via 793: 779: 774:Yorkshire Post 765: 750: 719: 705: 679: 664: 604: 582: 581: 579: 576: 575: 574: 562:(3): 364–377. 547: 520: 507: 494: 467: 446: 409: 382: 381:Selected works 379: 366: 363: 354: 351: 330: 327: 323:Hancock Museum 310: 307: 299:Kielder Forest 213: 210: 189: 186: 154: 151: 96: 95: 92: 91: 86: 82: 81: 78: 74: 73: 67: 66: 63: 59: 58: 55: 51: 50: 47: 43: 42: 36: 28: 27: 24: 15: 13: 10: 9: 6: 4: 3: 2: 911: 900: 897: 895: 894:Palynologists 892: 890: 887: 885: 882: 880: 877: 875: 872: 870: 867: 865: 862: 860: 857: 855: 852: 851: 849: 839: 834: 830: 829: 825: 815: 811: 807: 803: 797: 794: 790: 789: 783: 780: 776: 775: 769: 766: 761: 754: 751: 746: 742: 741: 733: 726: 724: 720: 716: 715: 709: 706: 693: 689: 683: 680: 675: 668: 665: 652: 648: 644: 637: 635: 633: 631: 629: 627: 625: 623: 621: 619: 617: 615: 613: 611: 609: 605: 600: 596: 590: 588: 584: 577: 570: 565: 561: 557: 553: 548: 543: 538: 534: 530: 526: 521: 517: 513: 508: 504: 500: 495: 490: 485: 481: 477: 473: 468: 464: 460: 456: 452: 447: 443: 439: 435: 431: 427: 423: 419: 415: 410: 406: 402: 398: 394: 390: 385: 384: 380: 378: 376: 372: 364: 362: 360: 352: 350: 348: 344: 339: 337: 329:Personal life 328: 326: 324: 320: 316: 308: 306: 304: 300: 296: 291: 289: 285: 284: 279: 278: 272: 270: 266: 262: 258: 254: 250: 246: 245:hybridisation 242: 238: 237: 232: 227: 225: 224: 223:Ranunculaceae 219: 211: 209: 207: 203: 199: 195: 187: 185: 183: 179: 175: 171: 166: 164: 160: 152: 150: 148: 144: 140: 136: 133:. 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Index


Ithaca, New York
Armstrong College
FLS
botanist
plant cells
sex chromosomes
cytology
genetics
pollen analysis
botany
Armstrong College
Durham University
Newcastle University
Methodist
Jesmond
Bedford College
University of London
Bachelor of Science
Master of Science
Southlands Training College
Battersea
lecturer
Reader
J.W. Heslop-Harrison
Ranunculaceae
chromosome
Rosa
polyploids
hybridisation

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