REFERENCES
- Adamson , R. S. 1933 . “Fossil Plants from Fort Grey near East London” . Ann. S. Afr. Mus. , xxxi : 67
- Bentham , G. 1863-78 . Flora Australiensis London
- Bentham , G. and Hooker , J. D. 1862-83 . Genera Plantarum London
- Bews , J. W. 1921 . “Some General Principles of Plant Distribution as Illustrated by the South African Flora” Vol. xxxv , 1 Ann. Bot.
- Bews , J. W. 1922 . “The South-east African Flora, its Origin, Migrations and Evolutionary Tendencies” . Ann. Bot. , xxxvi : 209
- Bews , J. W. 1927 . “Studies in the Ecological Evolution of the Angiosperms” . New Phyt. , xxiv : 1 65, 129, 209, 273
- Black , J. M. 1922-29 . Flora of South Australia Adelaide
- Bolus , H. 1905 . Sketch of the Floral Regions of South Africa . In Science in South Africa. Cape Town ,
- Bolus , H. and Wolley-Dod , A. H. 1903 . “A List of the Flowering Plants of the Cape Peninsula” . Trans. S. Afr. Phil. Soc. , v, 207
- Bremerkamp , C. B. 1935 . “Scientific Results of the Vernay-Lang Kalahari Expedition. The Origin of the Flora of the Central Kalahari” . Ann. Transv. Mus. , xiv : 443
- Cain , S. A. 1943 . “Criteria for the Indication of the Centre of Origin in Plant-Geographical Studies” . Torreya , xliii : 132
- Cain , S. A. 1944 . Foundations of Plant Geography New York
- Campbell , D. H. 1943 . Continental Drift and Plant Distribution San Francisco (privately printed)
- Compton , R. H. 1929 . “The Flora of the Karroo” . S. Afr. Journ. Sci. , xxvi : 160
- Davison , J. D. 1927 . “Celastraceae R.Br.” . Bothalia , ii : 289
- du Toit , A. L. 1933 . “Crustal Movement as a Factor in the Geographical Evolution of South Africa” . S. Afr. Geogr. Journ. , xiv : 3
- du Toit , A. L. 1937 . Our Wandering Continents Edinburgh
- Engler , A. 1882 . Versuch einer Entwicklungsgeschichte der extratropischen Florengebiete der südlichen Hemisphäre Leipzig
- Engler , A. 1882 . Ueber die hochgebergsflora des tropischen Afrika Berlin
- Engler , A. 1908 . “Pflanzengeographische Gliederung von Afrika” . Sitzb. K. Preus. Akad. Wiss. , liv, 781
- Engler , A. and Prantl , K. 1887-97 . Die Naturlichen Pflanzenfamilien Leipzig
- Engler , A. and Prantl , K. 1925-40 . Id., Auf. 2. Leipzig
- Engler , A. and Gilg , E. 1919 . Syllabus der Pflanzenfamilien, , Ed. 8 Leipzig
- Florin , R. 1940 . “The Tertiary Fossil Conifers of Southern Chile and their Phytogeographical Significance” . Kgl. Svensk. Vetensk. Handl. , xix : 4
- Fourcade , H. G. 1941 . “Check List of the Flowering Plants in the Divisions of George, Knysna, Hunansdorp and Uniondale” . Bot. Surv. S. Afr. Mem. , xx
- Gilg-Benedict , C. 1930 . “Restionaceae” . in Engler and Prantl, Die Natur. Pflanzenfam., Auf. 2, 15a , viii
- Good , R. D'O. 1931 . “A Theory of Plant Geography” . New Phyt. , xxx : 149
- Good , R. D'O. 1933 . “A Geographical Survey of the Flora of Temperate South America” Vol. xlvii , 691 Ann. Bot.
- Harvey , W. H. and Sonder , W. O. 1859-65 . Flora Capensis. I-III Edited by: Thistleton-Dyer , W. T. and Hill , A. W. London London, IV-VII, ed. London1933
- Hauman , T. and Balle , G. 1934 . “Les ‘Alchemilla’ de Congo Belge” . Rev. Bot. et Zoo. Afr. , xxiv : 301
- Haumann , L. and Vanderveken , G. 1917 . “Catalogue des phanérogams de l'Argentine” . Ann. Mus. Nac. Nat. Hist. Buenos Aires , xxxix : 1
- Hayak , A. 1926 . Allgemeine Pflanzengeographie Berlin
- Hill , A. W. 1929 . “Antarctica and Problems of Geographical Distribution” . Proc. Int. Congr. Pl. Sci. , ii : 1477
- Hitchcock , A. S. 1930 . “A Botanical Trip to South and East Africa” . Sci. Monthly , xxxi : 481
- Hutchinson , J. 1946 . A Botanist in South Africa London
- Irmscher , E. 1922 . “Pflanzenverbreitung und Entwicklung der Kontinente” . Mitt. Inst. Allg. Bot. Hamburg , v, 17
- Levyns , M. R. 1934 . “A Revision of Lobostemon and a Discussion of the Species Problem” . Journ. Linn. Soc. Bot. , xlix : 393
- Levyns , M. R. 1930 . “Floral Evolution and Geographical Distribution in Lobostemon” . S. Afr. Journ. Sci. , xxvii : 317
- Levyns , M. R. 1937 . “A Revision of Stoebe L.” . Journ. S. Afr. Bot. , iii : 1
- Levyns , M. R. 1938 . “Some Evidence Bearing on the Past History of the Cape Flora” . Trans. Roy. Soc. S. Afr. , xxvi : 401
- Levyns , M. R. 1945 . “A Comparative Study of the Inflorescence in Four Species of Schoenoxiphium, and its Significance in Relation to Carex and its Allies” . Journ. S. Afr. Bot. , xi : 79
- Maiden , J. H. and Betche , E. 1916 . A Census of New South Wales Plants Sydney
- Marloth , R. 1908 . Wiss. Erg. Deut. Tiefsee Exped. , Das Kapland. Jena, 2, 3
- Marloth , R. 1929 . “The Realm of the Cape Flora” . S. Afr. Journ. Sci. , xxvi : 154
- Norlindh , T. 1943 . Studies in the Calenduleae. I Lund
- Norlindh , T. 1946 . Id. “II. Phytogeography and Interrelations” . Bot. Not. , iv : 471
- Oliver , W. R. B. 1925 . “Biogeographical Relations of the New Zealand Flora” . Journ. Linn. Soc. Bot. , lxvii, 49
- Palachy , J. 1906 . “Zur Genesis der Afrikanischen Flora” . Res. Sci. Congr. Int. Bot. Wien , 1905, 389
- Palmgren , A. 1925 . “Die Artenzahl als pflanzengeographischen Character” . Acta Bot. Fenn. , i, 8
- Phillips , E. P. 1926 . The Genera of South African Plants . Cape Town ,
- Phillips , J. F. V. 1927 . “Fossil Widdringtonia in Lignite of the Knysna Series, with a Note on Fossil Leaves of Several other Species” . S. Afr. Journ. Sci. , xxiv : 188
- Phillips , J. F. V. 1931 . “Forest Succession and Ecology in the Knysna Region” . Bot. Surv. S. Afr. Mem. , xiv
- Pillans , N. S. 1928 . “The African Genera and Species of Restionaceae” . Trans. Roy. Soc. S. Afr. , xiv : 207
- Rennie , J. V. L. 1931 . “Notes on Fossil Leaves from the Banke Clays” . Trans Roy. Soc. S. Afr. , xix : 251
- Rogers , A. W. 1932 . “Post-Cretaceous Climates in South Africa” . S. Afr. Journ. Sci. , xxix : 98
- Sahni , B. 1936 . “Wegener's Theory of Continental Drift in the Light of Palaeobotanical Evidence” . Journ. Ind. Bot. Soc. , xv : 319
- Schonland , S. 1924 . “On the Theory of ‘Age and Area’” . Ann. Bot. , xxxviii : 453
- Seward , A. C. 1931 . Plant Life through the Ages Cambridge
- Seward , A. C. 1935 . “Notes on Jurassic Floras” . Proc. Yorks. Geol. Soc. , xxiii : 1
- Smuts , J. C. 1922 . “Climate and Man in South Africa” . S. Afr. Journ. Sci. , xix : 1
- Stuckert , T. 1917 . “Tercera contribucion al conocimienta de las Graminacias Argentinas” . Ann. Mus. Nac. Nat. Hist. Buenos Aires , xiv : 1
- Szymkiewicz , D. 1934 . “Une contribution statistique à la géographie floristique” . Ann. Soc. Bot. Polon. , ix : 251
- Szymkiewicz , D. 1936 . “Seconde contribution statistique à la géographie floristique” . Ann. Soc. Bot. Polon. , xiii : 211
- Syzmkiewicz , D. 1937 . “Contributions à la géographie des plantes. IV. Kosmos” lii, A, 1
- Tate , R. 1890 . Handbook of the Flora of Extra-tropical South Australia Adelaide
- Thoday , D. 1925 . “Geographical Distribution and Ecology of Passerina” . Ann. Bot. , xxxix : 175
- Thomas , H. H. 1931 . “The Early Evolution of the Angiosperms” . Ann. Bot. , xlv : 647
- Weimarck , H. 1934 . Monograph of the Genus Cliffortia. Lund
- Weimarck , H. 1938 . “Die Verbreitung einiger Afrikanisch-montanen Pflanzengruppe.” I, II, Svensk. Bot. Tidsk., xxvii, 410, 1935. III, IV, l.c., xxx, 36
- Weimarck , H. 1940 . “Monograph of the Genus Aristea” . Lunds Univ. Arrsk. , ii : 36
- Weimarck , H. 1941 . “Phytogeographical Groups, Centres and Intervals within the Cape Flora” . Lunds Univ. Arrsk. , xxxvii : 5
- Wolff , H. 1927 . “Umbelliferae” . in Engler, das Pflanzenreich , iv : 228 1910, 1913
- Wulff , H. 1943 . “ An Introduction to Historical Plant Geography ” . transl. E. Brissenden. Waltham, Mass