E. V. Wulff —92— Historical Plant Geography 



Drude, O., 1890: Handbuch der Pflanzengeographie (Stuttgart). 



Engler, a., 1879, 1882: Versuch einer Entwicklungsgeschichte der Pflanzenwelt, Vols 

 I and II (Leipzig). 



FuRSAEV, A. D., 1937: On the problem of species-formation along the banks of rivers 

 (In Russian; Soviet Bot., No. 3). 



GiLLi, A., 1934: Die Ursachen des Reliktcharakters von Widfenia carinthiaca (Engl 

 Bot. Jahrb., Vol. 66). 



Good, R. D'O., 1927: Summary of discontinuous generic distribution in the Angio- 

 sperms (New Phytologist, Vol. 26, No. 4). 



GU.STAFSSON, A., 1935: The importance of the apomicts for plant geography (Bot. 

 Notiser, Vol. 5). 



Hacerup, O., 1932: tJber Polj^jloidie in Beziehung zu Klima, Oekologie und Phylo- 

 genie (Hereditas, Vol. 16). 



Hagerup O., 1933: Studies on poljiiloid ecotypes in Vacciniiim uliginosum L. (Here- 

 ditas, Vol. 18). 



HER20G, Th., 1926: Geographic der Moose (Jena). 



Ilyinsky, a., 1933: Area and its dynamics (In Russian; Soviet Bot., No. 5). 



Irmscher, E., 1922, 1929: Pflanzenverbreitung und Entwicklung der Kontinente, I 

 and II (Mitt. Inst. Allg. Bot., Hamburg, Vols. 5, 8). 



Kashkarov, D. D. and Korovin, E. P., 1931: An analysis of the economic routes of 

 migration of the flora and fauna of Soviet Central Asia (In Russian; Jour. Ecol. and Bio- 

 coen.. Vol. I). 



Kerner, a., i86g: Die Abhangigkeit der Pflanzengestalt von Klima und Boden, ein 

 Beitrag zur Lehre von der Entstehung und Verbreitung der Arten; gestuzt auf die Verwandt- 

 schaftsverhaltnisse, geographische Verbreitung und Geschichte der Cylisus-Axiea aus dem 

 Stamme Tubocytisus DC. (Innsbruck). 



KoMAROv, V. L., 1901: Flora Manshuriae, Vol. I, Chap V. The Species and its 

 Subdivisions (In Russian; Acta Horti Petropolitani, Vol. 20). 



KoMAROV, V. L., 1908: Introduction to the floras of China and MongoUa (In Russian; 

 Bull. Bot. Card. St. Petersb., Vol. 29). 



Korovin, E. P., 1934: Types of migration in the plant world (In Russian; Bull. 

 Cent. As. State Univ., Ser. 8, No. 16). 



Krechetovich, V. I., 1938: On the problem of the glacial pseudo-relic Cyperaceae in 

 the floras of the Caucasus and Central Asia (In "The Relic Problem in the Flora of the 

 U.S.S.R.", Part I; in Russian; Acad. Sci. U.S.S.R., Moscow-Leningrad). 



Lavrenko, E. M., 1936: On the problem of the age of psammo-endemism in the 

 southern part of European U.S.S.R. (In Russian; Bull. State Geog. Soc, Vol. 68, No. i). 



Lehmann, E., 1937: Die Gattung Veronica in entwicklungsgeschichtlicher Betrachtung 

 (Cytologia, Fushii Jubil. Vol. 2). 



Lewitsky, G. a. and Kuzmina, N. E., 1927: The karyological method in the tax- 

 onomy and phylogeny of the genus Fesluca (subgenus Eu-Festuca) (In Russian; Bull. AddI 

 Bot., Gen. and Plantbr., Vol. 17, No. 3). 



Manton, I., 1934: The Problem of Biscutella laevigata L. (Zeitschr. ind. Abst. u. Vererb., 

 Vol. 67, No. i). 



MoLiscH, H., 1926: Pflanzenbiologie in Japan, Kap. XIV. tJber den Kosmopoli- 

 tismus der Pflanzen (Jena). 



Pachosky, I., 1921: Fundamentals of Phytosociology (In Russian; Kherson). 



Relic Problem in the Flora of the U.S.S.R. 1938, Parts I and II (In Russian; Acad. 

 Sci. U.S.S.R., Moscow-Leningrad). 



Ridley, H. N., 1923: The distribution of plants (Ann. Hot., Vol. 37). 



Ridley, H. N., 1925: Endemic plants (Jour. Bot., Vol. 43). 



^t';°^°^^'^' ^■' '5"- Genetische Pflanzengeographie (Handworterbuch d. Naturwiss., 

 Vol. IV, Jena; 2nd ed., Jena, 1934). 



SCHWARZ, 0., 1938: Neue Ergebnisse der Phytochorologie (Chronica Botanica, Vol. 

 4, No. i). 



SoKOLOvsKAYA, A. P., 1937: Karyo-geographical investigation of the genus Agnstis 

 L. (In Russian; Bot. Jour., Vol. 22, No. 5). 



SosNOVSKY, D., 1928: Present status and future outlook of the State Forest Reserve 

 of Pmus eldarica (In Russian; Bull. Azerbaidzhan Univ., Vol. 7). 



Steenis, C. G. G. J. VAN, 1935: On the origin of the Malaysian mountain flora 

 (Part 2, Bull. Jard. Bot. Buitenz., Ser. Ill, Vol. 13, No. 3). 



Stoller, J., 1921: Die Pflanzenwelt des Quartars {In PoTONii-GoTHAN, Lehrbuch der 

 Palaobotanik, 2nd ed.). 



Strelkova, O., 1938: Polyploidy and geographo-systematic groups in the genus 

 Alopecurus L. (Cytologia, Vol. 8, No. 3-4). 



Trotter, A., 1927: Un relitti di flora mediterranea neU'alto Fruili occidentale (Atti 

 R. 1st. Veneto di Sci., Lett, ed Arti, Vol. 86, No. 2; cited in Engler's Bot. Jahrb., igM, 

 Vol. 63, No. 2). 



Vierhapper, F., 1919: ijber echten und falschen Vikarismus (Oest. bot. Zeitschrift, 



No. i). ' 



