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 273. 1899; (2) Uebereineneuebigenere Hybride : Cucumis Melo \.. Y^ Citrul- 

 lus vulgaris Schrad. Bull. Acad. Sci. St. Petersb. V. 6 : 322. 1897. 

 Krasan, F. Variety, race, modification. Actes I" Congr. Internat. Bot. Paris, 366. 



1900. 

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 1895 ; (2) Die Hybriden der Carex caespitosa L. und der Carex stricta Good. 

 Oesterr. Bot. Zeitschr. 46 : 161. 1896. 

 Kiister, E. Die Mendel' schen Regeln, ihre urspriingliche Fassung und ihre modernen 



Erganzungen. Biol. Centralb. 22 : 129. 1902. 

 Kuhn, H. Die Baumwolle, ihre Cultur, Structur und Verbreitung. Wien, 1892. 

 Kusnezow, N. Uber den Polymorphismus der Veronica Teturiwn (L. ) Wallr. 



Bull. Acad. Sci. St. Petersb. V. 6^: I75- 1897. 

 Laubert, R. Anatomische und morphologische Studien am Bastard Laburnum 



AdatniVmx. Beih. Bot. Centralb. 10 : 144. 1901. 

 Lemoine, E. Hybrids between the common lilac and the laciniated Persian lilac. 



Jour. Roy. Hort. Soc. 24 : 299. 1900. 

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 hybrides. Actes i""' Congr. Internat. Bot. Paris, 355. 1900. 

 Levier, E. N^otulipes et Paleotulipes. Malpighia, 8 : 401. 1894. 

 Lewton-Brain, L. Hybridization of the sugar-cane. West Indian Bull. 4 : 63. 1903. 

 Linton E. F. (i) Experiments in cross- fertilisation of 5a/?V^j. Jour. Bot. 36 : 122. 



1898 ; (2) Two new willow-hybrids. Jour. Bot. 32 : 201. 1894. 

 Lowe, E. J. (l) Ferngrowing. London, 1895; (2) Hybrid ferns and crossed va- 

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 Macfarlane, J. M. ( i ) A comparison of the minute structure of plant hybrids with that 

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 37I : 203. 1892 ; (2) Hybridisation : its benefits and results to ornamental horticul- 

 ture. Gard. Chron. III. 14 : 361, 395. 1893 ; (3) Illustrations of heredity m plant 

 hybrids. Bot. Gaz. 16 : 255. 1891 ; (4) Observations on pitchered insectivor- 

 ous plants. VIII. On hybridity, etc. Ann. Bot. 7 : 445- 1893; (5) Observa- 

 tions on some hybrids between Droserafilijormis and D. intermedia. Contr. Bot. 

 Lab. Univ. Penn. 2 : 87. 1898 ; (6) The colour, flowering period and constitu- 

 tional vigour of hybrids. Gard. Chron. III. 9 : 753. 1891. 

 Malinvaud, E. The species and hybrids of ^.fw^'/^a. Jour. Bot. 38 : 171. 1900. 

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 Maxcn, W. R. Notes on the validity of Asplenium ebenoides as a species. Bot. Gaz. 



30 : 410. 1900. 

 Mayer, A. Salix Ratisbonensis, nov. hybr. Denies. Bot. Gesells. Regensb. 7 : 58. 



1898. 

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The occasional cross. Bot. Gaz. 17 : 420. 1892. 

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