264 BIBLIOGRAPHY 



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287. Schell, J., 'Ueber die Pigmentbildung in den Wurzeln 

 einiger Salix-Arten,' Beilage zu dem Protocolle der 95. 

 Sitzung der Naturforscher-Gesellschaft an der Universitat zu 

 Kazan, Kazan. Reference in Justs bot. Jahresber., Berlin, 



1877, v, p. 562. 



Light causes formation of colour in adventitious roots 

 of Salix sp. grown in water in glasses. pp. 28, 89 



288. 1878. Bonnier, G., et Flahault, Ch., 'Sur les variations qui se 



produisent avec la latitude dans une meme espece vegetale,' 

 Bui. soc. bot., Paris, 1878, xxv, pp. 300-306. 



Colours of flowers more intense in Norway than those 

 of the same species in France. Discussion of the subject. p. 6 



289. Bonnier, G., et Flahault, Ch., 'Observations sur les 

 modifications des vegetaux,' Ann. sci. nat. (Bot.), Paris, 



1878, ser. 6, vn, pp. 93-125. 



Intensity of flower colour increases in Northern 

 latitudes. P- 6 



290 Flahault, Ch., 'Nouvelles observations sur les modifica- 



tions des vegetaux,' Ann. sci. nat. (Bot.), Paris, 1878, ser. 6, 

 ix, pp. 159-207. 



Effect of latitude on formation of pigment. Of a 

 number of species grown both in Upsala and Paris, indi- 

 viduals in the former district produced the more vividly 

 coloured flowers. P- 6 



291. Pellat, A., 'Sur quelques variations que prosentent les 

 vegetaux avec 1 'altitude,' Bui. soc. bot., Paris, 1878, xxv, 

 pp. 307-308. 



Greater intensity of colour at high altitudes. 



292. 1878. Flahault, Ch., 'Sur la formation des matieres colorantes 



dans les vegetaux,' Bui. soc. bot., Paris, 1879, xxvi, 

 pp. 268-273. 



Connection between pigment formation and both light 

 and reserves of nutritive substances. p. 6 



293. 1880. Batalin, A., 'Die Einwirkung des Lichtes auf die 



Bildung des rothen Pigmentes,' Acta horti Petr., St Peters- 

 burg, 1880, vi (Fas. 2), pp. 279-286. 



Effect of light on pigment production in seedlings. p. 89 



294. Bonnier, G., 'De la variation avec 1'altitude des 

 matieres colorees des fleurs chez une meme espece vegetale,' 

 Bui. soc. bot., Paris, 1880, xxvn, pp. 103-105. 



Colours of flowers of various species increase in intensity 

 with altitude. pp. 6, 25, 84 



295. *Pynaert, E., 'De Finfluence de la lumiere sur la 

 coloration des feuilles,' Congres de Botanique et d'Horti- 

 mlture de 1880 lenu a Bruxelles, Partie 2, p. 53. 



