BIBLIOGRAPHY 229 



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6. 1837. Meyen, F. J. F., Neues System der Pflanzen-Physiologie, 



Berlin, 1837, Bd i, pp. 181-189, Bd n, pp. 428-464. 



One section is devoted to coloured cell-sap, which is 

 noted as the colouring matter of flowers. Another section 

 is concerned with the formation of colour. 



7. Mohl, H. von, ' Untersuchungen iiber die winterliche 

 Farbung der Blatter,' Dissertation, 1837. Vermischte 

 Schriften botanischen Inhalts, Tubingen, 1845, pp. 375-392. 



A summary of the views of previous authors on the 

 origin of anthocyanin from chlorophyll ; this hypothesis 

 refuted. General account of the winter reddening of 

 leaves. pp. 104, 105 



8. 1838. Mohl, H. von, 'Recherches sur la coloration hibernale 



des feuilles,' Ann. sci. nat. (Bot.), Paris, 1838, ser. 2, ix, 

 pp. 212-235. 



A translation of the preceding paper. pp. 104, 105 



9. 1853. Martens, 'Recherches sur les couleurs des vegetaux,' 



Bui. Acad. roy., Bruxelles, 1853, xx (1), pp. 197-235. 



An erroneoiis view is held that there are only two funda- 

 mental pigments, anthocyanin and anthoxanthin, and that 

 these combine together to give chlorophyll. 



10. 1879. Hildebrand, F., Die Farben der Bliithen, Leipzig, 1879, 



83 pages. 



A very full account is given of the range of colour and 

 colour varieties in various genera and natural orders. 

 Histological distribution and effect of various factors such as 

 light, temperature, soil, etc., on the formation of pigment. 



11. 1884. Hansen, A., Die Farbstoffe der Bliithen und Friichte, 



Wiirzburg, 1884, 19 pages. 



A general account, though mainly chemical, of various 

 plastid and soluble pigments in plants. pp. 44, 47 



12. 1887. Wigand, A., 'Die rothe und blaue Farbung von Laub 



und Frucht,' Botanische Hefte, Forschungen aus dem 

 botanischen Garten zu Marburg, Marburg, 1887, Heft 2, 

 pp. 218-243. 



Account of the morphological and histological distri- 

 bution of anthocyanin ; the chromogen of anthocyanin 

 and the factors connected with reddening. p. 30 



13. 1888. Sewell, P., 'The Colouring Matters of Leaves and 



Flowers,' Trans. Bot. Soc., Edinburgh, 1888, xvn (Pt 2), 

 pp. 276-308. 



A short general account of plant pigments. 



14. 1 889. Dennert, E., ' Anatomic und Chemie des Blumenblatts,' 



Bot. Centralbl,Cassel, 1889,xxxvm, pp. 425-431,465-471, 

 513-518, 545-553. 



