NOTES 709 



16. Ghromatophores. V. Mohl : [Jnters. ul>. d. anat. Verhaltnisse d. Chlorophylls 

 Tubingen, 18:57. Nageli : Zeitschr. wiss. Bot. 3, p. 110. Schmitz : Verh. Rheinl. 



u. Westf. 40, 1889 (Algae). Schimper : B.Z. 1880 (starch-grains). Id. ibid. 1883 

 (chloroplasts and chromoplasts). Id. P.J. 16, 1885 (chloroplasts). Arthur Meyer: 

 Das Chlorophyllkorn, etc., Leipzig, 1883. G. Haberlandt : B.Z. 1877 (development 

 of chloroplasts in cotyledons of Phaseolus). id. Flora, 188S (chloroplasts of Selagi- 

 nella). Mikosch : Sitzb. Wien, 1878 and Ost. bot. Zeitschr. L877 (development 

 and division of chloroplasts). Bredow : P.J. 22, 1891. Binz : Flora, 1892 (Erg.- 

 Bd.) (starch-grahis). Zimmermann : Beitr. Morph. u. Phys. 1 (leucoplasts). Id. 

 ibid. 2 (variegated leaves). Senn : Die Gestalts- u. Lagesveranderungen d. 

 Pflanzenchromatophoren, Leipzig, 1908. Schimper's views as to the origin and 

 genetic interrelations of the various types of chromatophores and the physiological 

 importance of leucoplasts, have recently been combated by Belzung, Eberdt and 

 Koningsberger, but the arguments so far brought forward by them are far from 

 conclusive. 



17. Vacuolar membranes. In addition to the papers of De Vries, Pfeffer and Went, 

 already cited, see De Vries : P.J. 14, 1884. Wakker : P.J. 19, 1888. Crato : 

 B.Z. 1893 (physodes). Zimmermann : Beitr. z. Morph. u. Phys. 1, p. 185 (elaio- 

 plasts). Raciborski : Anz. Akad. Krakau, 1893 (elaioplasts). For contractile 

 vacuoles cf. Pfeffer : Phanzenphysiologie, II. p. 398, and the literature there cited. 



18. Tangl : P.J. 12. Strasburger : P.J. 36, 1901, and the literature there cited. 



19. Structure and growth of the cell-wall. Nageli : Bot. Mittheil. 2, 1866. N. 

 Pringsheim : Unters. ub. d. Bau u. d. Bildung der Pflanzenzelle, 1854. Criiger : 

 B.Z. 1855. Dippel : Abh. Senck. 10, 1876. Schmitz : Sitzb. niederrh. Ges. 1880. 

 Strasburger : Ub. d. Bau u. d. Wachsthum d. Zellbaute, Jena, 1882. Id. Histol. 

 Beitr. 2, Jena, 1889. Id. P.J. 31, 1898. Leitgeb : Ub. Bau u. Entwick. d. Sporen- 

 haute, Graz, 1884. Schenck : Unters. iib. d. Bild. v. centrifugalen Wandverdickungen 

 an Pflanzenhaaren u. Epidermen, Bonn, 1884. Wille : Ub. d. Entwickelungsgesch. d. 

 Pollenkorner d. Aug. u. d. Wachst. d. Membranen durch Intussusception, 1886. 

 Wiesner : Sitzb. Wien, 93, 1886. Id. Elementarstruktur, etc., 1892. Krasser : Sitzb. 

 Wien, 94, 1887 (protein-content of cell-wall). Noll : Experimentalunters. lib. d. 

 Wachst. d. Zellmembran, Wurzburg, 1887. Krabbe : P.J. 18, 1887. Klebs : Biol. 

 Centr. 6, 1886 (critique of Wiesner's 1886 paper). Id. B.Z. 1887. Id. Unters. Tiib. 2, 

 1886 (gelatinous membranes). Zacharias : Flora, 1891 (root-hairs). Correns : Flora, 

 1889 (intussusception). Id. P.J. 23, 1891. Id. ibid. 26, 1894 (critique of Wiesner's 

 views). Fitting : B.Z. 1900 (megaspores of Isoetes). Krieg : Beih. bot. Centr. 31, 

 1907 (striation of coniferous tracheides). 



20. Chemical composition of cell- walls. Zimmermann: Botanische Mikrotechnik, 

 Tubingen, 1892, pp. 135 sqq., and the literature there cited. W. Hofmeister : Landw. 

 Jahrb. 1888. Id. ibid. 1889. Gilson : La Cellule, 9, 1893. Reiss : Landw. Jahrb. 

 1889 (reserve-cellulose). E. Schulze : Ber. 1880 (reserve-cellulose). Wiesner : 

 Sitzb. Wien, 77, 1878 (phloroglucin- reaction). Singer : Sitzb. Wien, 85, 1882 

 (lignihed walls). Nickel : Die Farbenreaktionen d. Kohlenstoffverbindungen, 

 Berlin," 1890. Von Hohnel : Sitzb. Wien, 81, 1880 (cork). Kiigler : Ub. d. Suberin, 

 Strassbm-g, 1884. Gilson : La Cellule, 4, 1890. Hofmeister : Sitzb. sachs. Akad. 

 10, 1858 (mucilaginous walls). B. Frank : P.J. 5, 1865 (mucilage). Nadelmann : 

 P.J. 21, 1890 (mucilaginous endosperms). Walliczek : P.J. 25. 1893 (mucilaginous 

 walls in vegetative organs). Mangin : Bull. Soc. Bot. 109, 1889 (pectic compounds). 

 Id. ibid. Ill, 1890 (colour reactions of cell-wall constituents). Kohl : Anatoniisch- 

 physiologische Unters. d. Kalksalze u. Kieselsaure in d. Pflanze, Marburg, 1889. 



