226 Botanisches Centralblatt. 



fadenemplindlichkeit bei Sparmannia africana. (Gartenflora. LVIII. 

 7. p. 137—140.) 

 Kirkaldy, J. W. and I. M. Drummond. 1909. An introduction 

 to the study of biology. (Oxford, Clarendon Press. 1909. IV, 259 pp. 

 101 tig.) 



IV. Morphologie, Teratologie, Befruchtung, Cytologie. 

 Cf. III. Himmelbaur. 



Berridge, E. M. 1909. Fertilization in Ephedra altissima. (Ann. of 



Bot. XXIII. 91. p. 509—512. 1 pl.) 

 Collins, G. N. 1909. Apogamy in the maize plant. (Contr. U. S. 



nation. Herb. Washington. XII. 10. p. 453—455. ill.) 

 Cook, M. T. 1909. Notes on teratology in tropica! plants. (Rept. 



Estac. centr. agron. Cuba. IL p. 140—142. 2 pl.) 

 Cook, M. T. 1909. Notes on the embryologj'- of the Nymphaeaceae. 



(Bot. Gaz. XLVIII. 1. p. 56-60. 1 pl.) 

 Digby, L. 1909. Observations on , chromatin bodies' and iheir rela- 



tion to the nucleolus in Galtonia caudicans, Decsne. (Ann. of Bot. 



XXIII. 91. p. 491-502. 2 pl.) 

 Figdor, W. 1909. Die Erscheinung der Anisophyllie. Eine mor- 

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1909. 8". 175 pp. 23 Abb. 7 Taf.) 

 Fletcher, J. «J. 1909. Illustrations of Polycotj'-ledony in Persoonia; 



with some reference to Nuytsia. (N. 00. Proteaceae, Loranthaceae.) 



(Proc. Linnaean Soc. N. S. Wales. XXXIII. 4. p. 864-882.) 

 Gallardo, A. 1909. La division de la cellule, phenomene bipolaire 



de caractere electro-colloidal. (Arch. Entw.-Mech. Organismen. 



XXVIII. 1. p. 125—156. 9 Fig.) 

 Gates, R. R. 1909. The behavior of chromosomes in Oenothera 



lata X 0. gigas. (Bot. Gas. XLVIII. 3. p. 179-199. 3 pl.) 

 Gertz, O. 1909. Om fem- och sexhornade frukter af Trapa natans 



L. Ett bidrag tili dedubbleringsteorien. (Bot. Not. 1909. 3. p. 135— 



145. ill.) 

 Gregory, R. P. 1909. Forms of flowers in Valeriana dioica L. 



(Journ. Linnaean Soc. XXXIX. 270. p. 91 — 104. 1 pl.) 



Y. Tarietäten, Descendenz, Hybriden. 



Bitter, G. 1908. Oxalis stricta L. var. decumbens n.var. , eine Mu- 

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Bitter, G. 1908. Ueber Verschiedenheiten in der Entwicklungsdauer 

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Brown, H. B. 1909. A peculiar species of Arctium. (Plant World. 

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Bryce, J. 1909. Personal reminiscences of Charles Darwin and 

 of the reception of the '-Origin of Species." (Proc. amer. philos. 

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Burbank, L. 1909. Another mode of species forming. (Pop. Sc. 

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Cook, O. F. 1909. Superiority of line-breeding over narrow-breeding. 

 (Bull. Dept. Agric. Washington 1909. 8^. 45 pp.) 



Cook, O. F. 1909. Suppressed and intensified characters in Cotton 

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Cook, O. F., A. Mc Lachlan and R. M. Meade. 1909. Stud}- of 



