— 147 — 



11. J. M. Mac far lane: Observations on Pitchered Insectivorous Plants. I. 

 (Annals of Botany, vol. 1889, pag. 254). 



12. J. M. Mac far lane: Observations on Pitchered Insectivorous Plants. II. 

 (Annals of Botany, vol. Vll, 1893, pag. 420). 



13. J. M. Macfarlane: Nepenthaceae. (A. Engler: Das Pflanzenreich. Leipzig 

 1908). 



14. E. Wunschmann: Ueber die Gattung Nepenthes. Inaugural-Dissertation. 

 Berlin 1872. 



15. E. Zacharias: Ueber die Anatomie des Stammes der Gattung Nepenthes. 

 Inaugural-Dissertation. Strassburg 1877. 



16. Paul Zipperer: Beitrag zur Kenntnis der Sarraceniaceen. Inaugural- 

 Dissertation. Miinchen 1885. 



Note to page 135. In his 4th edition of „Physiologische Pflanzenanatomie", 

 Dec. 1909, Haberlandt mentions some new investigations on tlie conducting 

 surface of the Nepenthes-pitchev. He maintains, partially after Bobisut. 

 that the small cells, here found dispersed over all the wax-covered conducting 

 surface of the pitcher, are deformed stomata. The case is very interesting, 

 and without doubt he is quite right. But Haberlandt says, that these small 

 cells already were seen by Go eb el — already De Bary (1877) and Wunsch- 

 mann (1872) mentioned them. p, -u 



28—2—1910. 



10* 



