INDUCTION, DEVELOPMENT, AND IIICKITA I'.I LITV ()! F ASCI ATIOXS. 17 



(7) The morphology of the fasciated stem is the enlargement of u single 

 growing point. There is no evidence of fusion in the growing region. 



(8) When tested in pure cultures, the progeny of fasciatcd individuals 

 show no greater tendency to fasciation than the progeny of normal plants. 

 The effects of the stimuli causing" these malformations in the evening-prim- 

 rose are therefore to be taken as in no wise heritable. 



In conclusion, the writer wishes to express her appreciation of the assis- 

 tance and of the many courtesies extended to her by Dr. D. T. MacDougal, 

 Dr. H. M. Richards, and by the director and the members of the staff of 

 the New York Botanical Garden. The work was begun under the auspices 

 of the garden and continued under those of the Carnegie Institution of 

 Washington . 



LITERATURE CITED. 



1. KNIGHT. On the cultivation of the cockscomb. Trans. Hort. Soc. of London, 



4 : 321, 1820. 



2. MoUQUiN-TANDON, A. Elements de teratologie vegetale. Paris, 1841. 



3. MASTERS, M. T. Vegetable teratology. London, 1869. 



4. GODRON. Melanges tdratologiques. Mem. de la Soc. nat. dessc. nat. de Cherbourg, 



16 : 1871-72. 



5. PEYRITSCH, J. Uber kiinstliche Erzeugung von gefullten Bliithen und anderen 



Bildungsabweichungen. Sitzber. d. k. Akad. d. Wiss. in Wien, math.-naturw., 

 Cl., 97:597, 1888. 



6. SACHS, J. Gesammelte Abhandlungen liber Pflanzen-Physiologie, 1 : 597, 1892. 



7. NESTLER, A. Untersuchungen iiber Fasciationen. Oesterr. bot. Zeitschr., 44 : 343, 



1894. 



8. NESTLER, A. Uber ring fasciation. Sitzber. d. k. Akad. d. wiss. Wien, math.- 



naturw. Cl., 103: 153, 1894. 



9. DE VRIES, H. Over de Erfelijkheid der Fasciatien. Bot. Jaarboek Dodonaea, 



6 : 72, 1894. 

 10. RAMALEY, F. On the stem anatomy of certain Onagraceae. Minn. Bot. Studies, 



1 : 674, 1896. 

 u. DE VRIES, H. Sur la culture des fasciations des especes annuelles et biannuelles. 



Rev. gen. de bot., 1 1 : 136, 1899. 



12. DE VRIES, H. Sur la culture des monstruosites. Comptes Rendus, Pans, 128 : 125, 



1899. 



13. DE VRIES, H. Uber die Abhangigkeit der Fasciation vom Alter bei zweijahnger 



Pflanzen. Bot. Centralblatt, 77 : 289, 1899 



14. LAMAKLIERE, G. DE. Sur la production expeVimentale des tiges et cl'inflorescences 



fasciees. Comptes Rendus, Paris, 128: 1601, 1899. 



15. MOLLIARD, M. Cas de virescence et de fasciation d'origine parisitaire. Rev. gen. 



de bot., 12 : 323, 1900. 



16. GOEBEL, K. Organography of plants. Parti. Oxford, 1900. 



17. RENAUDET, G. Contribution a 1'gtude de la te"ratologie vegetale de la fasciation 



herbace'e et ligneuse. These, Poitiers, 1901. 



18. CONARD, H. S. Fasciation in the sweet potato. Univ. of Penn , Bot. Lab. Lontr b., 



2 : 205, 1901. 



19. DE VRIES, H. Die Mutations-Theorie. Leipzig, 1901. 



20. DE VRIES, H. Species and varieties. Chicago, 1905. 



21. BI.ODGETT, F. H. Fasciation in field peas. Plant World, 8 : 170, 1905. 



22. Hus, H. Fasciation in Oxalis crenata and experimental production of fasciation. 



Rept. Missouri Bot. Gard., 17: 147, i9 6 - 



23. PUGLISI, M. Contribute alia teratologia vegetale. i. Fasciazione di Vcscarta 



reticula, di Bunias orientalis. Ann. di botanica, 4 : 367, 1906. 



