1920I BUCHHOLZ—POLYEMBRYOXY 167 



LITERATURE CITED 



1. Brown, R., in Capt. Philip P. King's "Survey of the western and inter- 

 tropical coasts of Australia," London, 1826, Appendix B, p. 557; also 

 Ann. Sci. Nat. I 8:211. 1826. 



2. — , Plurality and development of embryo in the seeds of Coniferae. 



Rep. Brit. Assoc. Adv. Sci. 1835: 596, 597; reprinted in Ann. Sci. Nat. II 

 20: 193. 1843; same paper reprinted with postscript and plate, Ann. Nat. 

 Hist. 13:138-374. 1844. 



3. Buchholz, J. T., Suspensor and early embryo of Pinus. Bot. Gaz. 66: 

 185-228. pis. 6-10. figs. 3. 1918. 



4. Chamberlain, C. J., Oogenesis in Pinus Laricio. Bot. Gaz. 27:268-280. 

 pis. 3. 1899. 



5. Coulter, J. M., and Chamberlain, C. J., Morphology of Spermatophytes. 

 Part I. Chicago. 1901. 



6. , Morphology of gymnosperms. Chicago. 1910. 



7. Ferguson, Margaret C, Contributions to- the life history of Pinus, with 

 special reference to sporogenesis, the development of the gametophytes, and 

 fertilization. Proc. Wash. Acad. Sci. 6:1-202. pis. 1-24. 1904. 



8. Hutchinson, A. H., Morphology of Keteleeria Fortunei. Bot. Gaz. 63: 

 124-135. pis. 7, 8. 1917. 



9. Jeffrey, E. C, The comparative anatomy of the Coniferales II. The 

 Abietineae. Mem. Boston Soc. Nat. Hist. 6:1-37. pl s - T ~7- 1904. 



10. , The anatomy of woody plants. Chicago. 1917. 



11. Kildahl, N. Johanna, Development of walls in the proembryo of Pinus 

 Laricio. Bot. Gaz. 44:102-107. pis. 8,9. 1907. 



12. Land, W. J. G., A morphological study of Thuja. Bot. Gaz. 34:249-259. 

 pis. 6-8. 1902. 



13. Lawson, A. A., Gametophytes and embryo of Pseudotsuga Douglasii. 

 Ann. Botany 23:163-180. pis. 12-14. 1909. 



14. Miyake, K., On the development of the sexual organs and fertilization in 

 Picea excelsa. Ann. Botany 17:351-352. pis. 4. 1903. 



15. , Contributions to the fertilization and embryogeny of Abies bal- 



samea. Beih. Bot. Centralbl. 14:134-144. pis. 6-8. 1903. 



16. Miyake, K., and Yasui, Kono, On the gametophytes and embryo of 

 Pseudolarix. Ann. Botany 25:639-647. pi. 48. 1911. 



17. Murrill, Wm. A., Development of the archegonium and fertilization in 

 the hemlock spruce (Tsuga canadensis Carr.). Ann. Botany 14:583-607. 

 pis. 31,32. 1900. 



18. Strasburger, E., Die Coniferen und Gnetaceen. Jena. 1872. 



