520 SAX: FERTILIZATION IN FRITILLARIA PUDICA 
with it, migrates to the lower one, probably by cytoplasmic 
streaming. 
7. The two polar nuclei and male nucleus fuse completely and 
the subsequent division is normal. 
8. The two red bodies, the ‘‘X-Kérper” of Nawaschin, which 
remain in the pollen tube after the male nuclei have been dis- 
charged, are very probably nuclei. They probably correspond 
to the two vegetative nuclei described in the pollen tube before 
the two male nuclei were discharged. 
In conclusion I wish to acknowledge my indebtedness to Dr. 
C. E. Allen for literature, to Dr. F. L. Pickett for extending the 
privileges of his laboratory, and especially am I indebted to my 
wife, Dr. Hally Jolivette Sax, for her constant encouragement 
and assistance throughout the work. 
LITERATURE CITED 
1. Blackman, V. H. & Welsford, E. J. Fertilization in Lilium. 
Ann. Bot. 27: 111-114. Peta. 1913. 
2. Ferguson, M. C. The development of the pollen tube and the 
division of the generative nucleus in certain species of pines. 
nn. Bot. 15: 193-223. pi. f@-Tg, °° 1901, 
3. ——— The development of the egg and fertilization in Pinus 
Strobus. Ann. Bot. 15: 435-479. pl. 23-25. 1901. 
4. Guignard, L. Nouvelles études sur la fécondation. 
Nat. Bot. VII. 14: 163-296. pl. 9-18. 1891. 
Sur les antherozoides et la double copulation sexuelle chez 
les végétaux angiospermes. Compt. Rend. 128: 864-871. 
f. I-19. 1899. 
6. —— L’appareil sexuel et la double fécondation dans les Tulipes. 
Ann. Sci. Nat. Bot. VII, 12: 365-387. pl. g-11. 1900 
Ann. Sci. 
8, 
7: Nouvelles recherches sur la double fécondation chez les 
végtéaux angiospermes, Compt. Rend. 131: 153-160. 1900. 
8. Mottier, D. M. Ueber das Verhalten der Kerne bei der Ent- 
wickelung des Embryosacks und die Vorginge bei der Be- 
fruchtung. Jahrb. Wiss. Bot. 31: 125-158. pl. 2, 3. 1898. 
9. ——— Fecundation in plants. Carnegie Inst. Publ. 15. 1904. 
10. Nawaschin, S. Neue Beobactungen iiber Befruchtung bei Fritil- 
laria tenella und Lilium Martagon. Bot. Centralb. 77: 62. 
