1899] MULTINUCLEAR CELLS 439 



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of Botany, vol. ix. p. 665, 1895. 



6. Hegelmaier, F., "Ueber aus mehrkernigen Zellen aufgebatue Dicotyledonen- 



Keimtrager," Bot. Zeit. p. 497, 1880. 



7. Hill, M. D., "Cell-Division," Nat. Sci. vol. iv. (January and June), pp. 38 and 



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8. Hofmeistek, W., "On the Germination, etc., of the Higher Cryptogamia," English 



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9. Johoav, F., "Ueber die Zellkerne in den Secretbehaltern u. Parenchymzellen der 



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11. Montgomery, T. H., "Comparative Cytological Studies, etc.," Journal of Morphology, 



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der Sexualkerne," Cohn's Bcitr. zur Biol, der Pflanzen, Bd. v. p. 443. 



13. Rosen, F., "Kerne und Kernkorperchen in meristematischeii und sporogenen 



Gewebe," Cohn's Beitr. zur Biol, der Pflanzen, Bd. vii. p. 225. 



14. Sargent, E., "Direct Nuclear Division' in the Embryo-sac of Lilium martagon," 



Annals of Botany, vol. x. p. 197, 1896. 



15. Schnitz, F., "Einige Beobachtungen iiber die vielkernigen Zellen der Siphonscladia- 



ceen," Festschrift d. naturfor. Gesellsch. in Halle, 1879. 



16. Schmitz, F., "Ueber die Zellkerne der Thallophyten," Vcrhandl. d. nat. hist. 



Vercins d. preuss. Jlhcinlande u. JTesffalens, p. 122, 1880. 



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845, 1880. 



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T. xv. p. 39. 



EXPLANATION OF PLATES I. AND II. 



Figs. 1-8. — Parenchyma cells from leaf-sheaths of Zea Mays. Fig. 2 in longitudinal section 



the rest transverse. 

 Figs. 9-13. — Cells from the growing point of the root of Zea Mays. Longitudinal section. 

 Fig. 14. — Parenchyma cells from leaf-sheaths of Secale cereale. Transverse section. 

 Fig. 15. — a. Parenchyma cell from leaf-sheath of Triticum vulgare. 



b. Parenchyma cells from stem of same. Transverse section. 





■ LIBRARYU,! 



