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The nutritive relations of the surrounding tissues 

 to the Archegonia in Gymnosperms. 



By 

 M. C. Stopes, D. Sc, Ph. D. 



Assistant Lecturer in Botany, University of Manchester, 



and 

 K. Fujii, Ph. D. 



Assistant Professor of Botany, Imperial University of Tokyo. 



With plate I. 



As regards the pkysiology of nutrition in the egg cells of 

 Gymnosperms but little is to be found in the literature, but the 

 socalled ,, protein vacuoles" and protein granules lying in the 

 cytoplasm of the egg, have attracted the attention of various authors. 



Hofmeister 1 ) first called attention to the protein vacuoles 

 under the name ..Keimbläschen". He took them for cells formed 

 by free cell formation and thought that from one of them the 

 embryo arose. Schacht' 2 ) however recognised them as vacuoles 

 and speaks of them in his text as „Scheinzellen (vacnolen)" and 

 says (p. 399) that these structures „die ich nicht für wahre Zellen, 

 sondern für Vacnolen oder Scheinzellen halte", have not the nature 

 Hofmeister assigned to them. Strasburger 3 ) also thought that 

 they had the nature of vacnoles, and as they contained protein 

 grains he spoke of them under the name „Eiweiss-Vacuolen". 

 Goroschankin 4 ) on the other band says of these bodies that 

 they ..keine Vacuolen sind (wie Strasburger (sie) meint), sondern 

 grosse Ähnlichkeit mit Zellkernen besitzen". 5 ) 



1 ) Hofmeister, W.. „Vergleich. Unters, d. Keimung etc. höherer 

 Krvptog. ... u. d. Samenbildung d. Coniferen". Leipzig 1851. p. 130—131 

 and 140. 



2 ) Schacht. H., „Lehrbuch d. Anat. u. Physiol. d. Gewächse". Zweiter 

 Teil. Berlin 1859. p. 398—400. 



! ) Strasburger, E., „Neue Untersuch, ü. d. Befruchtungsorg. b. d. 

 | l'hancrog.". 1884. p. 50. 



r>« 4 ) Grorosehankin, J., ,.Ueb. d. Korpuskeln u. d. Geschlechtsprocess d. 



Gymnospermen". 1880. 



6 ) Goroachankin, J., Ueb. d. Befrucht.-Prozess bei Pinus Pumilio. 

 Strassburg 1883. p. 3. 



Beihefte Bot. Centralbl. Bd. XX. Abt. I. Heft l. 1 



