2 Stopes and Fujii, The nutritive relations of the surrounding tissues etc. 
Hi rase 1 ) having seen similar protein granules in tlie jacket 
cells and in the egg cells of Ginkgo thought that the protein in 
the egg came as such from the jacket cells, though he figured 
wide pits in the egg cell wall, each closed by a simple membrane. 
In Cycas Ikeno 2 ) thonght that the nnclei of the jacket cells 
become homogeneous and break off part of their substance which 
enters the egg cell. As he did not obserye the “sieve” perforations 
in the egg cell wall described by Goroschankin he holds the 
view that there is a wide, open communication between the egg 
cell and the sheath cells through which he figures this protein 
substance passing. 
Blackman 3 ) and, at one time Chamberlain 4 ), followed 
Strasburger’s view and considered the „Hofmeister Körperchen“ 
to be merely-protein vacuoles. 
Arnoldi 0 ) investigated the origin of these bodies in the 
Abietineae, concluding that they are the nnclei of the jacket 
cells which have passed bodily into the egg. According to him 
these nuclei are replaced in the jacket cells by others coming in 
from the surrounding endosperm cells. In Cephalotaxus and Dammara 
he describes protein originating in the nuclei of the sheath cells 
and passing into the egg. He brings together a series of 
Gymnosperms and states that in all cases the protein vacuoles and 
granules in the egg arise directly or indirectly from the nuclei of 
the jacket cells. Arnoldrs results however have not been conlirmed 
by Murril' 5 6 ) in Tsuga , Ferguson 7 8 ) in Pinus , Miyake s ) in 
Picea and Abies , Land 9 ) in Thuja , or Sludsky 10 ) in Juniperus, 
and were even denied by Strasburger 11 ). 
1 ) Hi rase, S., „Etudes s. 1. fecondation et l’embryolog. d. Ginkgo biloba. 
(Journ. of the Coli, of Sei. Imp. Univ.“. Tokio. Vol. VIII. 1895. Plate XXXI, 
Hg*. 6 and p. 12.) 
2 ) Ikeno, S., „Untersuch, ü. d. Entwick. . . . b. Cycas revoluta“ (Jahrb. 
f. wiss. Pot. XXXII. 1898. p. 557-600. Plate 8 fig. 7 b.) 
3 ) Blackman, V. H., „The cytolog. features of fertiliz. and related 
phenom. in Pinus sylvestris “. (Phil. Trans. Boy. Soc. Lond. Ser. B. 190. 
1898. p. 395—642. see p. 417.) 
4 ) Chamberlain, C. J., „Oogenesis in Pinus Laricio u . (Bot. Gaz. 27. 
1899.. p. 268 to 280. see p. 273.) 
°) Arnoldi, W., „Beit. z. Morph, d. Gymnosp.“. IV. (Flora. Bd. 87. 
1900. see p. 4.) 
6 ) Murril, W. A., „The develop. of the Archeg. and fertiliz. in the 
Hemlockspruce (Tsuga canadensis). (Ann. of Botany. 14. 1900. p. 5—83.) 
7 ) Ferguson, M. C., „Contrib. to the know. of the life hist, of Pinus"'. 
(Proc. of the Washington Acad. of Sei. Sept. 1904. Vol. VI. p. 1—202. 
see p. 104.) 
8 ) Miyake, K., „On the develop. of the sexual Organs and fertiliz. in 
Picea excelsa V (Ann. of Bot. 17. 1903. p. 351.) „Contrib. to fertiliz. and 
embryog. of Abies balsamea u . (Beiheft, z. Bot. Centralbl. 14. 1903. p. 134.) 
9 ) Land, W. J. G., „A morph. study of Thuja“. (Bot. Gaz. 1902. 
p. 249—258.) 
10 ) Sludsky, X.. „Ueber d. Entwicklungsgeschichte d. Juniperus communis". 
(B. d. D. Bot. Ges. Bd. 23. 1905. Heft 5. p. 214.) 
n ) Strasburger, E., „Ueber Plasmaverbindungen pflanzlicher Zellen“. 
(Jahrb. f. wiss. Bot. Vol. 36. 1901. p. 550—552.) 
