. The Scottish botanical review . hree largenuclei, apparently about to fuse, were present in one of the cells ; twoof these are shown in a. x 90. Fig. 31. Group of three small nuclei from another cell of the same sac. x 250, Fig. 32. Two-celled embryo {em.) and synergidse of ^. simplex. x 200. Fig. 33. Lower part of the same embryo-sac, showing the young endosperm. Fig. 34. Embryo-sac of ^. Jzw/Z^jT, containing a one-celled embryo (^w.). x 120. Fig. 35. Large fusion-nucleus made up of three nuclei. x about 500. Fig. 36. Embryo-sac of A. modestttvi, with egg apparatus at the base, and twofree
. The Scottish botanical review . hree largenuclei, apparently about to fuse, were present in one of the cells ; twoof these are shown in a. x 90. Fig. 31. Group of three small nuclei from another cell of the same sac. x 250, Fig. 32. Two-celled embryo {em.) and synergidse of ^. simplex. x 200. Fig. 33. Lower part of the same embryo-sac, showing the young endosperm. Fig. 34. Embryo-sac of ^. Jzw/Z^jT, containing a one-celled embryo (^w.). x 120. Fig. 35. Large fusion-nucleus made up of three nuclei. x about 500. Fig. 36. Embryo-sac of A. modestttvi, with egg apparatus at the base, and twofree nuclei {en.). x 120. Fig- 37 Chalazal end of an older embryo-sac of the same species ; o, the egg (orperhaps one-celled embryo). x 120. Fig. 38. An older embryo-sac of A. modestum with a two-celled embryo {em.).X 120. Figs. 39; 40. Fusion nuclei from endosperm-cells, x 250. Fig. 41. Embryo-sac of ^. inodesium, with a young embryo [em.). The primaryendosperm in the concave side of the sac is conspicuous. x 120. 3COT BOT VOL 1. m em D H Campbell. Cei PLATF. ^ CAMPBELL, Embryo-sac of Ajlaoneiiu THE EMBRYO-SAC OF AGLAONEMA II5 (4) Campbell, D. H.—Studies on the Aracese Annals of Botany, xiv. 1-25, 1900. (5) Campbell, D. H.— Studies on the Aracese. The Embryo-sac and the Embryo of Aglaonema and Spathicarpa. Ibid.^ , 1903. (6) Campbell, D. H.—Studies on the Aracere, III. Ibid.^ xix. 329-349, 1905. (7) Gow, J. E.— Morphology of ?S/>aMjVfwa/a?//^/a. Bot. Gazette, xliii, 131-136, 1907. Note on Victoria regia, John Arcangeli, Professor of Botany at Fisa, Italy} This plant, the most beautiful of all the species in theNymphaeaceae or water-lily family, has been recentl) culti-vated in the Botanic Garden of Pisa (Italy) with excellentresults and very little expense, using chiefly solar heat. Thegermination of the seeds was carried out in a small tank ofzinc, with water, gently warmed from below by a petroleumlamp. The sowing was made in the month of Marc
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