Campbell’—Studies on the Araceae . 
2 5 
PLATE HI. 
Figs. 43-52 refer to Lysichiton ; 53, 54, 55, Anthurium ; 56, Philodendron. 
Fig. 43. Median section of the fertilized ovule of Lysichiton. x about 40. nu., 
apex of nucellus; em., embryo ; end., endosperm ; ant., antipodal cells. 
Fig. 44. longitudinal section of the embryo embedded in the large-celled endo¬ 
sperm. Leitz, oc. 1, obj. 7. 
Fig. 45. Antipodal cells from an ovule of about the same age as the one shown 
in Fig. 43. Leitz, oc. 1, obj. 7. 
Fig. 46. Median longitudinal section of a young embryo. Leitz, oc. 1, obj. 7. 
Fig. 47. Outline of an older embryo, showing the beginning of the stem, si., and 
the cotyledon, cot. Leitz, oc. 1, obj. 3. 
Fig. 48. Two longitudinal sections of an older embryo. Leitz, oc. 3, obj. 3. 
Fig. 49. The stem-region of the same embryo more highly magnified. 
Fig. 50. Three longitudinal sections of a still older embryo. Leitz, oc. 1, obj. 3. 
Fig. 51. Transverse section through the stem region of an older embryo, 
x about 25. 
Fig. 52. Longitudinal median section of a nearly mature embryo, showing the 
lateral position of the primary root, r. x about 25. 
Fig* 53* Longitudinal section of an ovule of Anthurium Huegelii (?), showing 
the large-celled endosperm. No embryo could be detected. Leitz, oc. 1, obj. 3. 
Fig. 54. Ovule of Anthurium cordifolium, Kth., showing the large-celled endo¬ 
sperm. No embryo was evident. Leitz, oc. 1, obj. 3. 
Fig. 55. Two longitudinal sections of a full-grown embryo of Anthurium 
cordifolium. x 10. 
Fig. 56. Longitudinal section of a ripe ovule of Philodendron lacerum, Schott. 
Leitz, oc. 3, obj. 3. 
