Function of the Septal Glands in Kniphofia. 2 5 
EXPLANATION OF FIGURES IN PLATE III. 
Illustrating Miss E. R. Saunders’ paper on the structure and function of the 
septal glands in Kniphofia. All the figures were drawn with obj. F. oc. 
2 (Zeiss) except figs, i, 2, 3, and 11. 
Fig. 1. (diagrammatic). Part of a transverse section of an ovary showing one 
septum, and the position of the gland-lumen. 1. lumen : f. v. fibro-vascular 
bundles : e. external wall of the ovary : 0. loculi of the ovary. 
Fig. 2. (diagrammatic). Septum in optical longitudinal section. To show the 
position and extent of a gland, the area of which is shaded, n. neck : p. m. 
peripheral margin : c. m. central margin : st. style. 
Fig. 3. (diagrammatic). Septum in longitudinal vertical section. 0. e. 1. as in 
fig. 1. (The ovules have been omitted from the drawing). 
The following lettering applies to all the succeeding figures, n. nucleus : 
vacuole : s. starch-grains : a. thin outer layer of external wall : /?. broad inner 
layer : S. metaplasm : m. mesh-work. 
Fig. 4. Epidermal gland-cells from a young bud. 
Fig. 5. Epidermal cells from an older bud with numerous large starch-grains, 
granular contents, and in some cases vacuoles. External wall shows slight 
thickening. 
Fig. 6. Epidermal gland-cells from an open flower in which the anthers are still 
closed. The mucilaginous degeneration is now well-marked, the thin cellulose 
membrane is indicated by the thick dark line (a), the mucilaginous layer by the 
broad band (/ 3 ). The cells contain very many large compound starch-grains, and 
much granular metaplasm. 
Fig. 7. Three epidermal cells from a fully open flower. To show the meshwork 
stage. Starch absent. 
Fig. 8. To show the same stage in sub-epidermal cells. In all but d. the nucleus 
has been omitted, and in c. and d. the meshwork has been ruptured in the 
preparation. 
Fig. 9. An older stage than fig. 7. The meshwork is beginning to disappear, 
and the nucleus is being withdrawn from its central position. 
Fig. 10. Epidermal gland-cells in the last stage. The meshwork has disap- 
peared, and been replaced by large vacuoles, and in a and c the nucleus is parietal. 
Fig. 11. Obj. cc, oc. 2. (Zeiss). Transverse section of part of a septum. To 
show the relation of the glandular area {gl) to the unmodified tissue of the 
septum (u.t.). 
