10 
As regards the interior structure of our plant, it is to be re- 
marked that no mechanical tissue was observable, neither in the 
stolons, the rosette-bearing stem, nor, of course, in the tubers. 
The tuber contained inulin, forming great sphero-crystals after 
being preserved in alcohol, and these occurred principally in the 
bark. A pith was found in the young tubers, which were per- 
fectly solid, while the older ones were hollow on account of the 
partial disappearance of the pith. Cork was rather strongly de- 
veloped in the older tubers, but otherwise there was nothing 
remarkable to be observed in the interior structure. 
EXPLANATION OF PLATEs. 
a ls late « GX! re 
Fig. 1. The rhizome of Uvularia perfoliata, seen from before, showing the base 
of the two stolons, S, and four roots, natural size. 
Fig. 2. A later stage of the same, showing the bud, B, which in the following year 
will develop a flowering stem. 2 xX natural size. : 
Fig. 3. The end of one of the stolons of Uvu/aria with the beginning develop- 
ment of a root by R. 5 
Fig. 4. The rhizome of Oakesia sessilifolia, seen from above. Br.! and Br.® are 
branches. St., the base of the flowering stem from this year, surrounded by two 
scale-like leaves. R., the roots, two-thirds natural size. 
Fig. 5. Transverse section of the inferior face of the leaf of Uvularia, Ep., 
epidermis with a stoma. |} 
Plate CXII. 
Fig. 6. Transverse section of the inferior face of the leaf of Oakesia. Ep., 
epidermis with astoma. J 
Fig. 7. Transverse section of the interior part of the root of Uvularia. B., the 
bark, End., the endodermis. Pr., the pericambium. Ph., the phloém. X., 
the xylem. { 
Fig. 8. Transverse section of the interior part of the root of Oakesia. The letters 
as above. { 
Fig. 9. Transverse section of the median fibro-vascular bundle in the leaf of 
Uvularia. M., mesophyll. Ph., phloém. X., xylem. 1 
Fig. 10. Transverse section of the median fibro-vascular bundle in the leaf of 
Oakesia. The letters as above. 1 
Fig. 11. Epidermis and the collenchymatous tissue of the median part of the in- 
ferior face of the leaf of Oakesia, 1 
Fig. 12. Epidermis of the root of Uvu/aria, transverse section. | 
Fig. 13. Epidermis of the rhizome of Oafesia, transverse section, showing the 
wrinkled cuticule. | 
vi 
¥, indicates Ocular I, Objective VI. 
