Ranales , Rhoeadoles , and Rosales. 
733 
and which, when subjected to a careful analysis, might prove of some taxo- 
nomic value. The phylogenetic aim of recent work I conceive to be 
something much broader, and I think the results already obtained, which 
I will not attempt now to summarize or analyse, fully justify the labours and 
the hopes of the earlier workers. It seems possible that data such as that 
supplied by Lee on the Composites may one day be enhanced in value 
by statistical and experimental work, the need for which is so rightly 
laid stress upon by Compton and by Hill and de Fraine. 
Bedford College, 
London. 
EXPLANATION OF PLATES L AND LI. 
Illustrating Miss E. N. Thomas’s paper on Seedling Anatomy of Ranales, Rhoeadales, and Rosales. 
PLATE L. 
Anemone coronctria. 
Fig. i. Outline of seedling. Natural size. 
Fig. 2. Base of cotyledonary tube of same, x 167. 
Fig. 3. Hypocotyl. x 427. 
Fig. 4. Root, x 427. 
Liriodendron tulipifera. 
Fig. 5. Outline of seedling. Natural size. 
Fig. 6. Outline of transverse section of base of cotyledons, x 50. 
Fig. 7. Hypocotyl. x 300. 
Fig. 8. Root, x 427. 
Magnolia tripetala. 
Fig. 9. Outline of seedling, x §. 
Fig. 10. Outline of transverse section of cotyledonary node, x 30. 
Fig. 11. Hypocotyl showing crushed protoxylem. x 167. 
Fig. 12. Root, x 200. 
PLATE LI. 
Iberis tenereana. 
Fig. 13. Outlines of bases of cotyledons, x 50. 
Fig. 14. Details of bundle of ‘north’ cotyledon of same, x 253. 
Fig. 15. Hypocotyl showing disorganizing protoxylem. x 253. 
Fig. 16. Root of same, x 253. 
Cheiranthus Cheiri. 
Fig. 17. Seedling. Natural size. 
Fig. 18. Outlines of cotyledon bases, x 50. 
Fig. 19. Bundle of ‘south ’ cotyledon showing crushed protoxylem. x 427. 
Fig. 20. Hypocotyl with crushed protoxylem. On the left is one lignified plumular element (p.). 
x 4 2 7 - 
Althaea rosea. 
Figs. 21 and 22. Seedlings. Natural size. 
Fig. 23. Outline of cotyledon bases, x 30. 
Fig. 24. Details of bundle of ‘north’ cotyledon of same, x 253. 
Fig. 25. Hypocotyl with median (cot.) and lateral (int.) protoxylem groups. X 253. 
Fig. 26. Root, x 253. 
