746 Lee. — Seedling Anat 07 ny of Certain Sympetalae. 
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p. 125. 
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p. 279. 
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Annals of Botany, xx, 1906, p. 395. 
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10. -, and de Fraine, E. : On the Seedling Structure of Gymnosperms. Annals of 
Botany, xxii, 1908. 
11. : On the Seedling Structure of certain Centrospermae. Annals 
of Botany, xxvi, 1912, p. 175. 
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(Bot.), 7 e ser., t. xi, 1890, p. 193. 
13. Sargant, E. : A New Type of Transition from Stem to Root in the Vascular System of 
Seedlings. Annals of Botany, xiv, 1900, p. 633. 
14. . Origin of the Seed-leaf in Monocotyledons. New Phytologist, i, 1902, p. 197. 
15. : A Theory of the Origin of Monocotyledons. Annals of Botany, xvii, 1903, p. 1. 
16. : Evolution of Monocotyledons. Bot. Gaz., xxxvii, 1904, p. 325. 
17. : Reconstruction of a Race of Primitive Angiosperms. Annals of Botany, xxii, 
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New Phytologist, 1904. 
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Spermophytic Hypocotyls. Brit. Ass. Report, 1906. 
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dons. Annals of Botany, iii, 1889-90, p. 123. 
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Rend. Ac. des Sci., t. lviii, 1869. 
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Dec. 1911, p. 293. 
EXPLANATION OF FIGURES IN PLATE LXVIII. 
Illustrating Mr. Lee’s paper on the Seedling Anatomy of the Tubiflorae. 
Fig. 1. Convolvulus tricolor , var. major. A, whole seedling (| nat. size). B, single cotyledon 
^nat. size). 
Fig. 2. Datura Metel. Portion of transverse section of upper part of root, showing three proto- 
xylem groups. (oc,y, z and x',y', z') in each xylem strand. 
Fig. 3. Incarvillea Delayvei . Transverse section of hypocotyl, showing division of the proto- 
xylem of each cotyledonary bundle into thr ee (mpx, Ipxa, l.pxb , and mpx ' , l.pxa ' , Lpxb ', respectively). 
For description see text (p. 740). ph. — phloem. 
Fig. 4. Incarvillea Delayvei. Transverse section of root, showing tetrarch structure derived 
from condition seen in Fig. 3. 
